Lumina V6-3.1L VIN J (2000)
Camshaft Position Sensor: Description and Operation
Camshaft Position (CMP) Sensor
General Description
The camshaft position sensor is located on the timing cover behind the water pump near the camshaft sprocket. As the camshaft sprocket turns, a magnet
in it activates the Hall-effect switch in the camshaft position sensor. When the Hall-effect switch is activated, it grounds the signal line to the PCM,
pulling the camshaft position sensor signal circuit's applied voltage low. This is interpreted as a CAM signal.
The CAM signal is created as piston #1 is on the intake stroke. If the correct CAM signal is not received by the PCM, DTC P0341 will be set.
Circuit Description
