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#1
10-31-2007, 01:18 PM
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Where is the AC relay?
Baught a 94 taurus with a blown ac compressor, I replaced it and charged the system to the correct amount, but the compressor will not kick in, not getting any voltage to it. I checked the pressure switch and its good, and when you turn the panel to ac max the motor revs up expecting the compressor to kick in, but its not. I have verifyed the compressor clutch is working, ac panel switch works and pressure switch works, fuse is good. So where is a AC relay, as I cannot find it nor does any on my manuals say anything about the ac system.
Mike 
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#2
10-31-2007, 04:53 PM
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Re: Where is the AC relay?
Possibly in the ccrm unit, located under the radiator sight shield.. someone else will definitely know for sure..
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#3
10-31-2007, 10:15 PM
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Re: Where is the AC relay?
Yes, the AC clutch relay is integrated into the Constant Control Relay Module (CCRM) which is mounted to the radiator core support.
The ground for the A/C compressor clutch is pin 16 of the CCRM (Gray/White wire if you have the 3.8L, black wire if you have any other engine). The positive feed for the clutch is pin 23, a black/yellow wire. The relay drive is on pin 21, a pink/light blue wire. -Rod
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#4
12-01-2007, 11:58 AM
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Re: Where is the AC relay?
Search this forum for CCRM. The relay's tend to become unsoldered and the transistor tends to burn up ... all due to heat. If your handy with a soldering iron, they're quite easy to fix.
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