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2. Location Diagram of Vehicle Diagnostic Link Connectors
Location diagram of pick-up truck diagnostic link connectors:
Location diagram of utility vehicles diagnostic link connectors:
Link diagram of small car diagnostic link connectors:
NOTE: Each vehicle manufacturer may use additional pins to diagnose a variety of
systems. Not every manufacturer uses the same standard. The function on a certain
pin will vary from manufacturer to manufacturer. Verify with the manufacturer.
3. Diagnostic Link Connectors Terminal Definition and Communication Protocols
3.1. Standard OBDII Diagnostic Link Connector:
Pin Definition
(Reference material)
various pin definitions as follows:
1. Manufacturer definition
2. SAE J1850 bus positive
3. Manufacturer definition
4. Bodywork site
5. Signal site