National Instruments 372139B-01 manual

CAN Automotive Diagnostic Co mmand Set User Manual Automotive Diagnostic Command Set User Manual December 2007 372139B-01[...]

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Compliance Compliance with FCC/Canada Radio Frequency Interference Regulations Determining FCC Class The Federal Communications Commission (FCC) has rules to protect wireless co mmunications from inte rference. The FCC places digital electronics into two classes. These classes are known as Class A (for use in industrial-commercial locations onl y) [...]

© National Instruments Cor poration v Automotive Diagnost ic Command Set User Manual Contents About This Manual Conventions ............ .............. .............. .............. .............. .............. ............... .............. .... x i Related Documentation ......... .............. .............. ................. .............. ..[...]

Contents Automotive Diagnostic Comma nd Set User Manual vi ni.com Visual C++ 6 .................... .............. ........... .............. .............. .............. ............ 3-2 Other Programming Languages ................... .............. ................. .............. ...... 3-2 Debugging an Application ................ ............[...]

Contents © National Instruments Corpor ation vii Automotive Diagnostic Command Set User Manual ReadDTCByStatus.vi .............. .............. .............. .............. .............. .............. .. 5-48 ReadECUIdentification.vi ............. .............. .............. ................. .............. ....... 5-51 ReadMemoryByAddress.vi[...]

Contents Automotive Diagnostic Comma nd Set User Manual viii ni.com Chapter 6 Automotive Diagnostic Command Set API for C Section Headings ........... .............. .............. .............. .............. .............. .............. ............ 6-1 Purpose ............ .............. .............. .............. .............. ...........[...]

Contents © National Instruments Corporation ix Autom otive Diagnostic Command Set User Manual ndTesterPresent .............. ............... .............. .............. .............. .............. .......... 6-71 ndWriteDataByLocalIdentifier ........ .............. ............... ................. .............. .... 6-73 ndWriteMemoryByAddre[...]

© National Instruments Corporation xi Autom otive Diagnostic Command Set User Manual About This Manual This manual provides instructions for using the Automotive Diagnostic Command Set. It contains inform ation about installation, configuration, and troubleshooting, and also contains Automotive Diagnostic Command Set function reference for LabVIEW[...]

About This Manual Automotive Diagnostic Comma nd Set User Manual xii ni.com Related Documentation The following documents contain information that you mi ght find helpful as you read this manual: • ANSI/ISO Standard 11898-1993, Road Veh icles—Interchange of Digital Informati on—Controller Area Network (CAN) for High-Speed Communication • CA[...]

© National Instruments Corpor ation 1-1 Automotive Diagnost ic Command Set User Manual 1 Introduction Diagnostics involve rem ote execution of routines, or services, o n ECUs. To execute a routine, you send a byte st ring as a request to an ECU, and the ECU usually answers with a response byte string. Several diagnostic protocols such as KWP2000 a[...]

Chapter 1 Introduction Automotive Diagnostic Comma nd Set User Manual 1-2 ni.com T ransport Protocol As KWP2000 uses messages of variable byte lengths, a tr ansport protocol is necessary on layers with only a well defined (short) me ssage length, such as CAN. The transport protoco l split s a long KWP2000 message into pieces that can be transferred[...]

Chapter 1 Introduction © National Instruments Corpor ation 1-3 Automotive Diagnost ic Command Set User Manual as second byte, and a ResponseCode as third byte. The only e xception to this format is the negati ve response to an EscapeCode servic e; here, the third byte is an echo of the user -defined service code, and the fourth byte is the Respons[...]

Chapter 1 Introduction Automotive Diagnostic Comma nd Set User Manual 1-4 ni.com Measurements Use the ReadDataByLocal/CommonIden tifier services to access ECU data in a way similar to a DAQ list. A Local/Com monIdentifier describes a list of ECU quantities that are then transf erred from the ECU to th e tester. The transfer can be either single val[...]

Chapter 1 Introduction © National Instruments Corpor ation 1-5 Automotive Diagnost ic Command Set User Manual UDS (Unified Diagnostic Ser vices) The UDS protocol has become a de fact o standard in automotive diagnostic applications. It is standardized as ISO 15765-3. UDS describes the implementation of vari ous diagnostic services you can access t[...]

Chapter 1 Introduction Automotive Diagnostic Comma nd Set User Manual 1-6 ni.com Note Some parameters to both the Request and Positive Response Messages are optional. Each service defines these parameters. Also, the standard does not define all parameters. The Negati v e Response Message is usually a three-byte message: it has the Negati ve Respons[...]

© National Instruments Corpor ation 2-1 Automotive Diagnost ic Command Set User Manual 2 Installation and Configuration This chapter explains how to in stall and configure the Automotive Diagnostic Command Set. Installation This section discusses the Automoti ve Diagnostic Command Set installation for Microsoft Windows. Note Y ou need administ rat[...]

Chapter 2 Installation and Configuration Automotive Diagnostic Comma nd Set User Manual 2-2 ni.com Refer to Appendix A, Troubleshooting an d Common Questions , of the NI-CAN User Manual for information abo ut resolving hardware installation problems. When installatio n is complete, you can access the Automoti v e Diagnostic Command Set functions in[...]

© National Instruments Corpor ation 3-1 Automotive Diagnost ic Command Set User Manual 3 Application Development This chapter explains how to develop an application using the Au tomotive Diagnostic Command Set API. Choosing the Programming Language The programming language you use for application deve lopment determines how to access the Automotiv[...]

Chapter 3 Application Development Automotive Diagnostic Comma nd Set User Manual 3-2 ni.com LabWindows/CVI examples. The exam ples are in the LabWindows/CVI samplesAutomotive Diagnostic Comma nd Set directory. Each example includes a complete LabWindows/CVI project ( .prj file). The example description is in co mments at the top of the .c file. V[...]

Chapter 3 Applicati on Development © National Instruments Corpor ation 3-3 Automotive Diagnost ic Command Set User Manual pointers to Automo tive Diagnostic Command Set functions in the application. The foll owing section describes how to use th e Win32 functions for C/C++ environments other th an Visual C/C++ 6. For more detailed information, ref[...]

© National Instruments Corpor ation 4-1 Automotive Diagnost ic Command Set User Manual 4 Using the Automotive Diagnostic Command Set Structure of the Automotive Diagnostic Command Set Diagnostic Services Layer KWP2000 Services UDS (DiagOnCAN) Services OBD(OnBoard Diag) Services Auxiliary Routines Diagnostic T ranspor t Layer Connection Management [...]

Chapter 4 Using th e Automotive Diagnostic Command Set Automotive Diagnostic Comma nd Set User Manual 4-2 ni.com The Automotive Diagnostic Command Set is structured into three layers of functionality: • The top layer implements three sets of diagn ostic services for the diagnostic protocols KWP20 00, UDS (DiagOnCAN), and OBD (On-Board Diagnost ic[...]

Chapter 4 Using the Automo tive Diagnostic Command Set © National Instruments Corpor ation 4-3 Automotive Diagnost ic Command Set User Manual General Programming Model First, you must open a diagnostic comm unication link. This inv olves initializing the CAN port and defining communication par ameters such as the baud rate and CAN identifiers on w[...]

Chapter 4 Using th e Automotive Diagnostic Command Set Automotive Diagnostic Comma nd Set User Manual 4-4 ni.com When you finish your diagnostic services, you must close the diagnostic communication lin k. This finally closes the CAN port. For the V W TP 2.0, you should disconn ect the communicati on channel established b efore closing. A vailable [...]

