yaris 08 sedan ac stuck on - Toyota Yaris Forums

joe31 · 08-31-2015, 09:00 PM

the ac in my yaris 08 is stuck on, since winter is coming its not very practical.
i've try to unplug the little wire plug that enter the top front end of the ac and it shut down.
As I see it ( correct me if i am wrong ) this wire feed the ac clutch, so the problem doesnt seems to be machanical but electrical.
do this circuit have a relay on the ac clutch line , if yes where is it??

CTScott · 09-01-2015, 06:42 AM

Correct. That wire is the power to actuate the clutch. The AC will always run if you have the position knob pointed to the windshield.

joe31 · 09-01-2015, 05:13 PM

feel so stupid had the car since 4 years and never notice that the ac is always on when on defrost

thanks

bronsin · 09-02-2015, 06:25 AM

Yeah they really should make that more obvious.

shepd · 09-02-2015, 11:27 AM

It's a feature in most modern cars (a feature I've disabled more than once because I'm cheap and frankly, it doesn't do enough to be worth losing the mileage and putting the wear on the compressor all winter). In fact, most of my driving has been without A/C defrosting in the winter (cars without A/C, cars with broken A/C, cars that had really easy to disable A/C).

08-31-2015, 09:00 PM	#1
joe31 Drives: yaris sedan 08 Join Date: Jul 2015 Location: Canada Posts: 2	yaris 08 sedan ac stuck on the ac in my yaris 08 is stuck on, since winter is coming its not very practical. i've try to unplug the little wire plug that enter the top front end of the ac and it shut down. As I see it ( correct me if i am wrong ) this wire feed the ac clutch, so the problem doesnt seems to be machanical but electrical. do this circuit have a relay on the ac clutch line , if yes where is it??

09-01-2015, 06:42 AM	#2
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	Correct. That wire is the power to actuate the clutch. The AC will always run if you have the position knob pointed to the windshield. __________________

09-02-2015, 06:25 AM	#4
bronsin Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008 Location: nj Posts: 4,790	Yeah they really should make that more obvious. __________________ Synthetic Oil: Its All In Your Head

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09-01-2015, 05:13 PM	#3
joe31 Drives: yaris sedan 08 Join Date: Jul 2015 Location: Canada Posts: 2	feel so stupid had the car since 4 years and never notice that the ac is always on when on defrost thanks

09-02-2015, 11:27 AM	#5
shepd Drives: 2007 Yaris 5 door RS Join Date: Nov 2014 Location: Kitchener, ON Posts: 178	It's a feature in most modern cars (a feature I've disabled more than once because I'm cheap and frankly, it doesn't do enough to be worth losing the mileage and putting the wear on the compressor all winter). In fact, most of my driving has been without A/C defrosting in the winter (cars without A/C, cars with broken A/C, cars that had really easy to disable A/C).