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Home >> Fiat >> 2014 >> 500c Abarth >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Audio (Radio) - Electrical Diagnostics - 500E) >> Diagnosis And Testing >> U1733-87-Lost Communication With CTM >> 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
CONVERGENCE TELEMATICS MODULE (CTM) POWER AND GROUND
BCM NOT CONFIGURED CORRECTLY
CONVERGENCE TELEMATICS MODULE (CTM)
MODULE THAT SET THIS DTC