I posted this in the new user area earlier but not sure if that was correct so I am posting here also. I hope its OK.
I am new to jags. I love the way this car looks and drives but the lights are driving me nuts. The right rear stop light wont work. When the brake is applied the light blinks for a split second but does not stay lit. The module clicks but does not stay up. I replaced the rr brake module to no avail. When flashers are turned on the bulbs flash as they should (same bulbs as brake light). How do I troubleshoot this problem?What actually turns the brake module on for brake lights. Also I dont know if it is connected but the right front blinker does not work (blinker or flasher). I can open up the light module and push in the relay on the pcb and it works so its not a wire issue from the module to lamp. The module does not click like the left one does. Do I have grnd issues and if so where should I look.. PLEASE HELP!!! Thanks.

 

I would suggest that you look at the ground connection at both lights. You can do this by connecting a temporary ground to the light fixture and see what takes place.

 

I've moved your thread from General Tech Help section to XJ40 section as it's a model specific question.

Graham