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DTC U0028-87: Vehicle Communication Bus A - Missing message: Action
- Using the Jaguar Land Rover approved diagnostic equipment, inspect the connected control modules on the high speed CAN
bus (powertrain) to determine the missing signal source control module. Inspect the relevant control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC
index
- Perform the communication network failure procedure. Refer to the electrical circuit diagrams and inspect the high speed CAN
bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary