AC Compressor not getting signal to kick on, but works when hardwired

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Jul 3, 2007 | 03:33 PM

superfuji57

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Joined: Mar 2002

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From: The Place to Be

AC Compressor not getting signal to kick on, but works when hardwired

Recently reinstalled my AC system. The compressor does grab when turned on, but when I hard wire it it does and blows cold air. At the harness directly going to the compressor it's not getting any positive signal, what are my possible fixes? I've already checked the fuse. TIA

Jul 3, 2007 | 05:06 PM

RenegadeB20

Joined: Aug 2006

Posts: 23

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From: Ajax, ON, Canada

Re: AC Compressor not getting signal to kick on, but works when hardwired (superfuji57)

hard wire it how??? it the r134a is low the pressure switch wont turn the compresser on

Jul 3, 2007 | 05:14 PM

superfuji57

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Joined: Mar 2002

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From: The Place to Be

It was the relay :up:

Jul 14, 2007 | 04:52 PM

Darve

Joined: Feb 2007

Posts: 5

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From: Chesapeake, VA, USA

Where is the relay located. I've "Hardwired" the compressor to and it has kicked on but it doesn't have power through the harness.

Jul 14, 2007 | 05:38 PM

MatterMatt

Joined: Jun 2007

Posts: 267

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From: Milwaukee, WI, United States

Re: (Darve)

The relay is in the underhood fuse box. You have to check for power to the compressor with the car running. Don't hardwire AC compressors. You'll end up junking your compressor and or clutch.