Operation CHARM: Car repair manuals for everyone.
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Component Tests and General Diagnostics

CAMSHAFT POSITION SENSOR

The CMP sensor senses the camshaft position on compression stroke of the No.1 cylinder, converts it into a pulse signal, and inputs it to the ECM. The ECM then computes the fuel injection sequence, etc. based on the input signal.

Circuit Diagram:






Harness Inspection Procedure:






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