B151A Code: Meaning, Causes, and Symptoms | OBD2 Codes

B151A – Low Battery Capacity Detected


B151A Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B151A Possible Causes


Low Vehicle Battery,Charging System,Faulty Body Control Module (BCM)


B151A Description


The Body Control Module (BCM) monitors the battery voltage level during an engine crank event to detect a low battery voltage condition. The Diagnostic Trouble Code (DTC) sets when a minimum crank battery voltage is less than the minimum crank battery voltage threshold for 16 consecutive crank events.