© National Instruments Corpor ation 5-1 Automotive Diagnost ic Command Set User Manual 5 Automotive Diagnostic Command Set API for LabVIEW This chapter lists the LabVIEW VIs for the Automotive Diagnostic Command Set API and describes the format, purpose, and parameters for each VI. The VIs are listed a lphabetically in four categories: general fun[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-2 ni.com List of VIs The follo wing table is an alphabetical list of the Automotiv e Diagnostic Comman d Set VIs. Table 5-1. Automotive Diagnostic Command Set API VIs for LabVIEW Function Pur pose ClearDiagnosticInforma tion.vi Executes the[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corpor ation 5-3 Automotive Diagnost ic Command Set User Manual EnableNormalMessageTransmission.vi Executes the EnableNormalMessageT ransmission service. The ECU starts transmitting its regular communic ation messages (usually CAN messages). InputOutput ControlByL[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-4 ni.com OBD Request Powertrain Freeze Frame Data.vi Executes the OBD Request Po wertrain Freeze Frame Data service. Reads a data record from the ECU that has been stored while a Diagnostic Trouble Code occurred. OBD Request Supported PIDs.[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corpor ation 5-5 Automotive Diagnost ic Command Set User Manual SendKey.vi Executes the Security Access service to send a key to the ECU. StartDiagnosticSession.vi Executes the StartDiagnosticSession servi ce. Sets up the ECU in a specific diagnos tic mode. StartR[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-6 ni.com UDS ReadDataByIdentifier.vi Executes the UDS ReadDataByIdentif ier service. Reads a data record from the ECU. UDS ReadMemoryByAddress.vi Executes the UDS ReadMemoryBy Address service. Reads data from the ECU memory . UDS ReportDTCB[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corpor ation 5-7 Automotive Diagnost ic Command Set User Manual UDS WriteD ataByIdentif ier.vi Executes the UDS WriteDataByIdentif ier service. Writes a data record to the ECU. UDS WriteMemoryByAddress.vi Executes the UDS WriteMemoryBy Address service. Writes data[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-8 ni.com General Functions Close Diagnostic.vi Purpose Closes a diagnostic session. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired through subsequent diagn ostic VIs. Normally , [...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corpor ation 5-9 Automotive Diagnost ic Command Set User Manual Output error out describes error conditions. If the error in cluster indicated an error , the error out cluster contains the same information. Otherwi se, error out describes the error status of this [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-10 ni.com Convert from Phys.vi Purpose Con verts a physical data value into a bina ry representation using a type descriptor . Format Input type descriptor is a cluster that specifies the con version of the physical value to its binary repr[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-11 Autom otive Diagnostic Command Set User Manual Output data out i s the binary representati on of the physical value. If you build a record of multiple v alues, you can concatenate the outputs of se veral instances of Convert from Phys.vi . Descrip[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-12 ni.com Convert to Phys.vi Purpose Con verts a binary representation of a v alue into its physical value using a type descript or . Format Input type descriptor is a cluster that specifies the con version of the binary representation to i[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-13 Autom otive Diagnostic Command Set User Manual Description Data output from diagnosti c services (for example, ReadDataByLocalIdentifier.vi ) is usually a byte stream of binary data. If you have a description of the data output (for example, byte [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-14 ni.com Create Extended CAN IDs.vi Purpose Creates diagnostic CAN IDs according to ISO 15765-2. Format Input addressing mode specifi es whether the ECU is physically or fu nctionally addressed. transport protocol specifies whether normal [...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-15 Autom otive Diagnostic Command Set User Manual Diag Get Property .vi Purpose Gets a diagnostic global internal parameter . Format Input property ID defines the parameter whose v alu e is to be retrie ved. Y ou can create the v alues using an Enum [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-16 ni.com 6 Wait Frames to Send (N_WAIT) is the number of W AIT frames the master sends e very time before a CTS frame is sent. If this v alue is set to a ne gati v e number (for e xample, 0xFFFFFFFF = –1), the master sends an O VERLOAD f[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-17 Autom otive Diagnostic Command Set User Manual Diag Set Property . vi Purpose Sets a diagnostic g lobal internal parameter . Format Input property ID defines the parameter whose v alu e is to be retrie ved. Y ou can create the v alues using an Enu[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-18 ni.com 6 Wait Frames to Send (N_WAIT) is the number of W AIT frames the master sends e very time before a CTS frame is sent. If this v alue is set to a ne gati v e number (for e xample, 0xFFFFFFFF = –1), the master sends an O VERLOAD f[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-19 Autom otive Diagnostic Command Set User Manual Diagnostic Ser vice.vi Purpose Executes a generic diagnostic service. If a sp ecial service is not a v ailable through the KWP2000, UDS, or OBD service functions, you can build it using this VI. Forma[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-20 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. error code is the error code sent with a negati ve response message. In addition, the error cluster indicates an error and giv es a more[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-21 Autom otive Diagnostic Command Set User Manual DTC to String.vi Purpose Returns a string representation (such as P1234 ) for a 2-byte Diagno stic T rouble Code (DTC). Format Input DTC (num) is the DTC number as retu rned in the clusters of ReadDTC[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-22 ni.com OBD Open.vi Purpose Opens an OBD-II diagnostic session on a CAN port. Format Input CAN interface specifies the CAN interface on which the diagnostic communication should take place. The v alues are CAN0, CAN1, and so on. baudrate [...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-23 Autom otive Diagnostic Command Set User Manual Output diag ref out is a cluster containing all necessary diagnostic session information. W ire this cluster as a handle to all subsequent diagnostic VIs and close it using Close Diagnostic.vi . error[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-24 ni.com Open Diagnostic.vi Purpose Opens a diagnostic session on a CAN port . Communication to the ECU is not yet started. Format Input CAN interface specifies the CAN interface on which the diagnostic communication should take place. The[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-25 Autom otive Diagnostic Command Set User Manual status i s T RU E i f a n e r r o r occurred. This VI is not ex ecuted when status is TR UE. code is the error code number identi fying an error . A value of 0 means success. A neg ativ e v alue means[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-26 ni.com VWTP Connect.vi Purpose Establishes a connect ion channel to an ECU using the VW TP 2.0. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired through subsequent diagn ostic V[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-27 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. error out describes error conditions. If the error in cluster indicated an error , the error out cluster c[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-28 ni.com VWTP Connection T est.vi Purpose Maintains a connection channel to an ECU using the VW TP 2.0. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired through subsequent diagn o[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-29 Autom otive Diagnostic Command Set User Manual code is the error code number identi fying an error . A value of 0 means success. A neg ativ e v alue means error: the VI did not ex ecute the intended operation. A positiv e value means warning: the [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-30 ni.com VWTP Disconnect.vi Purpose T erminates a conn ection channel to an ECU using the VW TP 2.0. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired through subsequent diagn osti[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-31 Autom otive Diagnostic Command Set User Manual code is the error code number identi fying an error . A value of 0 means success. A neg ativ e v alue means error: the VI did not ex ecute the intended operation. A positiv e value means warning: the [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-32 ni.com KWP2000 Ser vices ClearDiagnosticInformation.vi Purpose Executes the ClearDiagnosticInfo rmation service and clears se lected Diagnostic T rouble Codes (DTCs). Format Input DTC descriptor is a cluster that describes the DTC record[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-33 Autom otive Diagnostic Command Set User Manual group of DTC specifies the group of Diagnostic T rouble Codes to be cleared. The follo wing values hav e a sp ecial meaning, a nd you can specify them through a ring control: 0x0000 All powertrain DTC[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-34 ni.com code is the error code number identi fying an error . A value of 0 means success. A negati v e v alue means error: the VI did not ex ecute the intended operation. A positiv e value means warning: the VI executed intended operation[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-35 Autom otive Diagnostic Command Set User Manual ControlDTCSetting.vi Purpose Executes the ControlDTCSetting service and modifies the generation beha vior of selected Diagnostic Trouble Codes (DTCs). Format Input DTC descriptor is a cluster that des[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-36 ni.com group of DTC specifies the group of Diagnostic T rouble Codes to be controlled. The follo wing v alues ha v e a special meaning, and you can specify them through a ring contro l: 0x0000 All powertrain DTCs 0x4000 All chassis DTCs [...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-37 Autom otive Diagnostic Command Set User Manual code is the error code number identi fying an error . A value of 0 means success. A neg ativ e v alue means error: the VI did not ex ecute the intended operation. A positiv e value means warning: the [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-38 ni.com DisableNormalMessageT ransmission.vi Purpose Executes the Dis ableNormalMessageT ransmission service. The ECU no longer transmits its regular communication message s (usually CAN messages). Format Input diag ref in specifies the d[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-39 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error o[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-40 ni.com ECUReset.vi Purpose Executes the ECUReset service. Resets the ECU. