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 temperature 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: Fault Handling III, Other Emission-Related Comp. & Function
- 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.