wiring under steering wheel (3 questions)

[chroma22]

I'm making a lot of progress 'un-wiring' what the PO has done, but I have a couple questions for y'all...

The first two pics are the wiring plug under the steering wheel that controls the turn signals/horn/etc. On the one side (the burnt up one) that controls the right turn signal, there are two holes in the plastic wiring plug, but the PO has the same wire going to both. The burnt green/black also feeds the grey/red. Which wire is supposed to go where, and should the two pins be fed from different locations?





Secondly, on the hazard light relay, a blue wire has been cut (2nd pic). Any idea where this one is supposed to go?



One last question (for now)...the turn signal indicators are wired together (as I've read, that's how they did it after '74). But the wire is just dangling. Where should this one go, directly hook it up to the turn signal relay or somewhere else?

Thanks in advance,
bri
'74 2.0[

[914GT]

It's hard reading your post because the picture size is too big. The black/green is for the right turn signal. The grey/red wire goes to a separate contacts on the turn signal switch and is the European parking light feature. You can disconnect the grey/red wire but you need to connect the black/green to the correct terminal for the switch.
Here's a photo of the connector

[914GT]

Here's a labeled wiring diagram that might help you.

[chroma22]

Thanks, Guy, and sorry for the big pics. I'll use smaller ones next time. You answered my question about the turn signal, I can fix that one w/out a problem. I'll repeat the other question here so that it's readable...

1) Blue wire cut on hazard relay connector...needs to go somewhere? (last big pic)

2) New question: Where is the Temp Control Illum. light? (shown on the wiring diagram). I have 4 blue/black wires coming from pin 58a on the headlight switch, 1 for gauges, 1 for dash lights, 1 that runs to right about at the gear shift and just ends (dangling), and I assume the other one goes back to the trunk light and license plate. Maybe I'm missing a light somewhere near the gearshift?

[914GT]

On number 1, I think that wire (blue/wht) goes to the turn signal indicator light. You'd have to pull the tach out and see if you can fin d the other end up there. This would be for the later cars with the single indicator light.

I'll have to look at your #2 later.

[914GT]

Ok, on #2, that's a black wire w/blue stripe from the headlight switch over to the temp control.

[chroma22]

Yep, you're right on for #1, I have the other end dangling and didn't know where it was supposed to go. I have two separate relays (1 for hazard, one for turn signals, not sure why), so I had temporarily hooked the blue/white wire up to the turn signal relay. I'll try it from the hazard relay and see what happens.

On #2, I figured it was going to the temp control. But where (physically in the car) is the temp control illumination light? Is there a plastic connector near it or anything?

[914GT]

That's a bulb that plugs into the back of your dash temp controls. I really can understand what you're going through. Took me hours to sort out the wiring mess on my car. PO's had cut things up, wired in alarms, disconnected stuff, radio hook-ups, you name it. It was a mess.

[chroma22]

Thanks for the sympathy, Guy, I've already pulled out somewhere around 40' of unnecessary wiring, and am still trying to figure out what posessed the PO to do some of this stuff...but actually I'm kind of enjoying it, the engineer side of me likes to figure out how things work, and I'm definitely getting to know this car much better than I had expected.

Now that I understand which light is the temp control, I realize I already have that one working, in addition to the gauges.

But I still have that one wire that starts to head down the transmission tunnel and just ends, kind of near the red air control handle. Know where that one might be heading?

[914GT]

Engineer huh? Now I really really understand your situation. You sound just like me. We engineers just cannot stand the thought of having a wire in the car that does not go anywhere can we? We'll tear the whole damn thing apart just to see where that one lousy wire goes.

OK back to your question ... I don't think you said what color the wire was. It could be +12V coming off the brake light switch and would be used for the center console voltmeter & oil temps gauges. Then there's another +12V one for the clock.

[chroma22]

Very true, an engineering background is both a blessing and a curse. It's not good enough that it just works, but it has to be correct, efficient, and (if possible) better. Or at least broken down to its atomic components on the garage floor

The wire is blue/black just like the others and comes off the same pin (58a) from the headlight switch. I've got all the center console gauges/lights/clock working, and all the plugs for those are the correct color/wires. So I don't think it's 'center console' related. But that is the general area where it ends. It's got a small connector on the end as if it should plug into something similar to the turn-signal connector in the first two pics I posted. But I don't see anything like that in the vicinity of the wire...

[Dave at Pelican Parts]

Sounds like the wire that powers the light in the "DEFROST" indicator. Which doesn't come on when the red handle is pulled up, it comes on when the parking lights (and gauge lights) do.

--DD

[chroma22]

Thanks Dave, that sounds about right. Since I no longer have one of those lights, I guess that explains my confusion.

[SGB]

Yep, Dave, got it.