HELP: Sidelights & Just One Taillight Not Working

davidv10

I was running a little project of using a sidelight bulb holder into red/black wire to run wiring into the cabin for some footwell lighting (501 halogen not led). So that the footwell lights came on with the lights.

All the wiring was done and i tested out the wiring going straight to the battery and it worked perfectly. I then plugged them in to the passenger side sidelight holder wiring and they didnt work. I then checked other bulbs and my licence plate bulbs and ONE of my taillights are not working. The passenger side taillight still works, but not the drivers side! I checked the fuse in the engine bay near the battery and it was fine. When i removed this fuse the passenger taillight obviously went off, then when i reinstalled the fuse that one taillight came back on.

I replaced the drivers taillight (with a spare one) just to triple check it wasnt the light unit, and same result with the other unit. I also plugged in two normal sidelight bulbs and nothing...

So this has left me very confused and i cannot get my head around it....

How can it appear that some of the circuit (the passenger taillight) is still working but the other lights (that i believe are all on the same circuit) are not working?

Any advice would be really greatly appreciated! Im hardly driving atm and not at night, but i still want to get this resolved asap!


This is a picture of the sidelight adapter i used (i only used one of the drivers side sidelight). Which is pretty straight forward and should be fine to use (they are used for led halo sidelight wiring a lot).

Attached Images

651B9D49-4ED2-4503-AB43-5E7FF288D230.jpg (36.0 KB, 7 views)

davidv10

Anyone any ideas at all?

davidv10

It turned out it was the ‘Clearance’ fuse (how was i supposed to guess that from the name...). I wasnt aware that one of the taillight sidelights is on a separate fuse so that you wont lose all sidelights at once. Makes sense.

Hopefully this thread may help someone in the future.

Feel free to close now.