P0507 Chevrolet Uplander I

1. The ECM detects that the actual idle speed is approximately 150 RPM higher than desired idle speed.
2. The above conditions is present for 3 tests consisting of 8 seconds each.

Action Taken When the DTC Sets

1. The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.
2. The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame and/or the Failure Records.
3. The control module commands the TAC system to operate in the Reduced Engine Power mode.
4. A message center or an indicator displays Reduced Engine Power.
5. Under certain conditions the control module commands the engine OFF.