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired through subsequent diagn ostic VIs. Normally , it is n[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-41 Autom otive Diagnostic Command Set User Manual status i s T RU E i f a n e r r o r occurred. This VI is not ex ecuted when status is TR UE. code is the error code number identi fying an error . A value of 0 means success. A neg ativ e v alue means[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-42 ni.com EnableNormalMessageT ransmission.vi Purpose Executes the EnableNormalMessage T ransmission service. The ECU starts transmitting it s regular communication message s (usually CAN messages). Format Input diag ref in specifies the di[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-43 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error o[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-44 ni.com InputOutputControl ByLocalIdentifier .vi Purpose Executes the InputOutputControlByLocalIdentifier service. Modifies ECU I/O port beha vior . Format Input data in defi nes application-specific data for this service. diag ref in spe[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-45 Autom otive Diagnostic Command Set User Manual code is the error code number identi fying an error . A value of 0 means success. A neg ativ e v alue means error: the VI did not ex ecute the intended operation. A positiv e value means warning: the [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-46 ni.com ReadDataByLocalIdentifier .vi Purpose Executes the ReadDataByLocalIdentif ier serv ice. Reads a data r ecord from the ECU. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wire[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-47 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out retu rns the data record from the ECU. If yo u know the record data description, you can interpre[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-48 ni.com ReadDTCByStatus.vi Purpose Executes the ReadDiagnosticT roubleCodesByStatus service. Reads selected Diagnostic T rouble Codes (DTCs). Format Input DTC descriptor is a cluster that describes the DTC records the ECU deliv ers: DTC B[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-49 Autom otive Diagnostic Command Set User Manual mode defines the type of DTCs to be read. The v alues are application specific. The usual v alues are: 2: AllIdentified 3: AllSupported group of DTC specifies the group of Diagnostic Trouble Codes to [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-50 ni.com Status is the DTC status. Usually , this is a bit f ield with the following meaning: Bit Meaning 0 testFailed 1 testFailedThisMonitoringCycle 2 pendingDTC 3 confirmedDTC 4 testNotCompletedSin ceLastClear 5 testFailedSinceLastClear[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-51 Autom otive Diagnostic Command Set User Manual ReadECUIdentification.vi Purpose Executes the ReadECUIdentification servi ce. Returns ECU identif ication data. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Dia[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-52 ni.com success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions. If the error in cluster indicated an error , the error out cluster contains the same informat[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-53 Autom otive Diagnostic Command Set User Manual ReadMemor yByAddress.vi Purpose Executes the ReadMemoryBy Address servi ce. Reads data from the ECU memory . Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagno[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-54 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. Data out returns the memory data from the ECU. success? indicates successful receipt of a positi ve response message for this diagnostic[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-55 Autom otive Diagnostic Command Set User Manual ReadStatusOfDTC.vi Purpose Executes the ReadStatusOfDiagnosticT roubleCo des service. Reads selected Diagnostic T rouble Codes (DTCs). Format Input DTC descriptor is a cluster that describes the DTC r[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-56 ni.com group of DTC specifies the group of Diagnostic Trouble Codes to be read. The follo wing values hav e a special meaning, and you can specify them through a ring control: 0x0000 All powertrain DTCs 0x4000 All chassis DTCs 0x8000 All[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-57 Autom otive Diagnostic Command Set User Manual Status is the DTC status. Usually , this is a bit field with the following meaning: Bit Meaning 0 testFailed 1 testFailedThisMonitoringCycle 2 pendingDTC 3 confirmedDTC 4 testNotCompletedSin ceLastCle[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-58 ni.com RequestRoutineResu ltsByLocalIdentifier .vi Purpose Executes the RequestRoutineResul tsByLocalIdentif ier service. Returns results fro m a routine on the ECU. Format Input diag ref in specifies the diagnostic session handle, obtai[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-59 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out r eturns application-specific output paramete rs from the routine. success? indicates successful [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-60 ni.com RequestSeed.vi Purpose Executes the Security Access service to retrie ve a seed from the ECU. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired through subsequent diagn os[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-61 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. seed out returns the seed from the ECU. success? indicates successful receipt of a positi ve response mess[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-62 ni.com SendKey .vi Purpose Executes the Security Access service to send a ke y to the ECU. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired through subsequent diagn ostic VIs. N[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-63 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error o[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-64 ni.com StartDiagnosticSession.vi Purpose Executes the StartDiagnosticSession service. Sets up the ECU in a sp ecific diagnostic mode. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and [...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-65 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error o[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-66 ni.com StartRoutineByLocalIdentifier .vi Purpose Executes the StartRoutineByLo calIdentif ier service. Execu tes a routine on the ECU. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-67 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out r eturns application-specific output paramete rs from the routine. success? indicates successful [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-68 ni.com StopDiagnosticSession.vi Purpose Executes the StopDiagnosticSession service. Returns the ECU to normal mode. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired through subs[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-69 Autom otive Diagnostic Command Set User Manual error out describes error conditions. If the error in cluster indicated an error , the error out cluster contains the same information. Otherwi se, error out describes the error status of this VI. sta[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-70 ni.com StopRoutineByLoc alIdentifier .vi Purpose Executes the StopRoutineByLocalIdentif ier service. Stops a routine on the ECU. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-71 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out r eturns application-specific output paramete rs from the routine. success? indicates successful [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-72 ni.com T esterPresent.vi Purpose Executes the T esterPresent service. Keeps the ECU in diagnostic mode. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired through subsequent diagn[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-73 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error o[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-74 ni.com WriteDataByLocalIdentifier .vi Purpose Executes the WriteDataByLocalIdentif ier serv ice. Writes a data record to the ECU. Format Input data in d efines the data record written to the ECU. I f you know the record data description,[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-75 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error o[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-76 ni.com WriteMemoryByAddress.vi Purpose Executes the WriteMemoryBy Address servi ce. Writes data to the ECU memory . Format Input data in defines the memory block to b e written to th e ECU. diag ref in specifies the diagnostic session ha[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-77 Autom otive Diagnostic Command Set User Manual Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error o[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-78 ni.com UDS (DiagOnCAN) Ser vices UDS ClearDiagnosticInformation.vi Purpose Executes the UDS ClearDiagnostic Information service. Clears selected Diagnostic T rouble Codes (DTCs). Format Input DTC descriptor is a cluster that describes th[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-79 Autom otive Diagnostic Command Set User Manual group of DTC specifies the group of Diagnostic T rouble Codes to be cleared. The v alues are application specific. The follo wing v alue has a special meaning, and you can speci fy it through a ring c[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-80 ni.com Description This VI clears the diagnostic informat ion on the ECU memory . If the group of DTC parameter is present, the ECU is requested to clear all memory including th e DTCs. For further details about this service, refer to th[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-81 Autom otive Diagnostic Command Set User Manual UDS CommunicationControl.vi Purpose Executes the UDS CommunicationCont rol service. Use this VI to switch transmi ssion and/or reception of the normal co mmunication messages (usually CAN messages) on[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-82 ni.com code is the error code number identi fying an error . A value of 0 means success. A negati v e v alue means error: the VI did not ex ecute the intended operation. A positiv e value means warning: the VI executed intended operation[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-83 Autom otive Diagnostic Command Set User Manual UDS ControlDTCSetting.vi Purpose Executes the UDS ControlDTCSett ing service. Modifies Diagnostic Tr ouble Code (DTC) generation behavior . Format Input diag ref in specifies the diagnostic session ha[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-84 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions.[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-85 Autom otive Diagnostic Command Set User Manual UDS DiagnosticSessionControl.vi Purpose Executes the UDS DiagnosticSessionControl ser vice. Sets up the ECU in a speci fic diagnostic mode. Format Input diag ref in specifies the diagnostic session ha[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-86 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions.[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-87 Autom otive Diagnostic Command Set User Manual UDS ECUReset.vi Purpose Executes the UDS ECUReset service. Resets the ECU. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired through subseque[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-88 ni.com source identifies the VI where the error occurred. Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagno[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-89 Autom otive Diagnostic Command Set User Manual UDS InputOutputControlByIdentifier .vi Purpose Executes the UDS InputOutputControlByIdentifier service. Modifies ECU I/O port behavior . Format Input data in defines application specifi c data for thi[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-90 ni.com code is the error code number identi fying an error . A value of 0 means success. A negati v e v alue means error: the VI did not ex ecute the intended operation. A positiv e value means warning: the VI executed intended operation[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-91 Autom otive Diagnostic Command Set User Manual UDS ReadDataByIdentifier .vi Purpose Executes the UDS ReadDataByIdentif ier servic e. Reads a data record from the ECU. Format Input diag ref in specifies the diagnostic session handle, obtained from [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-92 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out retu rns the data record from the ECU. If yo u know the record data description, you can use Convert to Phys.vi to interpret th[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-93 Autom otive Diagnostic Command Set User Manual UDS ReadMemor yByAddress.vi Purpose Executes the UDS ReadMemoryBy Address serv ice. Reads data from the ECU memory . Format Input diag ref in specifies the diagnostic session handle, obtained from Ope[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-94 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out returns the ECU memory data. success? indicates successful receipt of a positi ve response message for this diagnostic service.