Fuses F63 7.5A (right hand - front side light, side markers, rear tail lights) and F87 15A (front fog lights) keep blowing as soon as I replace them.

I tried to do some troubleshooting to find out if it is a specific bulb by removing the rear tail light connector, side marker bulbs, and front side light one by one. I replaced all the bulbs with new ones of the correct type, but still the fuses keep blowing.

The fog lights come on for about two seconds after I put in a new fuse and then the fuse blows again. F63 blows immediately as soon as I turn the lights on. Any tips on troubleshooting would be really helpful. Thanks!

 

Ok I have had this issue as well and here is your problem. There is a break in a wire in your fog light wire harness. Jack up the car and loosen the lower engine splash shield then trace the wire harness from your fog lights to the main plug. I guarantee you will find a break in one of the wires. Jaguar ran that harness way to tight and it actually breaks itself over time. This is your problem my friend 100%. Let me know how it works out.

 

I took it to the shop a few days ago and the issue was exactly the same as you described. Thanks for the info.