Camshaft Position Sensor: Testing and Inspection

Sensor Inspection:

1. Remove camshaft Position sensor from engine, leaving electrical harness connected.
2. Visually inspect signal plate for dirt or physical damage.
3. Disconnect power transistor electrical connector.

Sensor Testing:

4. Turn ignition on.
5. Using a DVOM, carefully backprobe connector terminals A and B individually while rotating sensor by hand.

Voltage varies between 1 and 5 volts, sensor normal. End of test.
Voltage does not vary between 1 and 5 volts, replace camshaft position sensor.