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Home >> Dodge and Ram >> 2017 >> Challenger SXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Adaptive Front Lighting System Module - Electrical Diagnostics) >> DTC Troubleshooting >> U0100-00-Lost Communication With Pcm >> Possible Causes
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Possible Causes

WARNING: This page is about a different car, the 2012 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
CAN C BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
POWERTRAIN CONTROL MODULES POWER AND GROUND
BCM NOT CONFIGURED CORRECTLY
POWERTRAIN CONTROL MODULE (PCM)
ANY MODULE THAT SET THIS DTC