DTC B13D3-04: Left Daytime Running Lamp And Position Lamp Control - System internal failures: Action

NOTE: To validate the repair firstly run the engine for 30 seconds and check the left front position lamp and daytime running lamp function, then use the Jaguar Land Rover approved diagnostic equipment to check this DTC is no longer set within the body control module

Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest. If the fault persists, install a new left headlamp assembly