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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1252 (6.4L - DTCS P3400 To U1449 - 2500 Hd & 3500 Hd) >> DTC Troubleshooting >> U0103-Lost Communication With Electric Gear Shift Module >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
CAN BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
BCM NOT CONFIGURED CORRECTLY
ELECTRIC GEAR SHIFT MODULE (ESM)
MODULE THAT SET THIS DTC