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The dash info indicated a left brake light failure so I replaced the bulb. When I turned on the ignition and pushed the brake peddle the "failure" warning went away. I pushed on the brake a second time and the brake light failure reappeared, then tail light faulure appeared. I thought it may be the new bulb so I put in another one. Same thing happened. Now I notice if I leave the tail lights off I have no left rear brake light but the brake light failure warning does not come on. If I turn on the tail lights I get the tail light warning as well as the brake light warning. Now what??????????/
Check the fusebox in the trunk. I think I recall that there are 2 fuses in there which control the tail lights and brakelights (module). Also check the ground on the taillight module which is on the trunk on the fender well. Pull out the carpet and you'll find it.
Hope this helps.
I had the same confusing problem with my tail brake light...i i tried fix with the regular same bulb and it didnt worked...but i gived one more shot and i bought original german bulb and the problem was resolved...brake light works and no more warnings hopefully this will help....
The Following User Says Thank You to VojtasNY For This Useful Post:
Good points listed above. Please post what bulb you are installing. Jaguar uses different bulbs that most cars and you can force the incorrect bulb in the socket. I had weird problems with a front turn signal light until I checked it and finally installed the correct bulb.
So check your owner’s manual!
My left rear tail lights, the small bulb and the lower element of the dual tail/brake light bulb, work. When I brake the small bulb goes dimmer and the lower element of the big bulb goes completely out but the bright element of the dual bulb (the brake element) does not light up. If I turn on my rear fog lights both left rear tail light bulbs go out and the left rear fog light does not light up. If I brake while the rear fogs are on the right rear fog gets dim and the left rear fog barely glows. If I remove either left or right rear fog light bulbs while the fogs are on or off the right rear brake and tail lights work but the left rear tail lights will not come on. I have exchanged brake/tail light bulbs from left and right so its not the bulb. I have checked the ground and it is ok as it grounds left and right. Help!
Look very closely and compare the original bulb with the replacement bulb. Especially the two short stubby prongs on the metal part of the bulb that twist into position in the bulb holder. They have to be exact position as the original. My brake light went out and I was given the wrong bulb that also burned brighter than the other tail light. It was a higher voltage, as well as the prongs being out of position by just a little. Look at both bulbs from the bottom and notice where the prongs are located, as if they are the hands on a clock. Hope this helps.