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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System (Abs) - DTCS C1409-07 To U197C-83 >> DTC Troubleshooting >> U1711-87-Lost Communication With TCM >> Possible Causes

Possible Causes

Possible Causes
CAN BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
TRANSMISSION CONTROL MODULE POWER AND GROUND
BCM NOT CONFIGURED CORRECTLY
TRANSMISSION CONTROL MODULE (TCM)
MODULE THAT SET THIS DTC

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .