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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> Body & Frame >> Towing Systems >> Trailer Brake Control System >> Diagnostic Information and Procedures >> DTC C0800 >> Circuit/System Verification

Circuit/System Verification

Engine running, observe the scan tool TBCM Battery Voltage Signal parameter. The reading should be between 12.6 and 15.0 volts.