ISO 9141-2:1994, Road vehicles — Diagnostic systems — Part 2: CARB requirements for interchange of digital information
2 Normative references
ISO 7637-1:1990, Road vehicles — Electrical disturbance by conduction and coupling — Part 1: Passenger cars and light commercial vehicles with nominal 12 V supply voltage — Electrical transient conduction along supply lines only.
ISO 9141:1989, Road vehicles — Diagnostic systems — Requirements for interchange of digital information.
SAE J1962, Diagnostic Connector.
SAE J1978, OBD II Scan Tool.
SAE J1979, E/E Diagnostic Test Modes.
SAE J2012, Format and Messages for Diagnostic Trouble Codes.
California Code of Regulation, Title 13, 1968.1, Malfunction and Diagnostic Systems Requirements.
California Air Resources Board
1 Scope
This part of ISO 9141 describes a subset of ISO 9141:1989. It specifies the requirements for setting up the interchange of digital information between on-board emission-related Electronic Control Units (ECUs) of road vehicles and the SAE OBD II scan tool as specified in SAE J1978. This communication is established to facilitate compliance with California Code of Regulation, Title 13, 1968.1, Malfunction and Diagnostic Systems Requirements, 1994 and subsequent model year passenger cars, light-duty trucks, and medium duty vehicles with feedback fuel control systems.
This part of ISO 9141 is limited to vehicles with nominal 12 V supply voltage.
content
1 Scope
2 Normative references
3 Definitions
4 Specific configurations
5 Signal and communication specifications
5.1 Signal
5.2 Communication specification
6 Initialization of vehicle prior to serial communication
7 Initialization header
7.1 Purpose
7.2 Transmission of speed synchronization pattern
7.3 Key word format
7.4 Time requirements
8 Requirements of diagnostic tester
8.1 Standard connector
8.2 Minimum functional capabilities
8.3 Electrical specifications
9 Requirements of ECU
9.1 Input and output lines
9.2 Electrical specifications
9.3 Minimum functional capabilities
10 Requirements of wiring
11 Subsequent communication protocol
11.1 OBD II communications
11.2 Checksum definition
11.3 Number, type and content of messages
11.4 Fault codes
12 Message timing
13 Error handling
13.1 Initialization
13.2 Subsequent communication14 Worked example
Annex A Tables of initialization, head
参考資料
@kazuo_reve 自動車の故障診断に関連するプログラマーになりたての方が参照するとよさそうな情報
@kazuo_reve AUTOSARのClassic PlatformとAdaptive PlatformにおけるDiagnosticsの違いを整理
自己参照
ISO Road vehicles Diagnostics 規格調査中 100規格、100記事をめざして。
ISO Diagnostics 文献（Normative Reference and Bibliography）集め
ISO Diagnostics 用語定義(Terms and Definition)と短縮名(short name)集め
ISO/IEC OSIに学ぶ
ISO 14229-1:2020 Road vehicles — Unified diagnostic services (UDS) — Part 1: Application layer
国際規格のNormative Reference
@kazuo_reveさんの「自動車の故障診断に関連するプログラマーになりたての方が参照するとよさそうな情報」の読み方
@kazuo_reve「AUTOSARのClassic PlatformとAdaptive PlatformにおけるDiagnosticsの違いを整理」で慌てて
＜この記事は個人の過去の経験に基づく個人の感想です。現在所属する組織、業務とは関係がありません。＞
文書履歴
ver. 0.01 初稿 20220206