DTC B1479-48: Power Supply Distribution Box - Supervision Software Failure: Action
- Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s), lock the vehicle and wait two minutes. Unlock the vehicle and retest
- Refer to the electrical circuit diagrams and inspect the LIN bus circuit between the Gateway module and the power supply distribution box 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 gateway module with the latest level software and retest
- If the fault persists, install a new power supply distribution box as required