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Home >> Jeep >> 2021 >> Gladiator Mojave, Full Time T/Case Control, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 70 ((Occupant Classification Module (OCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U0140-00-Lost Communication With Body Control Module >> Possible Causes
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Possible Causes

WARNING: This page is about a different car, the 2022 Chrysler Voyager and 2022 Chrysler Pacifica. 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  RESTRAINTS-SYSTEM-PRE-DIAGNOSTIC-PROCEDURE  . .