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Hi everyone. I have pulled the interior out of my '77 to get it all up to snuff for the summer. There are a couple of wires that I don't know what they go to and am looking for some help.
The first picture shows two wires, one grey and one black, that come from the area where the tach wires and lights come from. One has a broken piece of plastic that it is screwed to and the other has a round connection. Cigarette lighter?
The second pic has two sets of unknown wires. The yellow and black wires are supposed to be attached to the plug. Where does the plug go? The red and the black wires don't have anything that goes to them. Are they for the stereo? I can't remember taking the stereo power and ground off of those wires, but the stereo (aftermarket) worked prior to me taking this apart and I can't think of any other thing those could be. The only thing that did not work previously was the cigarette lighter. That picture is a little weird, so you can see the black wire that goes with the yellow one comes out of the harness where the yellow one does.
Thanks in advance for the help!
Brad Wires come from area that the tach wires come out of the harness. Yellow and black wires go to the plug. What is the plug for? Red and black are cut and don't go to anything. Stereo?
Brad,
The first one is a little hard to see what's on the end of the black wire but I believe that is the harness for the heater control illumination which fits on the very top of the center gauge cluster and shines down onto the heater controls. Gray is the color for all dash illumination sockets.
Black, Yellow and Gray harness is for the factory radio. Yellow is keyed power, Black is ground, Gray is dial light.
The last harness looks to be Orange and Black. The Orange with the bared end is for the cigarette lighter, the Black is lighter ground circuit.
Cheers, Greg
Agreed with above on the yellow & black cut wires from plug. Yellow wire is switched hot in the ACCY and ON position.
Also agreed with the HVAC 2 wire light and broken housing (6th photo): https://www.ebay.com/itm/33369310676...UAAOSwiUdfPFuI
The other 2 cut wires (orange hot & black ground) are for the cig lighter that are missing there terminals.
The Orange wire is part of the 20A fused clock, courtesy, lighter circuit and is hot at all times, you need to tape it off unless you need a stereo power wire that is hot at all times.
The Brown single wire leaving the dash harness in that gap is the 25A fused wire feeding the HVAC selector switch if equipped.
Last edited by bmotojoe; Apr 23, 2021 at 09:28 AM.
That all makes sense. I had forgotten that the light to the heater control was not working as well. Don't use that much so was not on my mind. I looked at the cigarette lighter and it looks like the connectors are still attached to the assembly. I can get those reconnected and working.
Thanks to you all for responding. I appreciate the help. Heres hoping that I can get this thing put back together....
Electrical Question-Where do these wires go?