[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-95 Autom otive Diagnostic Command Set User Manual UDS ReportDTCBySeverityMaskRecord.vi Purpose Executes the ReportDTCBySe verityMaskRecord subfunction of the UDS ReadDiagnosticTroubleCodeInformation service. Reads selected Diagnostic Tr ouble Codes ([...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-96 ni.com severity mask def ines the status of DTCs to be read. The v alues are application specific. status def ines the status of DTCs to be read. The values are application specific. error in is a cluster that describes error conditions [...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-97 Autom otive Diagnostic Command Set User Manual 6 testNotCompletedThisMonitor ingCycle 7 warningIndicatorRequested Add Data contains optional addit ional data for this DTC. success? indicates successful receipt of a positi ve response message for t[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Comma nd Set User Manual 5-98 ni.com UDS ReportDTCByStatusMask.vi Purpose Executes the ReportDTCByStatusMask subfunction of the UDS ReadDiagnosticTroubleCodeInformation service. Reads selected Diagnostic T rouble Codes (DTCs). Format Input DTC descriptor is a cluster[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-99 Autom otive Diagnostic Command Set User Manual error in is a cluster that describes error conditions occur ring before the VI ex ecutes. If an error has already occu rred, th e VI returns the value of the error in cluster to error out . status i s[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-100 ni.com success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions. If the error in cluster indicated an error , the error out cluster contains the same informat[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-101 Automotive Diagnostic Command Set User Manual UDS ReportSeverityIn formationOfDTC.vi Purpose Executes the ReportSe v erityInformat ionOfDTC subfunction of the UDS ReadDiagnosticTroubleCodeInformation service. Reads selected Diagnostic Tr ouble Co[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-102 ni.com DTC mask record defines the status of DTCs to be read. The v alues are application specific. error in is a cluster that describes error conditions occurrin g before the VI ex ecutes. If an error has already occu rred , the VI retu[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-103 Automotive Diagnostic Command Set User Manual Add Data contains optional addit ional data for this DTC. success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions. If th[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-104 ni.com UDS ReportSupportedDTCs.vi Purpose Executes the ReportSupportedDTCs subfunction of the UDS ReadDiagnosticTroubleCodeInformatio n service. Reads all supported Diagnostic T rouble Codes (DTCs). Format Input DTC descriptor is a clust[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-105 Automotive Diagnostic Command Set User Manual error in is a cluster that describes error conditions occur ring before the VI ex ecutes. If an error has already occu rred, th e VI returns the value of the error in cluster to error out . status i s[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-106 ni.com success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions. If the error in cluster indicated an error , the error out cluster contains the same informat[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-107 Automotive Diagnostic Command Set User Manual UDS RequestSeed.vi Purpose Executes the UDS Security Access service to retriev e a seed from the ECU. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-108 ni.com success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions. If the error in cluster indicated an error , the error out cluster contains the same informat[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-109 Automotive Diagnostic Command Set User Manual UDS RoutineControl.vi Purpose Executes the UDS RoutineControl serv ice. Ex ecutes a routine on the ECU. Format Input mode defines the service operation mode. Y ou can obtain the values from a ring con[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-110 ni.com code is the error code number identi fying an error . A value of 0 means success. A negati v e v alue means error: the VI did not ex ecute the intended operation. A positiv e value means warning: the VI executed intended operation[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-111 Automotive Diagnostic Command Set User Manual UDS SendKey .vi Purpose Executes the Security Access service to send a ke y to the ECU. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic.vi and wired thr[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-112 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions.[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-113 Automotive Diagnostic Command Set User Manual UDS T esterPresent.vi Purpose Executes the UDS T esterPresent service. Keeps the ECU in diagnostic mode. Format Input diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-114 ni.com error out describes error conditions. If the error in cluster indicated an error , the error out cluster contains the same information. Otherwise, error out describes the error status of this VI. status is TR UE if an error occurr[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-115 Automotive Diagnostic Command Set User Manual UDS WriteDataByIdentifier .vi Purpose Executes the UDS WriteDataByIdentif ier serv ice. Writes a data record to the ECU. Format Input data in defines the data record to be written to the ECU. If you k[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-116 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions.[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-117 Automotive Diagnostic Command Set User Manual UDS WriteMemoryByAddress.vi Purpose Executes the UDS WriteMemoryBy Address serv i ce. Writes data to the ECU memory . Format Input data in defines the memory block to b e written to th e ECU. diag ref[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-118 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions.[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-119 Automotive Diagnostic Command Set User Manual OBD (On-Board Diagnostics) Ser vices OBD Clear Emission Related Diagnostic Information.vi Purpose Executes the OBD Clear Emission Related Diagnostic Informatio n service. Clears emission-related Diagn[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-120 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions.[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-121 Automotive Diagnostic Command Set User Manual OBD Request Control Of On-Board Device.vi Purpose Executes the OBD Request Control Of On-Boa rd Device service. Modifies ECU I/O port behavior . Format Input data in defi nes application-specific data[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-122 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out returns application-specifi c data for this service. success? indicates successful receipt of a positi ve response message for [...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-123 Automotive Diagnostic Command Set User Manual OBD Request Current Powert rain Diagnostic Data.vi Purpose Executes the OBD Request Current Po wertrain Diagnostic Data se rvice. Reads a data record from the ECU . Format Input diag ref in specifies [...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-124 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out returns the ECU data record. If you know the record data description, you can use Convert from Phys.vi to interpr et this recor[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-125 Automotive Diagnostic Command Set User Manual OBD Request Emission Related DTCs.vi Purpose Executes the OBD Request Emission Related DT Cs service. Reads al l emission-related Diagnostic Trouble Codes (DTCs). Format Input DTC descriptor is a clus[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-126 ni.com status i s T RU E i f a n e r r o r occurred. This VI is not ex ecuted when status is TR UE. code is the error code number identi fying an error . A value of 0 means success. A negati v e v alue means error: the VI did not ex ecut[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-127 Automotive Diagnostic Command Set User Manual success? indicates successful receipt of a positi ve response message for this diagnostic service. error out describes error conditions. If the error in cluster indicated an error , the error out clus[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-128 ni.com OBD Request Emission Related DTCs During Current Drive Cycle.vi Purpose Executes the OBD Request Emission Related DT Cs During Current Dri ve Cycle service. Reads the emission-related Diagnostic T roubl e Codes (DTCs) that occurre[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-129 Automotive Diagnostic Command Set User Manual error in is a cluster that describes error conditions occur ring before the VI ex ecutes. If an error has already occu rred, th e VI returns the value of the error in cluster to error out . status i s[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-130 ni.com For OBD, this field usually does n ot contain valid information. Add Data contains optional additional data for this DTC. Usually , this does not contain valid information (refer to D TC descriptor ). success? indicates successful[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-131 Automotive Diagnostic Command Set User Manual OBD Request On-Board Mon itoring T est Results.vi Purpose Executes the OBD Request On-Board Monitorin g T est Results service. Reads a test data record from the ECU. Format Input diag ref in specifies[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-132 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out returns the ECU data record. If you know the record data description, you can use Convert from Phys.vi to interpr et this recor[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-133 Automotive Diagnostic Command Set User Manual OBD Request Powertrain Freeze Frame Data.vi Purpose Executes the OBD Request Po wert rain Freeze Frame Data service. Reads an ECU data record stored while a Diagnostic T rouble Code occurred. Format I[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-134 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out returns the ECU data record. If you know the record data description, you can use Convert from Phys.vi to interpr et this recor[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-135 Automotive Diagnostic Command Set User Manual OBD Request Supported PIDs.vi Purpose Executes the OBD Request Current Powertrain Diagno stic Data service to r etriev e the valid PID values for this service. Format Input diag ref in specifies the d[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-136 ni.com error out describes error conditions. If the error in cluster indicated an error , the error out cluster contains the same information. Otherwise, error out describes the error status of this VI. status is TR UE if an error occurr[...]

