When using command start the A/C comes on instead?

Tiny
GLENDA J
  • MEMBER
  • 2018 JEEP COMPASS
  • V6
  • 4WD
  • AUTOMATIC
  • 71,300 MILES
Several times when using command start the A/C comes on instead, even though it was on heat last time the vehicle was used.
Saturday, January 28th, 2023 AT 4:06 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,619 POSTS
Yep, it sounds like the BCM is out causing this issue, to be sure we can do a CAN scan, you can get a CAN scanner (Controller Area Network) from Amazon.

Here is a video to show you how:

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

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Here is the location of the BCM, you can get a preprogrammed unit by searching Google or Ebay. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.
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Sunday, January 29th, 2023 AT 5:49 PM

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