AC relay location

SAILINGKENNY

MEMBER
2005 TOYOTA SIENNA
6 CYL
2WD
AUTOMATIC
120,000 MILES

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?

Tuesday, April 26th, 2011 AT 5:47 PM

6 Replies

WRENCHTECH

MECHANIC
20,757 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.

Image (Click to make bigger)

SPONSORED LINKS

Was this

answer

helpful?

Yes

Tuesday, April 26th, 2011 AT 6:18 PM

KOHLLINK

MEMBER
80 POSTS
1999 TOYOTA SIENNA

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

Was this

answer

helpful?

Yes

Monday, July 8th, 2019 AT 3:56 PM (Merged)

DOCFIXIT

MECHANIC
18,828 POSTS

AC amplifer controls clutch no relay

Was this

answer

helpful?

Yes

-1

Monday, July 8th, 2019 AT 3:56 PM (Merged)

RASMATAZ

MECHANIC
75,992 POSTS

Its the AC Amplifier that powers the magnetic clutch

Was this

answer

helpful?

Yes

Monday, July 8th, 2019 AT 3:56 PM (Merged)

KOHLLINK

MEMBER
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?