Chapter 5 Automotive Di agnostic Command Set API for LabVIE W © National Instruments Corporation 5-137 Automotive Diagnostic Command Set User Manual OBD Request Ve hicle Information.vi Purpose Executes the OBD Request V ehicle Information se rvice. Reads a set of infor mation data from the ECU. Format Input diag ref in specifies the diagnostic ses[...]

Chapter 5 Automotive Diagnosti c Command Set API for LabVIEW Automotive Diagnostic Command Set User Manual 5-138 ni.com Output diag ref out is a copy of diag ref in . Y ou can wire it to subsequent diagnostic VIs. data out returns the vehicle information from the ECU. Y ou can obtain the description from t he SAE J1979 standard. success? indicates [...]

© National Instruments Corpor ation 6-1 Automotive Diagnost ic Command Set User Manual 6 Automotive Diagnostic Command Set API for C This chapter lists the A utomotive Diagnostic Command Set API f unctions and describes t heir format, purpose, and parameters. Unless othe rwise stated, each Automotive Diagnostic Command Set function suspends ex ecu[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-2 ni.com List of Data T ypes The following data types are used wit h the Automotive Diagnostic Command Set API f or C functions. Table 6-1. Data T ypes for the Automotive Diagnostic Co mmand Set for C Data T ype Purpose i8 8-bit signed integer i1[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corpor ation 6-3 Automotive Diagnost ic Command Set User Manual List of Functions The follo wing table contains an alphabetical list of the Automoti v e Diagnostic Command Set API functions. Table 6-2. Functions for the Automotive Diagnostic Command Set for C Function Pu[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-4 ni.com ndDisableNormalMessageTransmission Ex ecutes the DisableNormalMessage T ransmission service. The ECU no longer transmit s its regular communication messages (usually CAN messages). ndDTCToString Returns a string representation (such as P[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corpor ation 6-5 Automotive Diagnost ic Command Set User Manual ndOBDOpen Opens a diagnostic session on a CAN port for OBD-II. ndOBDRequestControlOfOnBoardDevice Ex ecutes the OBD Request Control Of On-Board Device service. Modifies ECU I/O port behavior . ndOBDRequestCu[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-6 ni.com ndOBDRequestPowertrainFreezeFrameData Ex ecutes the OBD Request Powertrain Freeze Frame Data service. Reads an ECU data record stored while a diagnostic trouble code occurred. ndOBDRequestVehicleInformation Ex ecutes the OBD Request V eh[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corpor ation 6-7 Automotive Diagnost ic Command Set User Manual ndReadStatusOfDTC Ex ecutes the ReadStatusOfDiagnostic T roubleCodes service. Reads selected Diagnostic T rouble Codes (DTCs). ndRequestRoutineResultsByLocalIdentifie r Executes the RequestRoutineResultsBy L[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-8 ni.com ndStopRoutineByLocalIdentifier Ex ecutes the StopRoutineByLo cal Identifier service. Stops a routine on the ECU. ndTesterPresent Ex ecutes the T esterPresent service. K eeps the ECU in diagnostic mode. ndUDSClearDiagnosticInformation Ex [...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corpor ation 6-9 Automotive Diagnost ic Command Set User Manual ndUDSInputOutputControlByIdentifier Ex ecutes the UDS InputOutputContro lBy Identifier service. Modifies ECU I/O port behavior . ndUDSReadDataByIdentifier Ex ecutes the UDS ReadDataByIdentifier service. Read[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-10 ni.com ndUDSReportSeverityInformationOfDTC Ex ecutes the ReportSeverity InformationOfDTC subfunction of the UDS ReadDiagnosticT rouble CodeInformation ser vice. Reads selected Diagnostic T rouble Codes (DTC s) are read. ndUDSReportSupportedDTC[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-11 Autom otive Diagnostic Command Set User Manual ndUDSWriteMemoryByAddress Ex ecutes the UDS WriteMemoryBy Address service. Writes data to the ECU memory . ndVWTPConnect Establishes a connection channel to an ECU using the VW TP 2.0. ndVWTPConnectionTest M[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-12 ni.com General Functions ndCloseDiagnostic Purpose Closes a diagnostic session. Format long ndCloseDiagnostic( TD1 *diagRefIn); Input diagRefIn Specifies the diagnostic session handle, obtained from ndOpenDiagnostic and passed to subsequent di[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-13 Autom otive Diagnostic Command Set User Manual ndConvertFromPhys Purpose Con verts a physical data value into a binary representation using a type descriptor . Format void ndConvertFromPhys( TD2 *typeDescriptor, double value, unsigned char dataOut[], lon[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-14 ni.com Output dataOut Points to the byte array to be filled with the binar y representation of value . len On input, len must contain the dataOut array length. On retu rn, it contains the number of v alid data bytes in the dataOut array . Desc[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-15 Autom otive Diagnostic Command Set User Manual ndConvertT oPhys Purpose Con verts a binary representation of a v alue into its physical value using a type descript or . Format void ndConvertToPhys( TD2 *typeDescriptor, unsigned char dataIn[], long len, d[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-16 ni.com dataIn Points to the byte array that contains the binary representation of value . len Must contain the dataIn array length. Output value The physical v alue con verted fr om the binary representation. Description Data output from diagn[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-17 Autom otive Diagnostic Command Set User Manual ndCreateExtendedCANIds Purpose Creates diagnostic CAN identifiers according to ISO 15765 -2. Format void ndCreateExtendedCANIds ( unsigned short addressingMode, unsigned short transportProtocol, unsigned cha[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-18 ni.com Output transmitID The generated CAN identifier for sending diagnostic request messages from the host to the ECU. receiveID The generated CAN identifier for sending diagnostic response messages from th e ECU to the host. Description ISO [...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-19 Autom otive Diagnostic Command Set User Manual ndDiagnosticSer vice Purpose Executes a generic diagnostic service. If a sp ecial service is not a v ailable through the KWP2000, UDS, or OBD service functions, you can build it using this function. Format l[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-20 ni.com Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the function did not perform the expect[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-21 Autom otive Diagnostic Command Set User Manual ndDTCT oString Purpose Returns a string representation (such as P1234 ) for a 2-byte diagnostic trouble code (DTC). Format void ndDTCToString( unsigned long DTCNum, char DTCString[], long *len); Input DTCNum[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-22 ni.com ndGetProperty Purpose Gets a diagnostic global internal parameter . Format void ndGetProperty( unsigned short propertyID, unsigned long *propertyValue); Input propertyID Define s the parameter whose v alue is to be retrie ved: 0 Timeout[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-23 Autom otive Diagnostic Command Set User Manual 8 Fill CAN Frames returns whether a CAN frame is transmit ted with 8 bytes or less. 0: Short CAN frames are sent with DLC < 8 (default). 1: Short CAN frames are f illed to 8 b ytes wit h Fill Byte (necess[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-24 ni.com ndOBDOpen Purpose Opens a diagnostic session on a CAN port for OBD-II. Format long ndOBDOpen ( char CANInterface[], unsigned long baudrate, unsigned long transmitID, unsigned long receiveID, TD1 *diagRefOut); Input CANInterface Specifie[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-25 Autom otive Diagnostic Command Set User Manual Description ndOBDOpen opens a diagnostic communication ch annel to an ECU for OBD-II. The CAN port specified as input is initialized, and a handle to it is stored (among other internal data) into the diagRef[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-26 ni.com ndOpenDiagnostic Purpose Opens a diagnostic session on a CAN port . Communication to the ECU is not yet started. Format long ndOpenDiagnostic( char CANInterface[], unsigned long baudrate, unsigned short transportProtocol, unsigned long [...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-27 Autom otive Diagnostic Command Set User Manual Output diagRefOut A struct co ntaining all n ecessary informatio n about the d iagnostic session. This is p assed as a handle to all subsequent diagnostic functions, and you must close it using ndCloseDiagno[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-28 ni.com ndSetProperty Purpose Sets a diagnostic global internal parameter . Format void ndSetProperty( unsigned short propertyID, unsigned long propertyValue); Input propertyID Define s the parameter whose v alue is to be mo difi ed: 0 Timeout [...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-29 Autom otive Diagnostic Command Set User Manual 8 Fill CAN Frames specifies whether a CAN frame is transmitted with 8 bytes or less. 0: Short CAN frames are sent with DLC < 8 (default). 1: Short CAN frames are f illed to 8 b ytes wit h Fill Byte (neces[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-30 ni.com ndStatusT oString Purpose Returns a description for an error code. Format void ndStatusToString( long errorCode, char message[], long *len); Input errorCode The status code (return v alue) of any other diagnostic functions. Output messa[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-31 Autom otive Diagnostic Command Set User Manual Status Code Use The application code should check the status return ed from e very Automotiv e Diagnostic Command Set function. If an er ror is detected, close all Auto m otiv e Diagnostic Command Set handle[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-32 ni.com ndVWTPConnect Purpose Establishes a connect ion channel to an ECU using the VW TP 2.0. Format long ndVWTPConnect( TD1 *diagRef, unsigned long channelID, unsigned char applicationType); Input diagRef Specifies the diagnostic session hand[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-33 Autom otive Diagnostic Command Set User Manual Description For the VW TP 2.0, you must establish a connection to the ECU before any diagnostic communication can occur . This function sets up a unique communicatio n channel to an ECU that you can use in s[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-34 ni.com ndVWTPConnectionT est Purpose Maintains a connection channel to an ECU using the VW TP 2.0. Format long ndVWTPConnectionTest( TD1 *diagRef); Input diagRef Specifies the diagnostic session handle, obtained from ndOpenDiagnostic and passe[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-35 Autom otive Diagnostic Command Set User Manual ndVWTPDisconnect Purpose T erminates a conn ection channel to an ECU using the VW TP 2.0. Format long ndVWTPDisconnect( TD1 *diagRef); Input diagRef Specifies the diagnostic session handle, ob tained from nd[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-36 ni.com KWP2000 Ser vices ndClearDiagnosticInformation Purpose Executes the ClearDiagnosticInformation service. Clears select ed Diagnostic Trouble Codes (DTCs). Format long ndClearDiagnosticInformation( TD1 *diagRef, unsigned short groupOfDTC,[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-37 Autom otive Diagnostic Command Set User Manual Description This function clears the diagnost ic information on th e ECU memory . groupOfDTC specifies the type of diagnostic trouble cod es to be cleared on the ECU memory . For further details about this s[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-38 ni.com ndControlDTCSetting Purpose Executes the ControlDTCSetting service. Modifi es the generation behavior of selected Diagnostic Trouble Codes (DTCs). Format long ndControlDTCSetting( TD1 *diagRef, unsigned short groupOfDTC, unsigned char d[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-39 Autom otive Diagnostic Command Set User Manual Output success Indicates successful receipt of a positi ve re sponse mes sage for this diagnostic service. Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-40 ni.com ndDisableNormalMessageT ransmission Purpose Executes the Dis ableNormalMessageT ransmission service. The ECU no longer transmits its regular communication message s (usually CAN messages). Format long ndDisableNormalMessageTransmiss ion[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-41 Autom otive Diagnostic Command Set User Manual ndECUReset Purpose Executes the ECUReset service. Resets the ECU. Format long ndECUReset( TD1 *diagRef, unsigned char mode, LVBoolean *success); Input diagRef Specifies the diagnostic session handle, ob tain[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-42 ni.com Output success Indicates successful receipt of a positi ve re sponse mes sage for this diagnostic service. Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed [...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-43 Autom otive Diagnostic Command Set User Manual ndEnableNormalMessageT ransmission Purpose Executes the EnableNormalMessage T ransmission service. The ECU starts transmitting it s regular communication message s (usually CAN messages). Format long ndEnabl[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-44 ni.com ndInputOutputContro lByLocalIdentifier Purpose Executes the InputOutputControlByLocalIden tif ier service. Modifies the ECU I/O port behavior . Format long ndInputOutputControlByLocalIden tifier( TD1 *diagRef, unsigned char localID, uns[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-45 Autom otive Diagnostic Command Set User Manual Output dataOut Returns application-specific data for this service. len2 On input, len2 must contain the dataOut array length. On return, it contains the number of v alid data bytes in the dataOut array . suc[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-46 ni.com ndReadDataByLocalIdentifier Purpose Executes the ReadDataByLocalIdentif ier service. Reads an ECU data record. Format long ndReadDataByLocalIdentifier( TD1 *diagRef, unsigned char localID, unsigned char dataOut[], long *len, LVBoolean *[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-47 Autom otive Diagnostic Command Set User Manual Description This function requests data record v alues from the ECU identified by the localID parameter . For further details about this service, refer to the ISO 14230-3 standard.[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-48 ni.com ndReadDTCByStatus Purpose Executes the ReadDiagnosticT roubleCodesByStatus service. Reads selected Diagnostic T rouble Codes (DTCs). Format long ndReadDTCByStatus( TD1 *diagRef, unsigned char mode, unsigned short groupOfDTC, TD3 *DTCDes[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-49 Autom otive Diagnostic Command Set User Manual DTCDescriptor A struct that describes the DTC records the ECU deli vers: typedef struct { long DTCByteLength; long StatusByteLength; long AddDataByteLength; unsigned short ByteOrder; } TD3; DTCByteLength ind[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-50 ni.com 6 testNotCompletedThisMonitori ngCycle 7 warningIndicatorRequested AddData contains optional additional data for this DTC. Usually , this does no t contain valid information (refer to DTCDescriptor ). len On input, len must contain the [...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-51 Autom otive Diagnostic Command Set User Manual ndReadECUIdentification Purpose Executes the ReadECUIdentification servi ce. Returns ECU identif ication data. Format long ndReadECUIdentification( TD1 *diagRef, unsigned char mode, unsigned char dataOut[], [...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-52 ni.com Description This function requests id entification data from the ECU. mode identif ies the type of identification data requested. The ECU returns identi fication data that dataOut can access. The dataOut format and definition are v e hi[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-53 Autom otive Diagnostic Command Set User Manual ndReadMemor yByAddress Purpose Executes the ReadMemoryBy Address servi ce. Reads data from the ECU memory . Format long ndReadMemoryByAddress( TD1 *diagRef, unsigned long address, unsigned char size, unsigne[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-54 ni.com Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the function did not perform the expect[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-55 Autom otive Diagnostic Command Set User Manual ndReadStatusOfDTC Purpose Executes the ReadStatusOfDiagnosticT roubleCo des service. Reads selected Diagnostic T rouble Codes (DTCs). Format long ndReadStatusOfDTC( TD1 *diagRef, unsigned short groupOfDTC, T[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-56 ni.com StatusByteLength indicates the number of b ytes the ECU sends for each DTC’ s status. The def ault i s 1. AddDataByteLength indicates the number of b yte s the ECU sends for each DTC’ s additional data. Usually , there are no additi[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-57 Autom otive Diagnostic Command Set User Manual len On input, len must contain the DTCs array length in elements. On return, it contains the number of valid elements in the DTCs array . success Indicates successful receipt of a positi ve re sponse mes sag[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-58 ni.com ndRequestRoutineRes ultsByLocalIdentifier Purpose Executes the RequestRoutineResultsByLocalIdenti f ier service. Returns results from an ECU routine. Format long ndRequestRoutineResultsByLocalI dentifier( TD1 *diagRef, unsigned char loc[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-59 Autom otive Diagnostic Command Set User Manual Description This function request s results (for example, exit status information) referenced by localID and generated by the routine e xecuted in the ECU memory . For further details about this service, ref[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-60 ni.com ndRequestSeed Purpose Executes the Security Access service to retrie ve a seed from the ECU. Format long ndRequestSeed( TD1 *diagRef, unsigned char accessMode, unsigned char seedOut[], long *len, LVBoolean *success); Input diagRef Speci[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-61 Autom otive Diagnostic Command Set User Manual Description The usual procedure for getting a security access to the ECU is as follows: 1. Request a seed from the ECU using ndRequestSeed with access mode = n . 2. From the seed, compute a ke y for the ECU [...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-62 ni.com ndSendKey Purpose Executes the Security Access service to send a ke y to the ECU. Format long ndSendKey( TD1 *diagRef, unsigned char accessMode, unsigned char keyIn[], long len, LVBoolean *success); Input diagRef Specifies the diagnosti[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-63 Autom otive Diagnostic Command Set User Manual Description The usual procedure for getting a security access to the ECU is as follows: 1. Request a seed from the ECU using ndRequestSeed with access mode = n . 2. From the seed, compute a ke y for the ECU [...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-64 ni.com ndStartDiagnosticSession Purpose Executes the StartDiagnosticSession service. The ECU is set up in a specific diagnostic mode. Format long ndStartDiagnosticSession( TD1 *diagRef, unsigned char mode, LVBoolean *success); Input diagRef Sp[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-65 Autom otive Diagnostic Command Set User Manual Description This function enables different ECU diagnosti c modes. The possible diagnosti c modes are not defined in ISO 14230 and are application specific. A diagnostic session starts onl y if communication[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-66 ni.com ndStartRoutineB yLocalIdentifier Purpose Executes the StartRoutineByLo calIdentif ier service. Execu tes a routine on the ECU. Format long ndStartRoutineByLocalIdentifier ( TD1 *diagRef, unsigned char localID, unsigned char dataIn[], lo[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-67 Autom otive Diagnostic Command Set User Manual Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the functi[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-68 ni.com ndStopDiagnosticSession Purpose Executes the StopDiagnosticSession service. Returns the ECU to normal mode. Format long ndStopDiagnosticSession( TD1 *diagRef, LVBoolean *success); Input diagRef Specifies the diagnostic session handle, o[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-69 Autom otive Diagnostic Command Set User Manual ndStopRoutineByLocalIdentifier Purpose Executes the StopRoutineByLocalIdentif ier service. Stops a routine on the ECU. Format long ndStopRoutineByLocalIdentifier( TD1 *diagRef, unsigned char localID, unsigne[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-70 ni.com Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the function did not perform the expect[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-71 Autom otive Diagnostic Command Set User Manual ndT esterPresent Purpose Executes the T esterPresent service. Keeps the ECU in diagnostic mode. Format long ndTesterPresent( TD1 *diagRef, LVBoolean *requireResponse, LVBoolean *success); Input diagRef Speci[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-72 ni.com The T esterPresent service is this “keep aliv e” signal. It does not af fect any other ECU operation. Keep calling ndT esterPresent within the ECU timeout period if no other ser vice is ex ecuted.[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-73 Autom otive Diagnostic Command Set User Manual ndWriteDataByLocalIdentifier Purpose Executes the WriteDataByLocalIdentif ier serv ice. Writes a data record to the ECU. Format long ndWriteDataByLocalIdentifier( TD1 *diagRef, unsigned char localID, unsigne[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-74 ni.com Description This function performs the WriteDataByLocal Identif ier service and writes RecordV alues (data values) to the ECU. dataIn identifies the data v alues to be transmitted. The vehicle manufacturer must ensure the ECU conditions[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-75 Autom otive Diagnostic Command Set User Manual ndWriteMemoryByAddress Purpose Executes the WriteMemoryBy Address servi ce. Writes data to the ECU memory . Format long ndWriteMemoryByAddress( TD1 *diagRef, unsigned long address, unsigned char size, unsign[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-76 ni.com did not perform the expected behavior . A po sitiv e v alue specifies a warning, which means the function performed as expected, but a condition arose that may require attention. Use the ndStatusToString function to obtain a descriptive[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-77 Autom otive Diagnostic Command Set User Manual UDS (DiagOnCAN) Ser vices ndUDSClearDiagnosticInformation Purpose Executes the UDS ClearDiagnostic Information service. Clears selected Diagnostic T rouble Codes (DTCs). Format long ndUDSClearDiagnosticInfor[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-78 ni.com Description This function clears the diagnostic inform ation on the ECU memory . Depending on th e value of groupOfDTC , the ECU is requested to clear the corresponding DTCs. The groupOfDTC v alues are application specific. For further [...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-79 Autom otive Diagnostic Command Set User Manual ndUDSCommunicationControl Purpose Executes the UDS CommunicationC ontrol service. Switches tran smission and/or reception of the normal communicatio n messages (usually CAN messages) on or off. Format long n[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-80 ni.com did not perform the expected behavior . A po sitiv e v alue specifies a warning, which means the function performed as expected, but a condition arose that may require attention. Use the ndStatusToString function to obtain a descriptive[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-81 Autom otive Diagnostic Command Set User Manual ndUDSControlDTCSetting Purpose Executes the UDS ControlDTCSett ing service. Modifies Diagnostic Tr ouble Code (DTC) behavior . Format long ndUDSControlDTCSetting( TD1 *diagRef, unsigned char type, unsigned c[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-82 ni.com ndUDSDiagnosticSessionControl Purpose Executes the UDS DiagnosticSessionControl se rvice. The EC U is set up in a specific diagnostic mode. Format long ndUDSDiagnosticSessionControl( TD1 *diagRef, unsigned char mode, LVBoolean *success)[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-83 Autom otive Diagnostic Command Set User Manual ndUDSECUReset Purpose Executes the UDS ECUReset service. Resets the ECU. Format long ndUDSECUReset( TD1 *diagRef, unsigned char mode, LVBoolean *success); Input diagRef Specifies the diagnostic session handl[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-84 ni.com Description This function re quests the ECU to perform an ECU reset effecti vely based on the mode parameter v alue content. The vehicle manufact urer determines when the positi ve response message is sent. Depending the value of mode ,[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-85 Autom otive Diagnostic Command Set User Manual ndUDSInputOutputControlByIdentifier Purpose Executes the UDS InputOutputControlByIdentifier service. Modifies ECU I/O port behavior . Format long ndUDSInputOutputControlByIdenti fier( TD1 *diagRef, unsigned [...