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Home >> Dodge and Ram >> 2012 >> Challenger SXT Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 256 ((Transmission Control Module (TCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U0140-Lost Communication With Body Control Module >> Possible Causes
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Possible Causes

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE
CAN C BUS (-) CIRCUIT SHORTED TO GROUND
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
BCM NOT CONFIGURED CORRECTLY
BCM POWER AND GROUND
BODY CONTROL MODULE (BCM)
MODULE THAT SET THIS DTC