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1986 c4 Mystery cable?

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Old 07-07-2018, 09:57 PM
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dmcgowan
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Default 1986 c4 Mystery cable?

Trying to debug a bad blower motor (turns out it was just the relay), but going into the ratio and climate controls, I found a cable harness unconnected. Any idea what it is for? Or where it should go?



Old 07-08-2018, 03:02 PM
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WVZR-1
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Looks to be the 'DEFOGGER CONTROL' . Wires should be PNK/BLK, ORN, BLK/WHT and PPL. Do you have the FSM?
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dmcgowan (07-09-2018)
Old 07-09-2018, 08:45 AM
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Originally Posted by WVZR-1
Looks to be the 'DEFOGGER CONTROL' . Wires should be PNK/BLK, ORN, BLK/WHT and PPL. Do you have the FSM?
Thanks for the quick response WVZR-1. I do not have the FSM, but I did order a chilton's manual (FSM looked very expensive!). The I'll take a look to find the wiring diagram for the defogger control.
Old 07-09-2018, 09:07 AM
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billschroeder5842
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Originally Posted by dmcgowan
I do not have the FSM, but I did order a chilton's manual (FSM looked very expensive!). The I'll take a look to find the wiring diagram for the defogger control.
After your car, the second most important purchase is the FSM. It does cost more but if/when you do a side by side comparison you will find the chilton book to be lacking--- severely lacking. Frankly you will have wasted money that you could have put to the FSM.


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Old 07-09-2018, 09:30 AM
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Bill, I'll look at getting the FSM. Do you recommend a paper copy or an electronic PDF copy on a CD? I'm only concerned that the scanned copy may not have the best resolution. Thanks!

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