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Home >> Jeep >> 2012 >> Grand Cherokee SRT-8 >> Repair and Diagnosis >> Engine Performance >> System >> 6.4L - DTCS P2273 To U1431 >> Diagnosis And Testing >> U0102-Lost Communication With Transfer Case Control Module / AWD >> Possible Causes

Possible Causes

Possible Causes 
CAN BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
TIPM NOT CONFIGURED CORRECTLY
DRIVETRAIN CONTROL MODULE (DTCM)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .