DTC U0103-87: Lost Communication With Gear Shift Control Module A - Missing message: Action
- Prioritised steps to perform:
- Refer to the appropriate system wiring diagrams and check the transmission control switch power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, check the vehicle for CAN bus (FlexRay) related Diagnostic Trouble Code(s) and refer to the relevant DTC index. Refer to the appropriate system wiring diagrams and check the high speed CAN bus (powertrain) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control switch for related Diagnostic Trouble Code(s) and refer to the relevant DTC index