DTC P0340: Camshaft Position Sensor: Description
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
The camshaft position (CMP) sensor produces a 6X plus a sync signal for each revolution of the camshaft. These signals are for control of sequential fuel injection and for exhaust camshaft phaser control. The CMP is connected directly to the Powertrain Control Module (PCM) and consists of the following circuits:
- 12-volt reference.
- Low reference.
- CMP sensor signal.