SAE J1699-3-2021
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SURFACE VEHICLE
RECOMMENDED PRACTICE
J1699®-3
APR2021
Issued 2012-05
Revised 2021-04
Superseding J1699-3 JUL2015
Vehicle OBD II Compliance Test Cases
RATIONALE
CARB regulation references to SAE Standards in the text were updated to reflect their recent revisions. Editorial changes
were also made.
FOREWORD
At the request of the California Air Resources Board (CARB), SAE members have generated this document to serve as a
guide for testing vehicles for compliance with U.S. Federal and CARB requirements for emission-related on-board diagnostic
functions (OBD II).
TABLE OF CONTENTS
1. SCOPE ..................................................................................................................................................... 13
2. REFERENCES ......................................................................................................................................... 13
2.1 Applicable Documents ............................................................................................................................. 13
2.2 Related Publications ................................................................................................................................ 14
2.3 Definitions ................................................................................................................................................ 15
2.4 Acronyms ................................................................................................................................................. 15
3. OVERVIEW .............................................................................................................................................. 17
3.1 Select Static Test or Dynamic Test Sequence ........................................................................................ 17
4. DIAGNOSTIC MESSAGE FORMAT AND TIMING ................................................................................. 21
4.1 Message Format ...................................................................................................................................... 21
4.2 Message Timing ....................................................................................................................................... 22
4.3 Data Not Available ................................................................................................................................... 29
5. TEST VEHICLE WITH NO MALFUNCTIONS, NO DTCS SET ............................................................... 33
5.1 Perform MIL Bulb Check, Engine Off ....................................................................................................... 33
5.2 Establish Communication (SAE J1978/ISO 15031-4), Ignition On, Engine Off ....................................... 33
5.3 Clear DTCs (Service $04), Engine Off ..................................................................................................... 34
5.4 Verify MIL Status Bit, Engine Off, Verify No Permanent DTCs................................................................ 35
5.5 Verify That All Service $06 - Request On-Board Monitoring Test Results, Engine Off ........................... 37
5.6 Verify Service $01 Data - Request Current Powertrain Diagnostic Data, Engine Off ............................. 40
5.7 Verify Service $08 - Control of On-Board System, Test or Component, Engine Off ............................... 52
5.8 Establish Communication (SAE J1978/ISO 15031-4), Engine Running .................................................. 54
5.9 Clear DTCs (Service $04), Engine Running ............................................................................................ 56
5.10 Verify Service $01 - Request Current Powertrain Diagnostic Data, Engine Running ............................. 57
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5.11 Verify Service $02 - Request Powertrain Freeze Frame Data, Engine Running ..................................... 70
5.12 Verify Service $03 - Request Emission-Related DTCs, Engine Running ................................................ 73
5.13 Verify Service $05 - Request Oxygen Sensor Monitoring Test Results, Engine Running ...................... 75
5.14 Verify Service $06 - Request On-Board Monitoring Test Results, Engine Running ................................ 75
5.15 Verify Service $07 - Request Pending Emission-Related DTCs, Engine Running ................................. 80
5.16 Verify Service $08 - Request Control of On-Board System, Test, or Component, Engine Running ....... 81
5.17 Verify Service $09 - Request Vehicle Information, Engine Running ....................................................... 83
5.18 Verify Service $01 Data in Reverse Order ............................................................................................. 127
5.19 Verify Service $01 Idle Message Timing ................................................................................................ 130
5.20 Verify Service $01 Burst Message Timing ............................................................................................. 130
5.21 Verify Reserved/Unused Services, Engine Running ............................................................................. 131
6. TEST VEHICLE AND SET A PENDING CODE BY INDUCING A FAULT ............................................ 132
6.1 Induce Circuit Fault ................................................................................................................................ 132
6.2 Establish Communication (SAE J1978/ISO 15031-4), Engine Running ................................................ 132
6.3 Verify Service $07 - Request Pending Emission-Related DTCs, Engine Off ........................................ 133
6.4 Verify Service $03 - Request Emission-Related DTCs, Engine Running .............................................. 135
6.5 Verify Service $02 - Request Powertrain Freeze Frame Data, Engine Running ................................... 136
