3.0si Coupe License Plate Lights Out

J

juddyjames

Member
I replaced my License Plate lights with aftermarket LED units (swapped the whole piece out, not just bulbs). They worked great for about 2 months, but now both are out. Didn't throw a code or anything, went through a quick carwash at night, and noticed after by chance. I'm wondering which fuse(s) are linked to the License Plate lights. The diagram isn't specific. Anything else it could be?
 
Thanks for the reply. I checked every fuse with a multimeter and they are all good... Both lights are out together, no power at the connection to the bulbs. I don't know what else it could be.
 
I unplugged everything at the bumper end, checked all the wires about the connections with a multimeter and they aren't getting power on either side... I really don't want to have to take it to a shop, warranty just ran out a few months ago... :(
 
I'm going to ask a question that is going to seem insulting, but it's not meant to be...

You do have the ignition on and lights turned to "on" and not "auto" when doing your tests?
 
OK So back to basics. Have you got power on the fuse box at the fuse socket for the following fuses?

Light Circuits ( headlights, indicators, brake lights, hazards etc ) 14, 23, 59, 60
 
Yes, power on all of the fueses. Tested each one. But no power when it gets the the wires in the bumper. The next step would be the dash switch, correct? Which is still operating the rest of the lights properly, so it has to be after the switch...
 
I don't have the wiring diagram in front of me, I should take a look at the spaghetti coder site... I'd say the switch is in front of the fuse box otherwise you'd be running multiple wires off the switch itself, and there's probably a relay involved as well. If the other lights are working we're looking for where the circuit splits to the failing lamps. In all other instances I'd be looking at an earth problem off those lights as all the others are working. As you've said there is no power though...
 
That makes sense, as far as the switch-relay-fuse box goes. I just don't know where to go from here as far as troubleshooting. Any links to a full wiring diagram?
 
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