Conditions

CHECK ENGINE. Request (Bus from TCM).





Fault symptoms
- Automatic transmission not shifting gear.
- CHECK ENGINE.
- CHECK GEARBOX.

On-Board Diagnostics

Type of diagnosis:
- Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

Enable criteria:
- General conditions for this trouble code: When starting the engine, the atmospheric pressure must exceed 78 kPa and the engine coolant and intake air temperatures must exceed -7 °C.
- Engine running.

Fault criteria:
- TCM requesting CHECK ENGINE.

Dependents:
- None.

System reaction to a fault:
- None.

OK report:
- When TCM no longer requesting CHECK ENGINE.

- CHECK ENGINE goes out and trouble code cleared immediately when TCM no longer requests CHECK ENGINE.

Diagnostic help
Perform fault diagnosis on the automatic transmission.

Proceed to Diagnostic Procedures Diagnostic Procedures