DTC U0028-88: Vehicle Communication Bus A - Bus off: Action
- Prioritised steps to perform:
- Using the Jaguar Land Rover approved diagnostic equipment, check the vehicle for CAN bus (FlexRay) related DTCs and refer to the relevant DTC index. Refer to the electrical circuit 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, reconfigure the transmission control module with the latest level software