P0507

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE. Fast idling speed.

P0507

Fault symptoms

•	CHECK ENGINE.

•	Fast idling speed.

Important

Check the crankcase ventilation for leaks before performing any other fault diagnosis.

See Inspection of crankcase ventilation hoses

DTCs P0101, P0106, P0300, P0455 and P1300 can be generated as a result of the DTCs above when the cause of the DTC is a leak in the crankcase ventilation. Once the leak has been rectified, the other DTC can be deleted.

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: Barometric pressure must exceed 72 kPa and the engine coolant and intake air temperatures must exceed -7°C.

-	Engine running. Car stationary. Accelerator pedal fully released. Idle speed control requesting smallest possible air mass per combustion.

Fault criteria:

-	Engine speed more than 200 rpm higher than the requested idling speed for 10 s.

Dependents:

-	P0501, P0502, P1230, P1530, P1531, P1532 and P1925.

System reaction to a fault:

-

None.

OK report:

-	Diagnosis performed once and fault criteria not fulfilled.

Fault handling: (See section Fault handling III, other emission-related components and functions for more information.)

-

Type III.

Diagnostic help

If other codes have been generated, check whether fault diagnosis should start with any of them. Then, check whether the throttle is in limp-home mode and finally check whether there is an air leak after the throttle.

Functions in the diagnostic tool related to the fault:

•	Diagnostic status for the diagnosis.

•	Idle speed control, unit ON/OFF.

•	Idling speed difference, unit rpm.

See also description of read value under "Read Values" menu for more information.