Question about Toyota Yaris

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Check engine light always on and cold temperature light on and fan always running,2012 yaris 1.0Xi,what is wrong?

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Looks like the coolant temp. senor is not working.
change it and it will be fixed

Posted on Apr 29, 2017


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Why does the fan stay on my Toyota Yaris 2004.

my guess radiator fan.
the CEL lamp is on, "? running,that means there are huge errors stored, why not scan it, a tool is like $10 (ask) or free scans at all ASE shops.
no man on earth an surely blind here can answer that question,wow.
is it drivable after all we dont know what is wrong yet,cart before horse its called.
im sick ,can i ski dive:/ heck i dont know.?
the fans on most cars do stick on, parked, hot, this is a FEATURE
even the fan shroud shows that, (fan may start at any time)key off.and on.

the fan on 24/7 means engine is overheated
or has failed.
we connect scan took ,ahh not overheat,

Dec 27, 2014 | 2007 Toyota Yaris

1 Answer

Power steering

P/s light? (are all fan belts good?)
do head lights glow bright on demand?
do all dash cluster lamps glow, key on,? and the CEL lamp???????
then the CEL goes out when engine starts and runs??? says out>?????
the engine is stalling. does it stall hot and cold engine?

there are 50 causes for that.
and 4 major systems to test. do you have tools. an meters and gauges to check engines.? if not get a mech, that has that
if you want to DIY , then get the tools.
ill list the 4 systems. (not each test)
1: 12vdc power to the whole EFI system.
2: good compression
3: lost spark.
4: bad fueling

there are test to find the 4 paths. #1 is easy a voltmeter will tell you good or bad.
check all fuse first. as always,

Jan 31, 2014 | 2007 Toyota Yaris

1 Answer

Trac off light is on and check engine light is on, toyota yaris 2012

You would need to have the engine computer checked for trouble codes to proceed. The trac light off would be on anytime the check engine light is on.

Jan 24, 2014 | Lexus GS 300 Cars & Trucks

1 Answer

2004 sunfire cooling is always on when the car is running

The cooling fan is controlled by a temperature switch located on the radiator or on the engine. When the temperature of the coolant exceeds the switch temperature rating, the switch closes and energises a relay that switched a voltage to run the fan and it will continue to run until the coolant temperature drops back below the opening point of the switch. In your case, you may need to have the cooling fan replaced.

Nov 21, 2013 | 2004 Pontiac Sunfire

1 Answer

Radiator fan will not turn off on a toyota yaris

EOBD II Error Code: P0117
Fault Location:
Engine Coolant Temperature (ECT) Sensor - Low Input
Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
Coolant thermostat.
Wiring short to earth.
Engine coolant temperature (ECT) sensor.

Nov 25, 2012 | 2004 Toyota Yaris 1.0

2 Answers

Heat gauge goes way up,then by reeving motor it will go down.blows cold air

Check out related help links with solutions to troubleshoot the problem:---
Click the link below:---
2004 Toyota Tundra: Oil Gauge and Temp Gauge Not Working?

Toyota 4Runner: Temperature Gauge Sensor

Temperature gauge sits over half way mark?
Heater blows intermittently and temp gauge goes erratic?
------------- No heat on Oldsmobile Silhouette?
Temperature gauge does not move and no heat when heater is ON?
Temperature gauge keeps fluctuating up and down close to red?
----------- Temperature gauge on the dash quit working on Pontiac Grand Prix?
Dodge neon gauges not working?

Heater blows cold?

Heat blows cold on drivers side and hot on passenger side?

1992 Lexus LS400: Engine overheats, Antifreeze out of reservoir and heater Blows Cold Air?

These details will help.

Nov 22, 2012 | 1997 Ford Taurus

1 Answer


That the temperature gauge,you engine is cold,and goes off when the engine is warm and at its optimal performance temperature,now if it goes red when your driving then thats a warning its overheating,

Aug 23, 2012 | 2001 Toyota Yaris

1 Answer

The radiator cooling fan is always on ?

Is your AC on (AC compressor activated)? Try switching that off and see if it still runs.

Feb 24, 2010 | 1995 Toyota Camry

1 Answer

I have a toyota yaris 1.0 on 2001 it has a blue i think water temperature light popped up do i need to worry

Make sure the radiator is full when the engine is cold.Also check the over flow bottle to be sure it is full to the specified line.If they are both OK then the water temp. sensor may be defective.

Nov 05, 2009 | 2007 Toyota Yaris

1 Answer

2007 yaris will not change up to top gear when cold. Is this a problem ? Dealer says it is built in to warm the engine quicker !!!!

The dealer is wrong. 100%.

Here is the actual reason why it does not shift until warm:

The final upshift is determined by engine temperature. The final shift is prevented from occuring until the coolant temperature reaches 177 degrees F. This is done thru programming in the engine computer. The reason why is: the engine produces a larger pollutant output when cold, in the higher gears. Keeping the last shift from happening decreases the load placed on the catalytic converter. It is really all about controlling emissions.

I hope this helps you out.

Thanks for choosing FIxYa for a solution to your problem. A "FixYa" rating (4 blue diamonds) would be greatly appreciated for my assistance to you. Thanks!

Feb 22, 2009 | 2008 Toyota Yaris Sedan

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