Camshaft Position Sensor: Testing and Inspection

CAMSHAFT POSITION SENSOR
Operational Inspection:
1. Remove the distributor.
2. Remove the ECM.




3. Connect the SSTs (Monitor, Engine signal and Adapter Harness) to the ECM.
4. Turn the ignition switch to ON.




5. Rotate the distributor drive by hand and check the output signal.




6. If not as specified, inspect following:

Harness continuity
- Between ECM terminal 4G and distributor (6-pin) terminal D
- Between ECM terminal 4A and distributor (6-pin) terminal A
- Between main relay terminal D and distributor (6-pin) terminal B

Terminal voltage
- Distributor (6-pin) terminal B: Battery positive voltage

7. If there is incorrect terminal voltage or harness continuity, replace the distributor assembly.