The negative battery cable and the 175-amp "Mega Fuse" are known failure points for this code. Check for arcing or loose fasteners. Check Fuses and Grounds Inspect the Body Control Module (BCM) fuses.
Perform a load test to ensure the battery can hold power under stress. Clean any corrosion from battery posts.
Verify ground straps are clean and tight. High resistance in a ground circuit (greater than ) often triggers this code.
