Conditions for Setting the DTC
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects a signal from the CMP sensor, but the number of pulses are at least 5 less than or more than what is expected for one crankshaft revolution.
OR
- The CMP sensor does NOT correlate to the crankshaft position.
- Either condition exists for more 4 seconds.