DTC B12EF-53: Trailer Fog Lamp - Deactivated: Action

NOTE:

This DTC can be set due to an electrical fault in the trailer
Routine (0x205E) can only be performed twice in the lifetime of the module, a third deactivation event would require module replacement

Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest
Inspect the trailer socket and wiring harness for signs of damage or corrosion, rectify as necessary
Refer to the electrical circuit diagrams and check the trailer fog lamp circuit for short circuit to ground. Repair the wiring harness as necessary, clear the Diagnostic Trouble Code(s) and retest
Using the Jaguar Land Rover approved diagnostic equipment, perform routine (0x205E) Enable Protected Outputs