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Home >> Jeep >> 2021 >> Compass Trailhawk >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Occupant Restraint Controller (Orc) - DTCS B2734-95 To U1476-00 >> DTC Troubleshooting >> U0140-00 - Lost Communication With Body Control Module >> Possible Causes

Possible Causes

Possible Causes
CONTROLLER AREA NETWORK (CAN) C BUS (+) CIRCUIT SHORTED TO VOLTAGE
CAN C BUS (-) CIRCUIT SHORTED TO GROUND
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
BODY CONTROL MODULE (BCM) NOT CONFIGURED CORRECTLY
BCM POWER AND GROUND
BCM
MODULE THAT SET THIS DTC

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.