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Home >> Jeep >> 2011 >> Compass Base, 2.0 A, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 ((All Wheel Drive (AWD) Module - Electrical Diagnostics)) >> DTC Troubleshooting >> U0100-Lost Communication With The ECM/Pcm >> Possible Causes

Possible Causes

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Possible Causes 
CAN BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
POWERTRAIN CONTROL MODULE POWER AND GROUND
TIPM NOT CONFIGURED CORRECTLY
POWERTRAIN CONTROL MODULE (ECM/PCM)
MODULE THAT SET THIS DTC