Diagnostic Aids
WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
A history DTC may be caused by an intermittent short or open in the OFF/RUN/CRANK circuit or the 5-volt reference circuit. Refer to Testing for Intermittent Conditions and Poor Connections .