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Home › Buick › 2011 › Regal CXL Turbo, Automatic › Repair and Diagnosis › Engine Performance › System › Data Communications System › Diagnostic Information and Procedures › DTC C056D › Circuit/System Verification

Circuit/System Verification

Verify that DTC C056D is not set.

If the DTC is set, program the control module. If the DTC resets, replace the control module that set the DTC.