DTC U0078-88: Control Module Communication Bus "F" Off - Bus off: Action

NOTE: The FlexRay wiring harness must not be repaired by making a localised wiring repair. A new wiring harness should be installed

Using the Jaguar Land Rover approved diagnostic equipment, perform a FlexRay network integrity test. Refer to the appropriate system wiring diagrams and check the FlexRay bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary