Diagnostic Aids

WARNING: This page is about a different car, the 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

If DTC P0335 is also set, diagnose that DTC first. See DTC P0335: CRANKSHAFT POSITION SENSOR CIRCUIT .

The engine will still run if White/Black wire is open with engine speed more than 2500 RPM. If less than 2500 RPM, the engine will stall. The engine will not run if Purple/White wire is open.

If an erratic or intermittent circuit fault is occurring under 2500 RPM, the engine will cut out. Use scan tool to monitor ENGINE SPEED while running engine. Wiggling wires while watching for ENGINE SPEED to drop out may locate the area where an open anywhere in the circuit or short to voltage on Purple/White wire may exist.

A short to ground on either circuit Purple/White wire or White/Black wire will not affect the CKP sensor signal to the ECM and will not set any CKP sensor circuit DTCs.