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Climate control pin needed

Tiny
BLUTOOTH
  • MEMBER
  • 1997 MERCURY MARQUIS
  • 4.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
There are 2 plugs in the back of the climate control module, can you provide the pin outs for both?
Thanks,
Ron
Tuesday, March 15th, 2022 AT 4:10 AM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
No problem. I am attaching the complete wiring diagram below for your review.

Also, here is a guide that will help with this testing in case you need it:

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please run through this and let me know what other questions you have.

Thanks
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Thursday, March 24th, 2022 AT 5:21 PM
Tiny
BLUTOOTH
  • MEMBER
  • 1 POST
When plug 227 was plugged in I got no display, I cut line 15, blend door reference ccw and was able to get the display back and fan control.
What function did I lose?
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Thursday, March 24th, 2022 AT 5:21 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Okay. If this circuit is removed, then you have a short in the wire or the blend door actuator has shorted, and it is corrupting the climate control display.

So, I would suggest replacing the actuator if nothing else is found.
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Thursday, March 24th, 2022 AT 5:24 PM

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