A/C compressor clutch relay , the PCM/ECM isn't energizing it ? Do you know what a wiring diagram is ? How to test electrical circuit's with a volt meter ? Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine . Under system click on HVAC ,then under subsystem click HVAC controls . Click the search button then the second blue link. Compressor clutch relay circuit .
SOURCE: No power for AC compressor
It sounds like you may be low on freon, if the low pressure switch, senses low freon pressure, it won't let the A/C come on. You either have low freon, or the low pressure switch on the accumulator has gone bad. Both common problems with that vehicle.
No you don't. The hi/lo awitch is on the tubing at the drier.
SOURCE: 1992 gmc c1500 ac compressor relay location
I pulled this from another web site
"The AC clutch relay is located inside the cab on a metal bracket that is easiest to see when you remove the glove box compartment.
The relay is on a metal bracket bolted to the top of the plastic air box, forward and to the center of the dash from glove box.
There are three relays in a row on that bracket. The AC clutch relay is the end one closest to the driver’s side."
Testimonial: "Right on target... THANKS"
SOURCE: My ac is not working on my 2000 mustang 3.8L. I'm
You were close! Most Fords have a CCRM (Continuous Control Relay Module) thats on the passenger side fenderwell. It has 4 relays: one for the AC compressor cluth, one for the fuel pump, and two for the electric fan (high- and low-speed.) The AC is the one that fails the most. You can replace the CCRM by removing the intake air filter box and working through the fenderwell openings. If it gets to difficult you must remove the wheel and splash cover to replace it from the wheel opening.
SOURCE: have no power to the ac compressor. all fuses and
SOUND LIKE AC COMPRESSOR CLUTCH COIL IS OPEN.ITS GETTING POWER YOU HAVE A OPEN COIL CIRCUIT.
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