• ISO 9141-2 - Communication Link
• ISO 11519-4 - Low speed serial data communication
• ISO 14230-4 - Keyword protocol 2000
• ISO 15765-4 - CAN-Requirements for emission-related systems
• ISO 15031-3 - Diagnostic connector
• ISO 15031-4 - Test tool characteristics
• ISO 15031-5 - Diagnostic services
• ISO 15031-6 - Emission related fault codes (DTC)
• ISO 15031-7 - Data link security

Here is survey of some important ISO and SAE specifications:

• ISO 9141 - Road vehicles - Diagnostic systems - Requirements for interchange of digital information, issued in 1989
• ISO 9141-2 - CARB requirements for interchange of digital information, 1994 and addendum 1996
• ISO 9141-3 - Road vehicles - Verfication of the communication between vehicle and OBDII scan tool
• ISO/DIS 14230-1 - Road Vehicles-Diagnostic System-Keyword Protocol 2000, Physical Layer
• ISO/DIS 14230-2 - Road Vehicles-Diagnostic System-Keyword Protocol 2000, Data Link Layer
• ISO/DIS 14230-3 - Road Vehicles-Diagnostic System-Keyword Protocol 2000, Application Layer
• ISO 15031-1 - Road vehicles - Communication between vehicle and external test equipment for emissions-related diagnostics, General information, 2001
• ISO/DIS 14230-4 - Road Vehicles-Diagnostic System-Keyword Protocol 2000, Requirements for emission-related systems
• SAE J1850 - Class B Data Communications Network Interface, 2001
• SAE J1930 - Electrical/Electronic Systems Diagnostic Terms, Definitions, Abbreviations and Acronyms, related to ISO/TR 15031-2, April 2002
• SAE J1962 - Diagnostic Connector, related to ISO/DIS 15031-3, Dec 2001
• SAE J1978 - OBD II Scan Tool, related to ISO/DIS 15031-4, Dec 2001
• SAE J1979 - Diagnostic Test Modes, related to ISO/DIS 15031-5, April 2002
• SAE J2012 - Diagnostic Trouble Code Definitions, related to ISO/DIS 15031-6, April 2002
• SAE J2190 - Enhanced Diagnostic Test Modes
• SAE J2178 - Class B data communication network messages
• ISO/DIS 14229 - Road Vehicles-Diagnostic System-Diagnostic Services Specification
• ISO 15765-2 - Road vehicles - Diagnostics on Controller Area Network (CAN), Network layer services
• ISO 15765-4 - Road vehicles - Diagnostics on Controller Area Network (CAN), Requirements for emissions-related systems
• ISO 11519-2 - Road vehicles - Low speed serial data communication - Low speed controller area network (CAN), 1994
• ISO 11519-3 - Road vehicles - Low speed serial data communication - Vehicle area network (VAN), 1994
• ISO 11898 - Road vehicles - Interchange of digital information - Controller area network (CAN) for high-speed communication, 1993
• SAE J1939 - Recommended Practise for Control and Communications Network (Class C) on Truck and Bus Applications
• SAE J1939/01 - Recommended Practise for Control and Communications Network on Truck and Bus Applications
• SAE J1939/11 - Physical Layer, 250k bits/sec, Shielded Twisted Pair
• SAE J1939/21 - Data Link Layer
• SAE J1939/31 - Network Layer
• SAE J1939/71 - Vehicle Application Layer
• SAE J1939/73 - Application Layer - Diagnostics
• SAE J1939/81 - Network Management Protocol