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Home >> Jeep >> 2022 >> Compass Red >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 ((Occupant Classification Module (OCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U0140-00-Lost Communication With Body Control Module >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2021 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
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  STANDARD PROCEDURE  .