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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Engine Controls - Self-Diagnostics - 4.0L) >> Diagnostic Tests >> DTC P0335: Crankshaft Position Sensor "A" Circuit >> Diagnostic Aids

Diagnostic Aids

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

If condition is intermittent, see INTERMITTENT CONDITIONS  under SELF-DIAGNOSTIC SYSTEM.

Ignition system DTCs set with the ignition in the START position if the starter relay or the starter is inoperative. When the PCM enables starter operation, the PCM also initiates the diagnostic test routines for DTCs P0335, P0340, and P0385. The PCM will not receive signal input from the CKP and CMP sensors if a condition exists which prevents the engine from cranking. When this occurs, the DTCs will set.

If DTC P0615 is set, diagnose DTC P0615 first. See appropriate STARTERS article in STARTING & CHARGING SYSTEMS. If DTC P0335, P0340, and/or P0385 are set and no trouble is found, check for the following conditions:

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