Air conditioning at start up

Asked by Mike Aug 07, 2018 at 02:19 PM about the 2007 Dodge RAM 1500 Laramie Quad Cab RWD

Question type: Maintenance & Repair

I have a Dodge Ram 5.7 Hemi with remote start. I use this feature to start
and cool my truck down before I get in. (I have a frost flake button with a
green light that shows the Air Compressor is on.) It stopped working; now
when I remote start the frost button is off, I have to manually push the button
to get the Air to turn on and cool. I no longer can cool my truck without
psychically  going in and turning on the air conditioner.  Does anyone know
why the frost light (compressor) now shuts off between starts?

1 Answer
4,780

jetjurnigan answered 6 years ago

Find a wiring diagram for your particular installation. At a guess, the command signal either isn't there from the remote start module or the a/c relay is going out.

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