DTC B1087-88: LIN Bus A - Bus off: Action

Refer to the electrical circuit diagrams and check the steering wheel switchpack power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary, clear the Diagnostic Trouble Code(s) and retest
Using the Jaguar Land Rover approved diagnostic equipment, reconfigure the infotainment master controller with the latest level software. Clear the Diagnostic Trouble Code(s) and retest
If the fault persists, do not replace the infotainment master controller. Contact the Jaguar Land Rover service desk for further assistance