Camshaft Position Sensor: Testing and Inspection

Camshaft position sensor (CMP Sensor) senses the TDC point of No.1 cylinder in its compression stroke, whose signals are fed to the ECM to be used to determine the sequence of fuel injection.

Circuit Diagram:

Harness Inspection Procedure (Step 1 - 3):

Troubleshooting Procedures:

TROUBLESHOOTING HINTS
If the camshaft position sensor does not operate correctly, correct sequential injection does not occur so the engine may stall or run irregularly at idle or fail to accelerate normally.

Using Voltmeter: