Conditions for Setting the DTC: P0506
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the actual idle speed is approximately 90 RPM lower than the desired idle speed continuously.
- The above condition is present for 3 tests consisting of 8 seconds each test.