Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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Do you have a Volt Meter and a Test Light?
Below click on the link for the Diag Chart for this code. It will guide you though steps to find the problem.
Most times with this code I find a open or short in the wire harness on top of the engine block.
VCM = Vehicle Control Module. See picture for location.
The VCM has 4 Connectors and they are all different colors.
C1 = Blue
C2 = Red
C3 = White or Clear
C4 = Black
I could skip down to the actual testing instead of looking a the possibles.