DTC U0028-87: Vehicle Communication Bus A - Missing message: Action
- Using the Jaguar Land Rover approved diagnostic equipment, check the snapshot data to determine the missing message source control module. Refer to the appropriate system wiring diagrams and check the relevant control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, perform a CAN network integrity test. 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 snapshot data to determine the missing message source control module. Check the relevant control module for related DTCs and refer to the relevant DTC index