T8 / P0506 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general) Higher idling speed.

P0506 00

Fault symptom

Fault indicator lamp (for further information see WIS Fault diagnosis, general)

Higher idling speed.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Engine running.

Accelerator pedal released.

Vehicle speed 0 km/h.

Engine load less than 225 mg/c.

Fault criteria:

Engine speed below requested idling speed by more than 100 rpm for more than 10 s.

Dependent:

None

System reaction to a fault:

Control module continues working with the higher idling function.

OK report:

Fault criteria NOT fulfilled for 11 s.

Fault handling:

Type III

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

Diagnostic help

Diagnosis regards:

Blocked throttle, blocked air supply, short engine mechanical fault.

Functions in the diagnostic tool related to the fault:

Test value:

•	Engine RPM

(See also description of readings/activations in diagnostic tool)