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Yaris hybrid ac and fans doesnt work properly please advice.


miotech
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Hello i have yaris hybrid 1.5 engine

car is around year 2012 i think

Air fan which is outside which is for the water radiator doesnt run properly , also aircon fan as well..

when car is sitting in 1 place at idle for example air con works , fan for air con doesnt work. which is outside the car.

There is also no cold air inside the car so i guess aircon doesnt work properley , engine temperature is currently at around 94 degrees.,

what tests i can do with toyota software or any suggestions what may be wrong?

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You say the air con works but there is no cold air in car and the fan doesn't spin.

If the refrigerant has escaped the system will not work if it has never   been regassed its well overdue.

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How about my fans which are into the radiators ,

Air fan which is outside which is for the water radiator doesnt run properly , also aircon fan as well..

 

even if aircon gas has escaped at least 1 of these 2 fans should work properly otherwise my car will overheat.

 

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I think you are getting confused if there are two fans one is for the condenser the other for cooling the coolant the fan on the condenser will only spin if the AC system is working properly if the refrigerant is too low it will not work, your radiator fan has nothing to do with the AC system!

 

 

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If the engine hasn’t reached the set temperature and thermostat didn’t open to let coolant circulate through radiator and then the fans  failed to start rotating. The set temperature on some Toyota cars is 95C° , once the car reaches these the fans should kick in. If not than you may have issues, and you are right to worry about overheating. You can use obd 2 adapter and app on your phone to run a tests. Carista or similar adapter can be useful. 
If your ac it’s not cold it could be low on gas. You need to check that too in a garage. When ac is working the cooling fans does not spin all the time but instead they come on and off together with the compressor and you can hear them both, the fans and the ac compressor. 
You need to check both systems separately. 
Good luck 

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Elephant in the room - It's a hybrid

engine doesn't need to run as the A/C is electric, electric fan will rarely kick in as the engine will kick in and out so may not even open the stat, where are you getting the temp reading ?

Does the car have manual AC or Automatic aka climate

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So Its normal car to be at 94 deegres , and front fan for the water/ antifreeze not to spin at all at idle ?

 i have temperature reading at 94 from techstream.

 

you can use obd 2 adapter and app on your phone to run a tests.

 

Which tests i need to run exactly?

 

My current worry is  cooling the coolant fan, is there a way to test it or something if its work properly.

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As you have techstream go into utility and run a fan test, I take it you have run a TS health check that pulls all dtc's from every module

 

be aware if you are running the engine in Dynamometer mode it does not run the fans as it expect external fans to be used, iirc it also disables the AC

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Car is started normally what do you mean with dynamometer or iirc mode i dont use these?

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1 hour ago, miotech said:

Car is started normally what do you mean with dynamometer or iirc mode i dont use these?

"iirc" = if I recall correctly 

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I have not seen my coolant temp go above 80 decrees c up to now.

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I am driving in the summer,so can it be something wrong with my fan control is there a sensor or relay or something which can be checked with techstream ?

to me 95 deegres seems very high.

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95C° is very common thermostat temperature for many cars including Toyota. If you have stuck closed thermostat when your coolant reaches 95C° the thermostat fails to open to let coolant circulation through the radiator (second loop) and if this happens your radiator fans will not start and the only cooling will be if you use the interior heating and outside is cold. In the summer obviously no heating needed and the risk of overheating your engine is high. 
Test : start the engine and let it running for 20 -30 min with cabin heating set at max temperature and fan speed at lowest. The coolant temperature should reach 95C° , the radiator hoses top and bottom should be hot , and your fans should kick in, monitor temperature via techstream or phone app, if the coolant reaches or pass 95C° and radiator both hoses not hot and no fans not kicking in means you have a problem., with either thermostat, water pump or sensor, fan controller. You need to turn your heater fan speed at max and let it cool the engine, shut off and investigate. 

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Hah that reminds me of an old colleague who had to run his car with the heater and fan on at full, often with the windows down, in all seasons, due to a thermostat problem he was unable to solve :laugh: 

The things people would put up with back in the day...!

Then there's me, who got rid of a car essentially because the AC had stopped working. I feel such a wuss by comparison :laugh:  (But a much more comfortable wuss :tongue:  :laugh: )

 

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For the op. Hybrids need to be set in maintenance mode for that test. 
Basically it’s the same procedure as when coolant changes are done. 

For monitoring temperature can use Carista obd 2 or any other suitable adapter and phone app. 
Jere I waited an exactly when temperature reached 95C° the fans started to spin. 👌

image.thumb.jpeg.4785daa8bf34ba80c4f056b76915298b.jpeg

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95 is CTS, it will always read higher than the water at the stat, TBH i think you are chasing ghosts

it wouldn't hurt to do a fluid flush at this age, it has likely never been done

If it is a hybrid, the engine will not run for 20-30 min straight at idle if it does that is a sign the 12V AGM Battery is not long for this world (voltage maybe ok, but its capacity will be very reduced)

As i said, run a health check in TS - go into engine and click utility to run active tests

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