On-Board Diagnostics

Type of diagnosis: 

• Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

Enable criteria: 

• General condition for this diagnostic trouble code: Atmospheric pressure must exceed 72 kPa as well as coolant and intake air temperature must exceed -7°C.
• Engine running. Car stationary. Accelerator pedal fully released. Engine load lower than 225 mg/c. Idle speed control requesting greatest possible air mass per combustion.

Fault criteria: 

• Engine speed more than 100 RPM lower than the requested idling speed for 10 sec.

Dependents: 

• P0501 , P0502 , P1230 , P1530 , P1531  and P1532 .

System reaction to a fault: 

• None.

OK report: 

• Diagnosis performed once and fault criteria not fulfilled.

Fault handling:  (For more information, see FAULT HANDLING III, OTHER EMISSION-RELATED COMPONENTS AND FUNCTION ).

• Type III.