ac relay location

2005 TOYOTA SIENNA
120,000 MILES • 6 CYL • 2WD • AUTOMATIC
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SAILINGKENNY
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  • 1 POST
I have intermittent AC operation. I've checked the pressures which seem fine, flushed & cleaned condenser coils and swapped AC and heater relays but unit still works intermittently. Is there a clutch relay somewhere ?
Apr 26, 2011 at 5:47 PM
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WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
Here is the location of the relay. Don't overlook that is could be just a weak compressor clutch also. Here is a guide to help test it with the location of the relay in the diagrams below.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Apr 26, 2011 at 6:18 PM
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KOHLLINK
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  • 80 POSTS
where is the a/c mag clutch relay located on a 1999 toyota sienna le. The relay fuse box under the hood next to the battery doesn't show it on diagram
Jul 8, 2019 at 3:56 PM (Merged)
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DOCFIXIT
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  • 18,828 POSTS
AC amplifer controls clutch no relay
Jul 8, 2019 at 3:56 PM (Merged)
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RASMATAZ
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Its the AC Amplifier that powers the magnetic clutch
Jul 8, 2019 at 3:56 PM (Merged)
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KOHLLINK
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  • 80 POSTS
a/c compressor runs for a few seconds and then the a/c light starts flashing.I jumped the compressor 37 psi low and 170 high.a/c blows cold.what would cause the a/c light to flash? Bad sensor? a/c amplifier gone bad? Is there a low pressure sensor I can check?
Jul 8, 2019 at 3:56 PM (Merged)
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DOCFIXIT
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  • 18,828 POSTS
Not pressure sensor when light blinks if belt not slipping then amplifier is likely
Jul 8, 2019 at 3:56 PM (Merged)