Hi all,

Recently had a brake light out in my R53 Cooper S. Changed bulb, no worky. Swapped the bulb panel from the other side, no worky!

Took the car into my dealer and after two visits, they've pinned the culprit as the car control module. A very, very expensive replacement part. Aside from the brake light out, all other lights (and everything else on the car) works perfectly.

My question; Can I run a wire from the working side light loom to the faulty side? Any disadvantages to this? Will it mess with voltage or throw up errors?

Also wondering if this has happened to anyone else and if it's an easy fix, or something a local auto electrician can handle.

Thanks.

 

It will work. Might throw up errors, depends how the module 'sees' things. Double check wires and earths. You can get a false earth through other globes.

 

Sounds like the same problem I am having with my Xenon headlight. Tried replacing the bulb but no worky. Have not taken it to the dealer yet because of the expense. I would fix it correctly.

 

True factory Xenons run a 'start' and a 'run' module. "Globes" last 15 years as they do not have a filliament. (If you have a filliament you do not have HID Xenons). It sounds more like one of those modules has failed.

 

It could cause a problem because the working side will draw twice the amount of current than the control module was designed to provide. Better to run a wire from the battery to the faulty side, and control it through a relay from the working side.

 

That or maybe just run LED's.....so with led's on both sides, there will be a decrease in power needed....