Circuit Description
WARNING: This page is about a different car, the 1997 GMC Pickup and 1997 Chevrolet Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Camshaft Position (CMP) sensor is used to indicate camshaft position so that VCM can determine which cylinder is misfiring when misfire is present. Sensor also checks if high voltage switch is properly installed.
DTC will set when the following conditions are present:
- Engine running and camshaft position sensor reference pulse is not seen once every 2 revolutions of crankshaft.