Conditions for Setting the DTC

WARNING: This page is about a different car, the 2009 Saturn Vue. 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 mass air flow (MAF) sensor is more than 3 g/s, or by sensing crankshaft position (CKP) sensor pulses.

The ECM detects that the engine has started, but has received either of the following during the first engine revolution:
- Less than or more than 4 CMP sensor pulses, if equipped with an automatic transmission
- Less than 4 or more than 8 CMP sensor pulses, if equipped with a manual transmission
  OR
The ECM detects that the engine is running, but receives less than 398 CMP or more than 402 CMP sensor pulses per 100 engine cycles in 800 of 1,000 engine cycles.