Would like diagrams Auto Temp Control?

Tiny
KEVINV1645
  • MEMBER
  • 1999 CHRYSLER LHS
  • 3.5L
  • V6
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
1998 Chrysler Concorde Auto Temp Control LGB BILL Car dealership MEMBER1998 CHRYSLER CONCORDE 6 CYL FWD AUTOMATIC 128,000 MILES
Sunday, November 30th, 2025 AT 6:39 AM

6 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,860 POSTS
Hello Kevin, here is the HVAC wiring diagrams and a guide to help with the testing:

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

Check out the images (below). Let us know if you need anything else.
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Tuesday, December 2nd, 2025 AT 9:20 AM
Tiny
KEVINV1645
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Awesome! These ATC'S :-(
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Tuesday, December 2nd, 2025 AT 10:02 AM
Tiny
KEN L
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Yep, they can give troubles for sure, let me know what the problem was if you can :)
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Tuesday, December 2nd, 2025 AT 10:07 AM
Tiny
KEVINV1645
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Hi Ken L, The wire diagrams are very helpful, thanks! Looking for info specific to the pcb components, aspirator motor and the rest. Need to troubleshoot what fails. Don't believe its a BCM issue. ATC has no relay. Rabbit hole.I know. If you can help, great, if not, that if fine, also.
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Wednesday, December 3rd, 2025 AT 8:41 AM
Tiny
KEN L
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Sure, I will help you, the first thing I would do is a CAN scan to see what codes are stored, please go over this video which should help us retrieve the codes.

CAN SCAN - https://youtu.be/u-4syLc-ifQ

Let us know how it goes.
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Thursday, December 4th, 2025 AT 8:12 AM

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