Other Air Request: Diagnostics

WARNING: This page is about a different car, the 2003 Saab 9-3 and 2002 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

If the idling speed is too high, diagnostic trouble code P0507 will be generated.
If the idling speed is too low, diagnostic trouble code P0506 will be generated.
The difference between the requested idling speed and the current idling speed can be read with the diagnostic tool, as can whether idle speed control is active.