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Old Nov 4, 2013 | 02:10 PM
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Need help with a couple of wires. The car is a 69 convertible with a small block, power windows and factory AC. The wire harness was out of the car when I bought it and I am putting in a new harness. I looked everywhere and cannot come up with the wire colors and location for the power window circuit breaker circled in RED. It looks like one of the wires comes from the electric window harness but I have found nothing that supports that. I also don’t know where this comes through the fire wall.
Also have a red lead circled in RED and a ground circled in BLUE that I do not know what they connect to.
Thank you for any help you can offer
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Old Nov 4, 2013 | 02:33 PM
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I have a 70 with a similar red wire/plug that you have circled. Mine connects to a corresponding red wire/plug on the wiper motor.
The grayish/blue wire (again for a 70) goes to the TCS relay, which is located on the firewall in that general area. I don't believe 69's had a TCS relay.

Do you know if your wiring harness is 100% accurate for a 69 or maybe generic C3?


Last edited by Revi; Nov 4, 2013 at 02:45 PM.
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Old Nov 4, 2013 | 02:43 PM
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Power window wiring may be separate from the engine harness wiring (it is on my 68 and may be on the 69s). Do you have the assembly instruction manual (AIM)? The AIM shows the wiring for the circuit breaker. On my 68, there are a pair of large gauge red wires to the breaker.

I will not be able to check the 69 AIM until this evening.

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Old Nov 4, 2013 | 02:53 PM
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The harness came from Lectric Limited but that does not mean they don't cover all options. I found that they incorporated the blower motor wire in this harness along with the AC blower motor wire. Not sure if that is how production did it originally. The factory assembly build book says to cut off the orange (blower) connector and discard.

I did installed a new windshield wiper motor that may be the reason for me not having the correct connector
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Old Nov 4, 2013 | 02:58 PM
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I checked my AIM and it shows wires but does not indicate color and is unclear where the wires come from.

The 69 does have a different harness for the windows. I have one wire that comes out of this harness that appears to go through the fire wall somewhere. I just need to confirm and figure out where the other wire comes from. Off the top of my head I don't remember the color of the wire.
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Old Nov 4, 2013 | 03:07 PM
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Originally Posted by 69schemers
...The 69 does have a different harness for the windows...
Thought so.

...I have one wire that comes out of this harness that appears to go through the fire wall somewhere. I just need to confirm and figure out where the other wire comes from...
Check the Options section in the AIM (it's in the back in my 69 AIM). UPC A31.

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Old Nov 4, 2013 | 03:09 PM
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I believe the color is red that runs from the horn relay to the 30 amp fuse that is on the firewall from 30 amp fuse a orange wire runs to your power window relay. The power window harness is separate from you dash harness.

I was not to far off the red wire is to the horn relay (Battery)

http://willcoxcorvette.com/repairand...lp.php?hID=207

Last edited by Roco71; Nov 4, 2013 at 03:17 PM.
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Old Nov 4, 2013 | 03:33 PM
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Perfect!!

Thanks guys for the help.
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Old Nov 4, 2013 | 03:34 PM
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The red and white wire plugs into your wiper motor's red line. The black is a ground that should plug into a single tab somewhere on the wiper motor body.
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Old Nov 4, 2013 | 03:50 PM
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Originally Posted by Roco71
...I believe the color is red that runs from the horn relay to the 30 amp fuse that is on the firewall from 30 amp fuse a orange wire runs to your power window relay...
Yep. That sounds right.
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