A/C Compressor Relay Location

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Cadmaro

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2014
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6.7 Cummins
I'm having trouble with my A/C in my 2014 Ram 3500. The compressor isn't kicking on but it has adequate pressure (about 98psi with compressor off) and the fuse is good but has no power to it. If I jump power to the fuse the compressor comes on and cold air comes from the vents. This leads me to believe it is a relay issue but I can't find the location with all my Google searches and forum searches. Can someone point me in the right direction?




***Mods****
If this is not the right sub forum will you please move this to the correct area for me?
 

Burla

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I think you can bypass the TPIM, let me look into it a little. You can at least use that to diagnose if it is TIPM.

 

Burla

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Read this thread, I think there is at least one example of someone bypassing TIPM for an issue like yours post 25, and search TIPM and air conditioner here.

I don't know if this is correct for you, but gives you maybe an idea...

2010-06-22_020617_3500_2.gif
 
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Cadmaro

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Thanks for the help so far! It seems like a bypass with a relay is the best option for me. Having a little trouble finding the correct wiring diagram though. Does anyone have a reliable source for that stuff?

***Edit***

Looks like I may have found it!

http://connectors.dcctools.com/results.htm
 
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Cadmaro

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Quick update :

The bypass did NOT fix my problem. After I bypassed the TIPM I was getting "climate control off" on the 8.4. I thought this was a issue with the bypass so I undid it and reconnected the 2 wires under the TIPM how they should be and tried a know good TIPM. Same issue so I used AlpaOBD to pull the HVAC codes and still had U0164 - "lost communication with HVAC module". I found the module for $50 from my local salvage yard and problem solved!!! I think the module went out because I had a windshield leak that dripped down the passenger grab handle right onto the module. I believe I have the windshield leak fixed thanks to some "flowable windshield sealant" but I wont be able to test until tomorrow once it is full cured.
 
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