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Only one tail light not working

Posted: Thu May 03, 2018 12:02 am
by djfairbrother
Hi everyone

I have been frustrating myself this evening with this electrical problem which is stopping me from getting my MOT...

Near side tail light isn't working, even though off side tail light and both brake lights (as well as all other lights in the rear cluster and the fog light) are all fine. This makes me think it's not a fuse/relay issue, right? Ive tried a new bulb and that doesn't make a difference.

Can't see any damaged wires on the NS cluster at all. Behind the OS cluster there is a white wire and a blue wire coming from the same loom that aren't connected to anything.

Does anyone know where the offending light is earthed - maybe it's that? But then wouldn't the brake light also not work, as it's the same bulb??

Any ideas would be greatly appreciated.

Thanks.

Re: Only one tail light not working

Posted: Thu May 03, 2018 6:18 am
by TheLongRoad
I’d try using a circuit tester to see if you are getting a live feed before looking at the bulb / earth. Have you got one of those little screw drivers with a cable and clamp which you can attach to a good earth and test?

Re: Only one tail light not working

Posted: Thu May 03, 2018 9:16 am
by g8dhe
It uses Earthing point 4 - Passenger "A" pillar see

Re: Only one tail light not working

Posted: Thu May 03, 2018 10:51 am
by haydn callow
Quick get you through mot fix....tap into wire feeding the other side, run it under the door seal and tap into problem side.

Re: Only one tail light not working

Posted: Thu May 03, 2018 11:56 am
by mikeonb4c
Do you have a towbar fitted? I have one on mine and a tail lighting problem (bulb blowing) was cured by removing all those dreadful scotchlock connectors the fitter had used and soldering up the connections instead.

Re: Only one tail light not working

Posted: Thu May 03, 2018 12:27 pm
by haydn callow
Only - 22000 posts MIke...you must be getting old šŸ‘ŒšŸ‘Œ

Re: Only one tail light not working

Posted: Thu May 03, 2018 10:10 pm
by mikeonb4c
haydn callow wrote: Thu May 03, 2018 12:27 pm Only - 22000 posts MIke...you must be getting old šŸ‘ŒšŸ‘Œ
Ha ha yes i fear i am. 22k posts - how many wasted hours must that be! :lol:

Re: Only one tail light not working

Posted: Thu May 03, 2018 10:29 pm
by Bob
Ahhh...

But time spent with friends isn't wasted. 8)

Re: Only one tail light not working

Posted: Thu May 03, 2018 10:32 pm
by mikeonb4c
Bob wrote: Thu May 03, 2018 10:29 pm Ahhh...

But time spent with friends isn't wasted. 8)
How true. I feel better already :-)