Question about 2005 Toyota Corolla

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Blower motor is not getting power. I've replaced Blower motor and resistor. I've replaced all fuses in the A/C system. Checked the fan relays as well. Any ideas?

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  • Contributor
  • 42 Answers

I've been with Toyota 25 years before retiring in 2008-I have never had no power to blower motor-the only thing is low speed inop cause burn't resistor-motor occasionally dies & or gets stuck with mouse nests/Kleenex from glovebox. If you are sure it's not getting power then1 of those things may have blown a fuse(don't ask me which or shorted(very rare) I'm thinking it's a salvage car and then anything is possible-all you can do is get a scematic/tester and start tracing pos/neg back from blower. Good Luck-John T

Posted on Apr 13, 2015

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  • Toyota Master
  • 2,428 Answers

When you say blower motor you mean the motor that blows heat into the cabin inside the vehicle not the cooling fans for the radiator. I ask because mention relays /more then 1
I find that with blower motors its usellyI not the motor or resistor .The motor will spin with no bearings left in it will make a lot of noise but spin .The resistor olny on most vehicles comes into play on high speed setting olny .
The most common problem is bad connections to the motor it self 9 out of 10 times .Turn the key to run don't start but the fan control on high start wiggleing the connector and the wires around if the motor starts to spin this is the problem .
If not that 1 out of 10 times is likely related to the INT control switch eighter the switch is not being feed power or the switch is shorted inside .
Do you have a test light HOT to GROUND or a muility meter if so you can test for voltage to the connector that plugs into the control switch .No voltage then the problem is fearther back in the system .
Problems like this need some though before things are replaced . You need a starting point a basic understanding of how the circuit works . You start replaceing things to early you end up lost .
Try the wiggleing connector thing its likely your problem.

Posted on Apr 11, 2015

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Posted on Jan 02, 2017

  • 691 Answers

SOURCE: I?ve had many blower fan motor failures in such a short time?

the car operate nothing more than 12V systems. your alternator will also put out same amount of voltage to recharging the battery. there is no step up transformer in the vehicle to get more than 12V maybe a bit more but will be way under 13V, since it happened to the same car and type, I would say its the manufacture default. Ive have experienced same issue like yours on new parts, my suggestion is to change the brand. some manufacture after market company will build them as cheap as possible cutting corners to save cost. Inside of the motor what common parts fail is the contact brush, it can short or burn out over times, sound like what ever that manufacture are using is fairly cheap. since it happened to both car putting out the same amount of voltage my guess would be manufacture problems otherwise your radio and computers (ECU) will also be affected if the car somehow putting out more than 12V.

Posted on Sep 20, 2009

drsinister69
  • 2317 Answers

SOURCE: replaced resistor, blower motor still does'nt work

Check to see if there is power at the plug for the blower motor, if so, the motor is probally bad.

Posted on Mar 06, 2010

  • 6 Answers

SOURCE: blower fan not working at

check the freon there are high and low pressure swithes and will prevent a/c from workin
to protect compressor

Posted on Dec 19, 2010

  • 3911 Answers

SOURCE: My 99 Camry has done

you know the thing has run 400k miles, that is 300k past it designed life. break down and buy a new fan for it, it will set you back about 60 bucks. if you can replace the resistor, you can change the fan. a new set of plugs, plug wires, and a set of tires may be warranted as well.

Posted on Jan 12, 2011

Hobbit_who
  • 2044 Answers

SOURCE: 2001 sequoia front ac blower not working, blower motor is OK

Sounds like a Controller Issue with the Climate Control. Seeing that you applied power and it worked, then it is not the Motor.

UNLESS you try it on ALL SPEEDS and if it then does not work, you have an Input problem.

If it only works on ONE SPEED, then you have a Resister Issue for the Blower

Posted on Apr 06, 2013

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I don't have a diagram for a 2008. On 2005 models the blower motor relay gets power from a 30amp fuse.
When the blower switch is in the high position the resistor is bypassed and power flows directly to the motor. The motor is grounded to the car.
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1 Answer

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Locate the blower motor and look around the outside and close to the motor for a 2-by-3-inch plate held on by two or four small screws. There will be an electrical connector plugged into it with five or six wires, depending on the vehicle type and heating and air conditioning type of control panel.
Test the resistor before replacing it. It is always recommended to test any electronic unit before replacing because there are a multitude of things that could cause the same symptoms. It only takes a few minutes and can qualify the assumption that a part is bad. It will save money to replace or repair the right part the first time.
Check the speeds by turning the fan conrol to all positions. Take note which fan speeds work and which speeds do not work. If the fan works only on one speed the blower motor resistor is very likely bad.

Check the fuses if the fan speeds do not work. The fuses for the interior heating and air conditioning fan are usually under the hood in the fuse and relay center. If the fuse looks good, then take it out and turn the ignition key on and use the volt meter set at 20 volts DC. Check to make sure that there is voltage to the fuse. If not, check for an open circuit to the fuse.

Check the relay to determine if there is power at the fuse. The relay should have two of the four terminals showing power. With the key on and the fan turned on, remove the relay and put it back in, listening for it to click. If it does not click, then replace the relay.

Check the voltage at the electrical connector on the blower motor resistor to see if the fuse and relay are good. Make sure that power is present at the connector with the key on and the fan switch on. There should be power at two terminals of the blower motor resistor. If only one terminal has power, replace the resistor. If two terminals have power, replace the blower motor itself. Remove the screws and unplug the connector to remove the blower motor resistor. Put the new one in its place by screwing it back in and plugging in the wiring connector.

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