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-86 ni.com Output dataOut Returns application-specific data for this service. len2 On input, len2 must contain the dataOut array lengt h. On return, it contains the nu mber of v alid data bytes in the dataOut array . success Indicates successful r[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-87 Autom otive Diagnostic Command Set User Manual ndUDSReadDataByIdentifier Purpose Executes the UDS ReadDataBy Identif ier service. Reads an ECU data record. Format long ndUDSReadDataByIdentifier( TD1 *diagRef, unsigned short ID, unsigned char dataOut[], l[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-88 ni.com Description This function requests data record v alues from the ECU identified by the ID parameter . For further details about this service, refer to the ISO 15765-3 standard.[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-89 Autom otive Diagnostic Command Set User Manual ndUDSReadMemor yByAddress Purpose Executes the UDS ReadMemoryBy Address serv ice. Reads data from the ECU memory . Format long ndUDSReadMemoryByAddress( TD1 *diagRef, unsigned long address, unsigned char siz[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-90 ni.com Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the function did not perform the expect[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-91 Autom otive Diagnostic Command Set User Manual ndUDSReportDTCBySeverityMaskRecord Purpose Executes the ReportDTCBySe verityMaskRecord subfunction of the UDS ReadDiagnosticTroubleCodeInformation service. Reads selected Diagnostic Tr ouble Codes (DTCs). Fo[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-92 ni.com AddDataByteLength indicates the number of b yte s the ECU sends for each DTC’ s additional data. For this subfunction, the default is 2. ByteOrder indicates the byte ordering for multib yte items: 0: MSB_FIRST (Motorola), default 1: L[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-93 Autom otive Diagnostic Command Set User Manual len On input, len must contain the DTCs array length in elements. On return, it contains the number of valid elements in the DTCs array . success Indicates successful receipt of a positi ve re sponse mes sag[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-94 ni.com ndUDSReportDTCByStatusMask Purpose Executes the ReportDTCByStatusMask subfunction of the UDS ReadDiagnosticTroubleCodeInformation service. Reads selected Diagnostic T rouble Codes (DTCs). Format long ndUDSReportDTCByStatusMask( TD1 *dia[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-95 Autom otive Diagnostic Command Set User Manual ByteOrder indicates the byte ordering for multib yte items: 0: MSB_FIRST (Motorola), default 1: LSB_FIRST (Intel) This function interprets the response byte stream according to this description and returns t[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-96 ni.com Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the function did not perform the expect[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-97 Autom otive Diagnostic Command Set User Manual ndUDSReportSeverityInformationOfDTC Purpose Executes the ReportSe v erityInformat ionOfDTC subfunction of the UDS ReadDiagnosticTroubleCodeInformation service. Reads selected Diagnostic Tr ouble Codes (DTCs)[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Comma nd Set User Manual 6-98 ni.com ByteOrder indicates the byte ordering for multib yte items: 0: MSB_FIRST (Motorola), default 1: LSB_FIRST (Intel) This function interprets the response byte stream according to this description and returns the resulting DTC recor ds in [...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-99 Autom otive Diagnostic Command Set User Manual Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the functi[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-100 ni.com ndUDSReportSupportedDTCs Purpose Executes the ReportSupportedDTCs subfunction of the UDS ReadDiagnosticTroubleCodeInformation service. Reads all suppo rted Diagnostic Trouble Codes (DTCs). Format long ndUDSReportSupportedDTCs( TD1 *diag[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-101 Automotive Diagnostic Command Set User Manual ByteOrder indicates the byte ordering for multib yte items: 0: MSB_FIRST (Motorola), default 1: LSB_FIRST (Intel) This function interprets the response byte stream according to this description and returns t[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-102 ni.com Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the function did not perform the expect[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-103 Automotive Diagnostic Command Set User Manual ndUDSRequestSeed Purpose Executes the UDS Security Access service to retriev e a seed from the ECU. Format long ndUDSRequestSeed( TD1 *diagRef, unsigned char accessMode, unsigned char seedOut[], long *len, L[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-104 ni.com Description The usual procedure for getting a security access to the ECU is as follows: 1. Request a seed from the ECU using ndUDSRequestSeed with access mode = n . 2. From the seed, compute a ke y for the ECU on the host. 3. Send the k[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-105 Automotive Diagnostic Command Set User Manual ndUDSRoutineControl Purpose Executes the UDS RoutineControl serv ice. Ex ecutes a routine on the ECU. Format long ndUDSRoutineControl( TD1 *diagRef, unsigned short ID, unsigned char mode, unsigned char dataI[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-106 ni.com Output dataOut Returns application-specific output parameters from the routine. len2 On input, len2 must contain the dataOut array lengt h. On return, it contains the nu mber of v alid data bytes in the dataOut array . success Indicates[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-107 Automotive Diagnostic Command Set User Manual ndUDSSendKey Purpose Executes the UDS Security Access serv ice to send a key to the ECU. Format long ndUDSSendKey( TD1 *diagRef, unsigned char accessMode, unsigned char keyIn[], long len, LVBoolean *success)[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-108 ni.com Description The usual procedure for getting a security access to the ECU is as follows: 1. Request a seed from the ECU using ndUDSRequestSeed with access mode = n . 2. From the seed, compute a ke y for the ECU on the host. 3. Send the k[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-109 Automotive Diagnostic Command Set User Manual ndUDST esterPresent Purpose Executes the UDS T esterPresent service. Keeps the ECU in diagnostic mode. Format long ndUDSTesterPresent( TD1 *diagRef, LVBoolean *requireResponse, LVBoolean *success); Input dia[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-110 ni.com The T esterPresent service is this “keep aliv e” signal. It does not af fect any other ECU operation. Keep calling ndU DSTesterPresent within the ECU tim eout period if no other service is ex ecuted.[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-111 Automotive Diagnostic Command Set User Manual ndUDSWriteDataByIdentifier Purpose Executes the UDS WriteDataByIdentif ier serv ice. Writes a data record to the ECU. Format long ndUDSWriteDataByIdentifier( TD1 *diagRef, unsigned short ID, unsigned char da[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-112 ni.com Description This function performs the UDS service Write DataByIdentifier and writes RecordV alues (data v alues) into the ECU. dataIn identif ies the data. The v ehicle manufacturer must ensure the ECU conditions are met when performin[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-113 Automotive Diagnostic Command Set User Manual ndUDSWriteMemor yByAddress Purpose Executes the UDS WriteMemoryBy Address serv i ce. Writes data to the ECU memory . Format long ndUDSWriteMemoryByAddress( TD1 *diagRef, unsigned long address, unsigned char [...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-114 ni.com did not perform the expected behavior . A po sitiv e v alue specifies a warning, which means the function performed as expected, but a condition arose that may require attention. Use the ndStatusToString function to obtain a descriptive[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-115 Automotive Diagnostic Command Set User Manual OBD (On-Board Diagnostics) Ser vices ndOBDClearEmissionRelat edDiagnosticInformation Purpose Executes the OBD Clear Emission Related Diagnostic Informatio n service. Clears emission-related diagnostic troubl[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-116 ni.com ndOBDRequestControlOfOnBoardDevice Purpose Executes the OBD Request Control Of On-Boa rd Device service. Modifies ECU I/O port behavior . Format long ndOBDRequestControlOfOnBoardDev ice( TD1 *diagRef, unsigned char TID, unsigned char da[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-117 Automotive Diagnostic Command Set User Manual Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the functi[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-118 ni.com ndOBDRequestCurrentPowertrainDiagnosticData Purpose Executes the OBD Request Current Po wertrain Di agnostic Data servic e. Reads an ECU data record. Format long ndOBDRequestCurrentPowertrainDi agnosticData( TD1 *diagRef, unsigned char [...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-119 Automotive Diagnostic Command Set User Manual Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the functi[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-120 ni.com ndOBDRequestEmissionRelatedDTCs Purpose Executes the OBD Request Emission Related DT Cs service. Reads al l emission-related Diagnostic Trouble Codes (DTCs). Format long ndOBDRequestEmissionRelatedDTCs ( TD1 *diagRef, TD3 *DTCDescriptor[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-121 Automotive Diagnostic Command Set User Manual Output DTCs Returns the resulting DTCs as an array of structs: typedef struct { unsigned long DTC; unsigned long Status; unsigned long AddData; } TD4; DTC is the resulting Diagnostic Trouble Code. F or the d[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-122 ni.com ndOBDRequestEmissionRelatedD TCsDuringCurrentDriveCycle Purpose Executes the OBD Request Emission Related DT Cs During Current Dri ve Cycle service. Reads the emission-related Diagnostic T roubl e Codes (DTCs) that occurred during the c[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-123 Automotive Diagnostic Command Set User Manual Output DTCs Returns the resulting DTCs as an array of structs: typedef struct { unsigned long DTC; unsigned long Status; unsigned long AddData; } TD4; DTC is the resulting Diagnostic Trouble Code. F or the d[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-124 ni.com ndOBDRequestOnBoardMo nitoringT estResults Purpose Executes the OBD Request On-Board Monitorin g T est Results service. Reads an ECU test data record. Format long ndOBDRequestOnBoardMonitoringTe stResults( TD1 *diagRef, unsigned char OB[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-125 Automotive Diagnostic Command Set User Manual Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the functi[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-126 ni.com ndOBDRequestPowertrainFreezeFrameData Purpose Executes the OBD Request Po wert rain Freeze Frame Data service. Reads an ECU data record stored while a diagnostic trouble code occurred. Format long ndOBDRequestPowertrainFreezeFra meData([...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-127 Automotive Diagnostic Command Set User Manual Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the functi[...]

