Rear License Plate Bulb "out" but bulb is good
#1
Junior Member
Thread Starter
Rear License Plate Bulb "out" but bulb is good
I'm looking of some help with my license plate bulb issue.
I know the bulb itself is good as I have swapped it with the right hand side one and it works there.
I am almost betting the issue is with the wiring in the trunk as I've had to solder several wires that run down the drivers side of the trunk hinge arm to fix the automatic lift gate feature several times.
The problem is that I have pulled the wires out of the harness apart to inspect and have not seen any broken or separated wires.
Does anyone have a good wiring diagram or know the color of the wires so I can trace the exact bulb wires?
I know the bulb itself is good as I have swapped it with the right hand side one and it works there.
I am almost betting the issue is with the wiring in the trunk as I've had to solder several wires that run down the drivers side of the trunk hinge arm to fix the automatic lift gate feature several times.
The problem is that I have pulled the wires out of the harness apart to inspect and have not seen any broken or separated wires.
Does anyone have a good wiring diagram or know the color of the wires so I can trace the exact bulb wires?
#2
Senior Member
What are the colors of the wires on the socket? Find the same colors on the SAM. Check ground and power with a continuity tester. Power/ground at the SAM and not at socket = break in power or ground wire, as you suspect![Wink](https://mbworld.org/forums/images/smilies/wink.gif)
Not the best but should help
![Wink](https://mbworld.org/forums/images/smilies/wink.gif)
Not the best but should help
Last edited by Pmarino; 10-21-2019 at 08:24 PM.
#3
Junior Member
Thread Starter
![Talking](https://mbworld.org/forums/images/icons/icon10.gif)
Re-soldered and heat shrinked and all is well both bulbs light up. We'll see how long till another wire separates...
Still love the car though
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
#4
Senior Member
Unfortunately the soldered union becomes a weak point (better than crimp connectors). Try to keep the solder union as small as possible. You may want to pull a new wire and make your solder joints away from mechanical fatigue points(trunk hinge)![Boink](https://mbworld.org/forums/images/smilies/boink.gif)
Glad you found it and posted the fix
![Boink](https://mbworld.org/forums/images/smilies/boink.gif)
Glad you found it and posted the fix
![thumbs](https://mbworld.org/forums/images/smilies/thumbsup.gif)