Where do the rear tail lights ground to?

[175K911]

Took these out 8 years ago, can't remember where the ring terminals for the rear light housings ground to. '86 911.

[86 911 Targa]

^^^^^
Hope this helps.

Gerry

[john walker's workshop]

On the body by the bumper shock mounts.

[175K911]

That's what I thought John, but wasn't sure. Thanks

[175K911]

Thanks everyone. But 2 steps forward and 1 step back

Left rear works perfectly, marker, brake, blinker.
Right rear completely dead. Have confirmed I have a good chassis ground. Guess I either need to pull the housing apart to see if that end of the ground wire is good, or trace the harness from the round plug in the right rear of the engine compartment back to the fuse box.

[86 911 Targa]

Originally Posted by 175K911

Thanks everyone. But 2 steps forward and 1 step back

Left rear works perfectly, marker, brake, blinker.
Right rear completely dead. Have confirmed I have a good chassis ground. Guess I either need to pull the housing apart to see if that end of the ground wire is good, or trace the harness from the round plug in the right rear of the engine compartment back to the fuse box.

Possibly a corroded connection at the harness connector.

Gerry

[juanbenae]

Originally Posted by john walker's workshop

on the body by the bumper shock mounts.

+1

[timmy2]

Originally Posted by 175K911

Thanks everyone. But 2 steps forward and 1 step back

Left rear works perfectly, marker, brake, blinker.
Right rear completely dead. Have confirmed I have a good chassis ground. Guess I either need to pull the housing apart to see if that end of the ground wire is good, or trace the harness from the round plug in the right rear of the engine compartment back to the fuse box.

Just unplug the male 6 pin plug and test the pins for power to ground with lights on.
Some are brake and reverse and oil level, but you should have power on the pin right at the alignment slot and at the pin opposite it.
Likely isn't from the fusebox to that connector. (unless you have mice!)

[93nav]

Any chance of getting pics of the ground locations? Cleaning them up are on my to do list.

[175K911]

Originally Posted by timmy2

Just unplug the male 6 pin plug and test the pins for power to ground with lights on.
Some are brake and reverse and oil level, but you should have power on the pin right at the alignment slot and at the pin opposite it.
Likely isn't from the fusebox to that connector. (unless you have mice!)

Exactly what I did this morning. All pins were fine. So I started checking all the sockets in the housing, trying to think why they worked when I took the lights out 8 years ago when I disassembled the car. Hmmm, all the contacts were gray, not copper color. Then it hit me, like a ton of bricks- I had sanded and sprayed the reflectors with chrome paint to restore them. Yea, I forgot that I hadn’t masked the terminals all those years ago, and the paint insulated the contacts. A little sand paper on the end of a screwdriver blade and everything works fine. My wife got a chuckle out it at least.

[timmy2]