Chapter 6 Automotive Diagnosti c Command Set API for C Automotive Diagnostic Command Set User Manual 6-128 ni.com ndOBDRequestV ehicleInformation Purpose Executes the OBD Request V ehicle Information se rvice. Reads a set of infor mation data from the ECU. Format long ndOBDRequestVehicleInformation( TD1 *diagRef, unsigned char infoType, unsigned ch[...]

Chapter 6 Automotive Diagnost ic Command Set API for C © National Instruments Corporation 6-129 Automotive Diagnostic Command Set User Manual Return V alue The return value indicates the f unction call status as a signed 32-bit integer . Zero means the function executed successfully . A negati ve v alue specifi es an error , which means the functi[...]

© National Instruments Corpor ation A-1 Automotive Diagnost ic Command Set User Manual A T echnical Support and Professional Ser vices Visit the following sections of the National Instruments Web site at ni.com for technical support an d professional services: • Support —Online technical support resources at ni.com/support include the followin[...]

© National Instruments Corpor ation I-1 Automotive Diagnost ic Command Set User Manual Index A application debugging, 3-3 application development, 3-1 Automotiv e Diagnostic Command Set API C, 6-1 LabVIEW, 5-1 API structure, 4-2 application dev elopment, 3-1 av ailable diagnostic services, 4-4 choosing a programm ing language, 3-1 configuration, 2[...]

Index Automotive Diagnostic Comma nd Set User Manual I-2 ni.com ndOBDRequestContro lOfOnBoard Device, 6-116 ndOBDRequestCurrentPowertrain DiagnosticData, 6-118 ndOBDRequestEmissionRelat edDTCs, 6-120 ndOBDRequestEmissionRelat edDTCs DuringCurrentDriv eCycle, 6-122 ndOBDRequestOnBoa rdMonitoringT est Results, 6-124 ndOBDRequestPowertrainFreeze Frame[...]

Index © National Instruments Corpor ation I-3 Automotive Diagnost ic Command Set User Manual diagnostic services KWP2000, 1-2 UDS, 1-5 diagnostic services av ailable, 4-4 diagnostic tools (NI resources), A-1 Diagnostic Trouble Codes KWP2000, 1-4 DisableNormalMessageTransmission.vi, 5-38 documentation con v entions used in manual, xi NI resources, [...]

Index Automotive Diagnostic Comma nd Set User Manual I-4 ni.com DisableNormalMessageTransmission.vi, 5-38 DTC to String.vi, 5-21 ECUReset.vi, 5-40 EnableNormalMessageT ransmission.vi, 5-42 general functions, 5-8 InputOutputControlBy LocalIdentifier .vi, 5-44 KWP2000 services, 5-32 list of VIs, 5-2 OBD (On-Board Diagnostics) services, 5-119 OBD Clea[...]

Index © National Instruments Corpor ation I-5 Automotive Diagnost ic Command Set User Manual N National Instruments support and services, A-1 ndClearDiagnosticIn formation, 6-36 ndCloseDiagnostic, 6-12 ndControlDTCSetting, 6-38 ndCon vertFromPh ys, 6-13 ndCon vertT oPhys, 6-15 ndCreateExtendedCANIds, 6-17 ndDiagnosticService, 6-19 ndDisableNormalM[...]

Index Automotive Diagnostic Comma nd Set User Manual I-6 ni.com OBD Clear Emission Related Diag nostic Information.vi, 5-119 OBD Open.vi, 5-22 OBD Request Control Of On-Board Device.vi, 5-121 OBD Request Current Powertrain Diagnostic Data.vi, 5-123 OBD Request Emission Related DTCs During Current Dri ve Cycle.vi, 5-128 OBD Request Emission Related [...]

Index © National Instruments Corpor ation I-7 Automotive Diagnost ic Command Set User Manual UDS ReportDTCBySev eri tyMaskRecord.vi, 5-95 UDS ReportDTCByStatusMask.vi, 5-98 UDS ReportSe verityInformationOfDTC.vi, 5-101 UDS ReportSupportedDTCs.vi, 5-104 UDS RequestSeed.vi, 5-107 UDS RoutineControl.vi, 5-109 UDS SendKe y .vi, 5-111 UDS T esterPresen[...]