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 -7C.
• 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, see FAULT HANDLING III, OTHER EMISSION-RELATED COMPONENTS AND FUNCTION ).

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