I can't find in the manual where the fuse is for the front foglights. I failed MOT because I have drl led foglights. If I pull the fuse and the foglights don't work when they push the button it's okay.

 

It would certainly be helpful to know the MY of the vehicle.

Here is the Electrical Guide for vehicles with early build VINs.

 

It's an 2006, thanks for the guide but have looked in it and there doesn't seem to be a specific fuse for them!?

 

You won't find a fuse.

The Front Fog Lights are protected by the CJB (Central Junction Box). The circuit is protected by FET's (Field Effect Transistors). which can detect overloads and short circuits.

The FET's respond to heat generated by increased current flow caused by a short circuit. On a normal circuit this would cause the fuse to blow. The FET's disconnect the power supply to the affected circuit. When the fault is rectified or the FET has cooled, the FET will reset and operate the circuit normally. If the fault persists the FET will cycle, disconnecting and reconnecting the power supply.

The CJB stores fault codes which can be retrieved using Jaguar SDD.

Graham