Test Description
WARNING: This page is about a different car, the 2003 Pontiac Grand Am, 2003 Oldsmobile Alero, 2003 Chevrolet Monte Carlo, and 2003 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers in the diagnostic procedure.
- 3 - A fault in the 12-volt reference circuit of the 24X CKP sensor or the CMP sensor can cause this DTC to set.
- 6 - Tapping on the engine block will simulate an engine knock.