Diagnostic Aids

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The following conditions may cause this DTC to set: Low resistance in both the No. 1 and No. 3 secondary ignition circuits, high resistance in both the No. 2 and No. 4 secondary ignition circuits or an intermittent crank signal.
An intermittent crank signal will result in an interrupted cam signal and may set this DTC.
To locate an intermittent problem, monitor the CMP Active Counter parameter while running the engine with a scan tool. The counter should continuously count up to 255, then reset to zero. The counter will stop counting if a fault occurs in the cam signal circuit. If this DTC is determined to be intermittent, see INTERMITTENTS in TROUBLE SHOOTING - NO CODES - 2.2L & 3.0L VUE article.