B1327 GMC – Device Power 1 Circuit Low

B1327 GMC Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B1327 GMC Possible Causes

Low battery voltage,Faulty Body Control Module (BCM),Body Control Module (BCM) harness is open or shorted,Body Control Module (BCM) circuit poor electrical connection

B1327 GMC Description

The Body Control Module (BCM) has an internal voltage sensor with a dedicated circuit that checks the battery positive voltage and battery negative circuit voltage to determine if it is above 8.7 volts.