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Home >> Jeep >> 2019 >> Compass Trailhawk >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> (Occupant Classification Module (OCM) - Electrical Diagnostics) >> DTC Troubleshooting >> U0140-00-Lost Communication With Body Control Module >> Possible Causes
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Possible Causes

Possible Causes
CAN BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
BODY CONTROL MODULE (BCM) POWER AND GROUND
BCM NOT CONFIGURED CORRECTLY
BODY CONTROL MODULE (BCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .