OBD LensGeneral Motors diagnostic reference
Explore 1 connection profiles and 14 enhanced definition variants recorded for General Motors. Reference relationships describe the library, not road-test coverage.
Vehicle and connection profiles
- Simtec 56.5General Motors
Enhanced PID meanings
Browse individual signal meanings, units and exact profile links.
Browse General Motors enhanced signalsTrouble-code reference families
Chevrolet / Citroen / General Motors / Opel / Peugeot — Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.
Source and applicability
OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.
Read the reference methodOBD Lens reference library · catalog legacy-owner-2026-10-09-v81. Sources and scope