Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

Heater Control Unit Wiring

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Old Jun 24, 2006 | 12:11 PM
  #1  
camaronewbie's Avatar
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Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Heater Control Unit Wiring

Searched and can't put the pieces together. I have a 1990 RS with A/C. The heater control wires fried, and I found the problem, and got new wiring harness - but I believe the harness is not correct for my car.

The new harness has two wires missing from the connector, that correspond to postion 1 and 2 on the control head slide (max, norm, bilevel, vent, heat, defog). I also have 2 wires in the car that have no where to connect to the new harness, a smaller dark green wire and a smaller black (or brown, can't tell) wire.

Do I have the right harness for my A/C car? Why no wires for those positions on the control head? Do my extra wires go there, and which goes to which connector?
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Old Jun 26, 2006 | 12:50 AM
  #2  
jstrdn90rs's Avatar
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Joined: Jun 2006
Posts: 503
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From: Desert Heat
Car: 90 RS/90 Z-71/73 Vega
Engine: 3.1/5.7 TBI/5.7
Transmission: 700R4/700R4/350turbo
Axle/Gears: 3.23/3.42/3.42
[

The new harness has two wires missing from the connector, that correspond to postion 1 and 2 on the control head slide (max, norm, bilevel, vent, heat, defog). I also have 2 wires in the car that have no where to connect to the new harness, a smaller dark green wire and a smaller black (or brown, can't tell) wire.

Do I have the right harness for my A/C car? Why no wires for those positions on the control head? Do my extra wires go there, and which goes to which connector?

I think you might have a harness for a v8..dark green and blk wire run on the 90 v6 VIN T
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Old Jun 27, 2006 | 04:07 PM
  #3  
camaronewbie's Avatar
Thread Starter
Supreme Member
 
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
I have a v8 car. Oh well, I'll just get another harness and try again.
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