Conditions for Setting the DTC
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
The ECM detects engine movement by sensing the airflow through the MAF sensor, when airflow is greater than 3 grams per second, or by sensing camshaft position (CMP) sensor pulses.
- The ECM detects that the starter is commanded on and the engine has been cranking for more than 3 seconds without a CKP sensor pulse.
- The ECM detects that the engine is running, but has not received a CKP sensor pulse for 2 of 10 engine cycles.