SAAB WIS ONLINE

P0506

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE. Slow idling speed.

P0506


Idle Speed Control. Idling Speed too Low.


Fault symptoms


CHECK ENGINE.

Slow idling speed.


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: Atmospheric 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. Engine load lower than 225 mg/c. Idle speed control requesting greatest possible air mass per combustion.


Fault criteria:


- Engine speed is more than 100 rpm lower 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.

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 the description of readings under Menu "Read Values" for more information.