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Wiring for heating 86 Carrera
Hello again,
This time I have taken on the task to fix the heating on my 86 carrera. Previous owner has made this a little tricky for me, as you can see from the pictures. At some point the circuit board has given up, and instead of replacing, the guy made his own switch, with bypass wires going from circuit board to the servo and fan control. Unfortunately this meant removing and cutting existing wires. As I want to restore this to original, I am trying to find a diagram for this. In the diagrams I have seen, there i nothing to show the internal wiring. Just the wiring going to and from blower and heating control units. Does anyone know if such a diagram exists? Last edited by CL767; 05-05-2020 at 12:47 AM.. |
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05-05-2020, 12:44 AM
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05-05-2020, 12:59 AM
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05-05-2020, 01:01 AM
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05-05-2020, 01:03 AM
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Registered
Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
Posts: 5,238
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Auto heat.
 ^^^^^ Unfortunately, the factory manual does not show all of the pin#'s, or the color codes.      ^^^^^ Here are a few pics. Please be advised that the PC board design varies considerably from M/Y to M/Y. Good luck, Gerry
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1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." |
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05-05-2020, 07:06 AM
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Thank you so much. I will give it a try. I found an aftermarket PC board, and they say all the boards are the same, but wiring colours can vary. I will start off by making sure fans and servo switches work, and then try to backtrack from there. I have all summer
 Witch Manual is the diagram from? The one I have is not as detailed. You wouldn’t happen to have a picture of your wires going into the PC Board? Then I could follow the coilours from the pin to where I attaches, based on the other pics? Last edited by CL767; 05-05-2020 at 08:27 AM.. |
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05-05-2020, 08:23 AM
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Registered
Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
Posts: 5,238
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Manual.
The CKT is from the factory manual which I believe
is long ago out of print. You can find the complete factory 3.2 manuals on the used parts forum & on eBay. A bit pricey ~$700. All I have is the electrical section, sorry no pics of the wiring into the PC board. And, all PC boards are not the same. Gerry
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1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." Last edited by 86 911 Targa; 05-06-2020 at 08:47 AM.. |
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05-05-2020, 01:34 PM
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