Fault Conditions

P1624

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.

Fault handling: (For more information, Description of On-Board Diagnostics)

- 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.