改进的EE诊断测试方式英文(pdf 63页)

TABLE OF CONTENTS
1. Scope ........................................................................... 4
2. References ....................................................................... 4
2.1.1 SAE Publications ................................................................... 4
2.1.2 ISO Publications ................................................................... 4
2.1.3 California ARB Documents........................................................... 4
2.1.4 Federal EPA Documents ............................................................. 4
3. Definitions........................................................................ 4
4. Technical Requirements .............................................................. 5
4.1 Test Mode Values .................................................................. 5
4.2 Physical Addressing ................................................................ 6
4.3 Miscellaneous Requirements .......................................................... 6
4.3.1 Message Response Time............................................................. 6
4.3.2 Automatic Return to Normal Operation .................................................. 7
4.3.3 Diagnostic Message Length ........................................................... 7
4.3.4 Message Response................................................................. 7
5. Test Modes ....................................................................... 8
5.1 Modes $00 through $0F - Physically Addressed SAE J1979 Messages......................... 8
5.2 Mode $10 - Initiate Diagnostic Operation ................................................. 9
5.2.1 Functional Description............................................................... 9
5.2.2 Message Data Bytes ................................................................ 9
5.3 Mode $11 - Request Module Reset..................................................... 9
5.3.1 Functional Description............................................................... 9
5.3.2 Message Data Bytes ............................................................... 10
5.4 Mode $12 - Request Diagnostic Freeze Frame Data ....................................... 10
5.4.1 Functional Description.............................................................. 10
5.4.2 Message Data Bytes ............................................................... 11
5.5 Mode $13 - Request Diagnostic Trouble Code Information.................................. 11
5.5.1 Functional Description.............................................................. 11
5.5.2 Message Data Bytes ............................................................... 13
5.6 Mode $14 - Clear Diagnostic Information ................................................ 14
5.6.1 Functional Description ..............................................................14
5.6.2 Message Data Bytes...............................................................15
5.4.7 Mode $17 - Request Status of Diagnostic Trouble Codes ...................................16
5.7.1 Functional Description ..............................................................16
5.7.2 Message Data Bytes...............................................................17
5.8 Mode $18 - Request Diagnostic Trouble Codes by Status ...................................18
5.8.1 Functional Description ..............................................................18
5.8.2 Message Data Bytes...............................................................19
5.9 Mode $20 - Return to Normal Operation ................................................20
5.9.1 Functional Description ..............................................................20
5.9.2 Message Data Bytes...............................................................20
5.10 Modes $21 to $23 - Request Diagnostic Data ............................................21
5.10.1 Functional Description ..............................................................21
5.10.2 Mode $21 Message Data Bytes.......................................................22
5.10.3 Mode $22 Message Data Bytes.......................................................23
5.10.4 Mode $23 Message Data Bytes.......................................................24
5.11 Mode $24 - Request Scaling and Offset / PID ............................................25
5.11.1 Functional Description ..............................................................25
5.11.2 Message Data Bytes...............................................................25
5.11.3 Scaling Byte 1....................................................................26
5.11.4 Scaling Byte 2....................................................................27
5.11.5 Scaling Bytes 3 to n ................................................................27
5.12 Mode $25 - Stop Transmitting Requested Data ...........................................28
5.12.1 Functional Description ..............................................................28
5.12.2 Message Data Bytes...............................................................28
5.13 Mode $26 - Specify Data Rates.......................................................29
5.13.1 Functional Description ..............................................................29
5.13.2 Message Data Bytes...............................................................29
5.14 Mode $27 - Security Access Mode .....................................................30
5.14.1 Functional Description ..............................................................30
5.14.2 Message Data Bytes...............................................................31
5.15 Mode $28 - Disable Normal Message Transmission........................................32
5.15.1 Functional Description ..............................................................32
5.15.2 Message Data Bytes...............................................................32
5.16 Mode $29 - Enable Normal Message Transmission ........................................33
5.16.1 Functional Description ..............................................................33
5.16.2 Message Data Bytes...............................................................33
5.17 Mode $2A - Request Diagnostic Data Packet(s)...........................................33
5.17.1 Functional Description ..............................................................33
5.17.2 Message Data Bytes...............................................................34
5.18 Mode $2B - Dynamically Define Data Packet by Single Byte Offsets ...........................35
5.18.1 Functional Description ..............................................................35
5.18.2 Message Data Bytes...............................................................35
5.18.3 Message Example .................................................................36
5.19 Mode $2C - Dynamically Define Diagnostic Data Packet ....................................37
5.19.1 Functional Description ..............................................................37
5.19.2 Message Data Bytes...............................................................38
5.19.3 Message Example .................................................................39
5.20 Mode $2F - Input/Output Control by PID ................................................41
54.20.1 Functional Description ..............................................................41
5.20.2 Message Data Bytes...............................................................41
5.21 Mode $30 - Input/Output Control by Data Value ID ........................................42
5.21.1 Functional Description ..............................................................42
5.21.2 Message Data Bytes...............................................................42
5.22 Modes $31 to $33 - Perform Diagnostic Routine by Test Number .............................43
5.22.1 Functional Description ..............................................................43
5.22.2 Message Data Bytes...............................................................44
5.23 Modes $34 to $37 - Data Transfer .....................................................46
5.23.1 Functional Description ..............................................................46
5.23.2 Message Data Bytes...............................................................46
5.24 Modes $38 to $3A - Perform Diagnostic Routine at a Specified Address........................48
5.24.1 Functional Description ..............................................................48
5.24.2 Message Data Bytes...............................................................48
5.25 Mode $3B - Write Data Block.........................................................50
5.25.1 Functional Description ..............................................................50
5.25.2 Message Data Bytes...............................................................51
5.26 Mode $3C - Read Data Block .........................................................52
5.26.1 Functional Description ..............................................................52
5.26.2 Message Data Bytes...............................................................52
5.27 Mode $3F - Test Device Present (no operation performed) ..................................53
5.27.1 Functional Description ..............................................................53
5.27.2 Message Data Bytes...............................................................53
5.28 Mode $7F - General Response Message ................................................54
5.28.1 Functional Description ..............................................................54
5.28.2 Message Data Bytes...............................................................54
5.28.3 Message Examples ................................................................55
5.28.4 Response Codes ..................................................................56
Appendix A -Diagnostic Test Mode Assignments....................................................61
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