6.6 Continue to Induce Circuit Fault (EOBD/IOBD/OBDBr Only) ................................................................ 141
7. TEST VEHICLE AND SET A CONFIRMED CODE AND MIL BY RETAINING FAULT ........................ 141
7.1 Continue to Induce Circuit Fault ............................................................................................................. 141
7.2 Establish Communication (SAE J1978/ISO 15031-4), Engine Running ................................................ 141
7.3 Verify Service $07 - Request Pending Emission-Related DTCs, Engine Running ............................... 142
7.4 Verify Service $03 - Request Emission-Related DTCs, Engine Running .............................................. 144
7.5 Verify Service $02 - Request Powertrain Freeze Frame Data, Engine Running ................................... 146
8. TEST VEHICLE WITH FAULT REPAIRED ........................................................................................... 150
8.1 Repair Circuit Fault and Complete One Driving Cycle, MIL Illuminated ................................................ 150
8.2 Establish Communication (SAE J1978/ISO 15031-4), Engine Running ................................................ 151
8.3 Verify Service $07 - Request Pending Emission-Related DTCs, Engine Running ............................... 152
8.4 Verify Service $03 - Request Emission-Related DTCs, Engine Running .............................................. 153
8.5 Verify Service $02 - Request Powertrain Freeze Frame Data, Engine Running ................................... 155
8.6 Verify Service $0A - Request Permanent Emission-Related DTCs, Engine Running ........................... 159
9. TEST VEHICLE WITH NO FAULTS AFTER THREE OR FOUR DRIVING CYCLES
COMPLETED ......................................................................................................................................... 160
9.1 Complete Two or More Additional Driving Cycles ................................................................................. 160
9.2 Establish Communication (SAE J1978/ISO 15031-4), Engine Running ................................................ 161
9.3 Verify Service $07 - Request Pending Emission-Related DTCs, Engine Running ............................... 162
9.4 Verify Service $03 - Request Emission-Related DTCs, Engine Running .............................................. 163
9.5 Verify Service $02 - Request Powertrain Freeze Frame Data, Engine Running ................................... 165
9.6 Verify Service $0A - Request Permanent Emission-Related DTCs, Engine Running ........................... 170
9.7 Complete Static Test or Continue to Permanent Code Drive Cycle ...................................................... 171
9.8 Induce Circuit Fault to Set Pending, and Confirmed DTC ..................................................................... 171
9.9 Establish Communication (SAE J1978/ISO 15031-4), Engine Off ........................................................ 172
9.10 Verify Service $03 - Request Emission-Related DTCs, Engine Off ...................................................... 173
9.11 Verify Service $0A - Request Permanent Emission-Related DTCs, Engine Off ................................... 174
9.12 Repair Circuit Fault ................................................................................................................................ 175
9.13 Establish Communication (SAE J1978/ISO 15031-4), and Clear DTCs, Engine Off ............................ 175
9.14 Verify MIL Status Bit, Engine Off ........................................................................................................... 176
9.15 Verify Service $0A - Request Permanent Emission-Related DTCs, Engine Off ................................... 177
9.16 Complete One Driving Cycle with Fault Repaired ................................................................................. 178
9.17 Establish Communication (SAE J1978/ISO 15031-4) and Request Vehicle Information,
Engine Running ...................................................................................................................................... 179
9.18 Verify Service $0A - Request Permanent Emission-Related DTCs, Engine Running ........................... 180
9.19 Complete Permanent Code Drive Cycle ................................................................................................ 181
9.20 Key on, see if permanent DTCs have been erased ............................................................................... 185
9.21 Establish Communication (SAE J1978/ISO 15031-4), Engine On ........................................................ 185
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9.22 Verify Service $0A - Request Permanent Emission-Related DTCs, Engine On ................................... 187
9.23 Clear DTCs (Service $04) ...................................................................................................................... 192
10. TEST VEHICLE WITH NO FAULTS TO VERIFY IUMPR COUNTERS,
SERVICES $06 AND $01 ...................................................................................................................... 194
10.1 Establish Communication (SAE J1978/ISO 15031-4), Ignition On, Engine Off ..................................... 194
10.2 Verify Service $01 Data - Request Current Powertrain Diagnostic Data, Engine Off ........................... 195
10.3 Verify Service $09 - Request VIN Information, Engine Off .................................................................... 196
10.4 Verify Service $01 - Request Current Powertrain Diagnostic Data, Engine Off .................................... 203
10.5 Clear DTCs (Service $04), Engine Off ................................................................................................... 203
10.6 Verify Service $01 - Request Current Powertrain I/M Readiness Data, Engine Off .............................. 204
10.7 Verify Service $06 - Request Emission-Related DTCs, Engine Off ...................................................... 205
