Mystery Wires

[slampson]

Posted earlier but experienced photo upload issues.

Might anyone know what these wires go to on a 69-73 911 in the trunk?

Photos #1 and #2 are a group of wires coming off the harness from up near the gauges.
#3 is a single light blue male terminal that separates from the cluster that connects to the heater blower.
I appreciate any help you all can offer.

[timmy2]

Single Blue wire is for the Webasto heater option.
Group of wires: (assuming they are coming from the through body harness)
Black- rear defroster

White/black- rear defroster 2nd stage

White/green- rear driver side fog lamp (European option)

Yellow? Or what colors? Not sure without knowing color or if it has a stripe. Could be from hand brake area as a quick guess if yellow/brown I don’t recall seeing that color wire grouped with the others. Maybe someone relocated it?
If plain yellow it could run to the starter solenoid. Need to do some tracing. A continuity test to the rear 14 pin connector, pin 1 would confirm.

Green is a jumper used on the rear defroster switch.

Hope that helps

[piscator]

Dennis, your knowledge is amazing!

[slampson]

Originally Posted by timmy2

Single Blue wire is for the Webasto heater option.
Group of wires: (assuming they are coming from the through body harness)
Black- rear defroster

White/black- rear defroster 2nd stage

White/green- rear driver side fog lamp (European option)

Yellow? Or what colors? Not sure without knowing color or if it has a stripe. Could be from hand brake area as a quick guess if yellow/brown I don’t recall seeing that color wire grouped with the others. Maybe someone relocated it?
If plain yellow it could run to the starter solenoid. Need to do some tracing. A continuity test to the rear 14 pin connector, pin 1 would confirm.

Green is a jumper used on the rear defroster switch.

Hope that helps

Brilliant. That helps a lot.

The Yellow is a brown and yellow stripe.

If I can ask you another...

There is a black with white dots and a green stripe exiting the harness by itself right up near the back of the gauges.

And the the last one was extra double black switched power wire without an obvious home.

[timmy2]

Double black wire in one connector and really long should be clock.
Black/green/white is usually for the hazards.
I’ll look at my stuff at home tonight to confirm the black/green/white.

[slampson]

Originally Posted by timmy2

Double black wire in one connector and really long should be clock.
Black/green/white is usually for the hazards.
I’ll look at my stuff at home tonight to confirm the black/green/white.

I thought about the clock for the double black but it's a switched power. I presumed the clock would need a constant source.

Regarding the black and green(white dots) wire, my hazards are currently working so I'm not sure what this one is for... possible oil slick/bullet deflector?

Thank you for your continued help. It's very much appreciated.

[timmy2]

Double black also runs to rear defogger switch and glove box lamp.
If male connector it is for dome lamps.
I’m at work so just going from memory on these. Black/green /white coming out from a relay base?
Have to check where it goes tonight.

[slampson]

Originally Posted by timmy2

Double black also runs to rear defogger switch and glove box lamp.
If male connector it is for dome lamps.
I’m at work so just going from memory on these. Black/green /white coming out from a relay base?
Have to check where it goes tonight.

That makes sense with the double black. I found a constant hot black which I wired to the clock. Unfortunately, the clock isn't working.


The black/green/white exits the harness by itself right behind a relay up near the gauges.

[echecsqueen]

Originally Posted by slampson

That makes sense with the double black. I found a constant hot black which I wired to the clock. Unfortunately, the clock isn't working.





The black/green/white exits the harness by itself right behind a relay up near the gauges.

There is a nice thread around here on how to fix the clock yourself

Sent from my BBB100-1 using Tapatalk

[slampson]

Originally Posted by echecsqueen

There is a nice thread around here on how to fix the clock yourself

Sent from my BBB100-1 using Tapatalk

Thank you for the heads up.