Front and rear AC stopped blowing

Tiny
LULUVANTUCKETT
  • MEMBER
  • 1994 DODGE RAM WAGON
  • 5.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 53,000 MILES
My van is a B150. Both front and rear AC stopped blowing at the same time. I changed the fuse and it did not resolve it. Is there a blower motor for both units? If so would the fact that both units stopped blowing simultaneously be an indicator that it is not motor related?
Wednesday, September 27th, 2017 AT 8:16 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 46,264 POSTS
It looks like they share fuse #15 20 amp I would start by checking that first.

Here are some guides and diagrams so you can do some testing so we can get it fixed:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please run this test and get back to us so we can keep helping you.

Cheers, Ken
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Thursday, September 28th, 2017 AT 2:23 PM
Tiny
LULUVANTUCKETT
  • MEMBER
  • 2 POSTS
Thanks Ken

I tested all of the fuses and they all check out. The user manual does not show the location of the AC relay and doesn't show where the PDC is. I will keep investigating and keep you posted.
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Monday, October 9th, 2017 AT 2:01 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 46,264 POSTS
I have the location of the air conditioner relay and the PDC (below)

Please let us know what you find. I'm interested to see what it is.

Cheers, Ken
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Tuesday, October 10th, 2017 AT 10:42 AM

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