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Home >> Fiat >> 2017 >> 500 Pop, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> (Audio (Radio) - Electrical Diagnostics - Fiat 500) >> Diagnosis And Testing >> U1733-87 Lost Communication With CTM >> Possible Causes

Possible Causes

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
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