10.8 Verify Service $07 - Request Pending Emission-Related DTCs, Engine Off ........................................ 208
10.9 Verify Service $03 - Request Emission-Related DTCs, Engine Off ...................................................... 209
10.10 Verify Service $09 - Request Vehicle Information, Engine Off .............................................................. 210
10.11 Re-Establish Communication (SAE J1978/ISO 15031-4), Engine Running (If Required) ..................... 215
10.12 Complete CARB Drive Cycle to Increment In-Use Performance Denominator ..................................... 215
10.13 Verify Service $01 - Request Current Powertrain Diagnostic Data, Engine Running ........................... 221
10.14 Verify Service $09 - Request Vehicle Information, Engine Running ..................................................... 234
11. TEST VEHICLE WITH NO FAULTS TO VERIFY IUMPR COUNTERS, SERVICE $06,
I/M READINESS .................................................................................................................................... 238
11.1 Re-Establish Communication (SAE J1978/ISO 15031-4), Engine Running (If Required) ..................... 238
11.2 Complete Manufacturer Drive Cycle and Clear I/M Readiness Bits ...................................................... 243
11.3 Turn Engine Off to Allow Drive Cycle Data to Be Collected. ................................................................. 247
11.4 Re-Establish Communication (SAE J1978/ISO 15031-4), Ignition On, Engine Off (If Required) .......... 247
11.5 Verify Service $01 - Request Current Powertrain Diagnostic Data, Engine Off .................................... 248
11.6 Verify Service $06 - Request on-Board Monitoring Test Results, Engine Off ....................................... 249
11.7 Verify Service $09 - Request Vehicle Information, Engine Off .............................................................. 252
11.8 Verify Service $01 - Request Current Powertrain I/M Readiness Data, Engine Off .............................. 257
11.9 Verify Service $03 - Request Emission-Related DTCs, Engine Off ...................................................... 258
11.10 Verify Service $07 - Request Pending Emission-Related DTCs, Engine Off ........................................ 259
11.11 Clear DTCs (Service $04), Engine Off ................................................................................................... 260
11.12 Verify Service $09 - Request Vehicle Information, Engine Off .............................................................. 261
12. NOTES ................................................................................................................................................... 265
12.1 Revision Indicator ................................................................................................................................... 265
Figure 1 Conditions and services tested ................................................................................................................ 17
Figure 2 Diagnostic message format for ISO 9141-2, ISO 14230-4, and SAE J1850 ........................................... 21
Figure 3 Diagnostic message format for ISO 15765-4 ........................................................................................... 21
Figure 4 CAN 11 bit identifiers ............................................................................................................................... 22
Figure 5 CAN 29 bit identifiers ............................................................................................................................... 22
Figure 6 Message response times ......................................................................................................................... 23
Figure 7 ISO 9141-2 and ISO 14230-4 protocol client and server timing behavior ............................................... 24
Figure 8 Functional OBD communication - default response timing ...................................................................... 26
Figure 9 Functional OBD communication - enhanced response timing ................................................................. 27
Table A Proper response from ECU ...................................................................................................................... 29
Table B Proper response from ECU for ISO 15765-4 ........................................................................................... 31
Table 1 Request current powertrain diagnostic data request message for all protocols ...................................... 33
Table 2 ECU# x response: Request current powertrain diagnostic data response message .............................. 33
Table 3 Clear/reset emission-related diagnostic information request message for all protocols ......................... 34
Table 4 Clear/reset emission-related diagnostic information response message ................................................ 35
Table 5 Request current powertrain diagnostic data request message for all protocols ...................................... 35
Table 6 ECU#1 response: Request current powertrain diagnostic data response message ............................... 35
Table 7 Request emission-related diagnostic trouble codes with permanent status ............................................ 36
Table 8 Request emission-related diagnostic trouble codes with permanent status response message
for ISO 15765-4 ........................................................................................................................................ 36
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摘要：
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SAE J1699-3-2021 是由美国汽车工程师学会发布的最新版本车载诊断（OBD）通信协议标准，旨在规范车辆与诊断设备之间的数据交换方式。该标准主要针对符合美国环保署（EPA）和加州空气资源委员会（CARB）要求的乘用车和轻型卡车，定义了基于控制器局域网（CAN）总线的诊断服务、数据帧格式、网络层要求以及车辆识别码（VIN）和故障码（DTC）的获取流程。与早期版本相比，2021版更新了对新型排放控制系统、混合动力及电动车诊断功能的支持，同时提高了通信安全性和兼容性，确保维修技术人员和诊断工
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