E/E DIAGNOSTIC TEST MODES
- Ground Vehicle Standard
- J1979_199709
- Revised
Scope
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a
Mode $01—Request Current Powertrain Diagnostic Data
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Analog inputs and outputs
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Digital inputs and outputs
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System status information
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Calculated values
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-
b
Mode $02—Request Powertrain Freeze Frame Data
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Analog inputs and outputs
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Digital inputs and outputs
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System status information
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Calculated values
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c
Mode $03—Request Emission-Related Powertrain Diagnostic Trouble Codes
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d
Mode $04—Clear/Reset Emission-Related Diagnostic Information
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e
Mode $05—Request Oxygen Sensor Monitoring Test Results
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f
Mode $06—Request On-Board Monitoring Test Results for Non-Continuously Monitored Systems
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g
Mode $07—Request On-Board Monitoring Test Results for Continuously Monitored Systems
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h
Mode $08—Request Control of On-Board System, Test, or Component
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i
Mode $09—Request Vehicle Information
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a
Functional descriptions of test mode
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b
Request and response message formats
Recommended Content
| Technical Paper | Differences between On Board Diagnostic Systems (EOBD, OBD-II, OBD-BR1 and OBD-BR2) |
| Ground Vehicle Standard | Vehicle OBD II Compliance Test Cases |
Topic
Data Sets - Support Documents
Issuing Committee
Vehicle E E System Diagnostic Standards Committee
The committee shall increase customer satisfaction and lower product life cycle costs by investigating and recommending standards that will promote more effective diagnosis of vehicle electrical and electronic system problems. The resulting recommended practices will focus on model year 1992 and beyond. However, they may be useful for prior vehicle diagnosis/repair and may serve as a basis for additional recommended practices and pre-model year 1992 vehicles.Vision Statement: A standard disgnostic connector (in a standard location) will be in all vehicles. Pin assignments for a portion of the connector will also be standardized.All vehicles will implement a set of industry standard diagnostic test modes that can be executed over a standard communication data line (i.e., SAE J1850, ISO 9141-2). Industry standard test information will be associated with some of these diagnostic test modes.An OBD II scan tool will be able to utilize a minimum set of standardized diagnostic test modes and test information.A system will be in place that will allow standard electronic access of all E/E diagnostic service information. Future diagnostic legislation will be in harmony with this vision and the resulting SAE Recommended Practices.
Reference
| Number | Title |
|---|---|
| ISO 15031-5 | This document is not part of the subscrption. |
| ISO 15765-2 | This document is not part of the subscrption. |
| ISO 15765-4 | This document is not part of the subscrption. |
| ISO 9141-2 | This document is not part of the subscrption. |
| ISO14230-4 | This document is not part of the subscrption. |
| J1850_201510 | Class B Data Communications Network Interface |
| J1930_201703 | Electrical/Electronic Systems Diagnostic Terms, Definitions, Abbreviations, and Acronyms - Equivalent to ISO/TR 15031-2 |
| J1962_201509 | Diagnostic Connector |
| J1978_202205 | OBD-II Scan Tool |
| J2012_201303 | Diagnostic Trouble Code Definitions |
| J2012_201612 | Diagnostic Trouble Code Definitions |
| J2186_201907 | E/E Data Link Security |
| J2190 | This document is not part of the subscrption. |