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Front blower dead! its not the fuses. what should i try next?

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Try a blower motor resistor, however a resistor will usually cause the motor to work only on one speed. I would seriously consider the blower motor itself, a little premature to fail on a 2005 but I've seen stranger things happen

Posted on Dec 12, 2009


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1995 Geo Prizm. A/C works and is properly charged but fan won't turn on. also speedometer doesn't work and longer.. any correlation?

blower fan in dash.
fan on RAD
fan in front of ac condenser in front of car.
does the fan in dash blow , on high?????????
does it? if not say so.

the car is Corolla,
and same car.
and works same.
when the Blower dies, in the dash , the A/C will be cut off fast.(but not if blower is dead)
this is normal for blower dead. (power to it, dead )
this is to prevent icing up of the evap core (might crack it)
are both speedo and odom are dead?
why not say so/?

26232154-4g1iytzfkimywqjfw30jhjyb-3-0.jpg rule 2, if the dash blower blows on high , its not the resistor block

on high the resistor block is bypassed,
if blower works and that center fuse below blows, the AC goes dead because 12v dont make it to the the clutch relay.
if top fuse below blows, a./c and blower die. even on high.
you can see all this stuff on mitchell's, if you want. as most do.

btw , the a/c compressor may work , if the the blower has power, but the blower is burned out.
the A/C amp logic module sees the 12vdc leaving the switch and assumes the blower works.
this rule on blower on, is to keep the core from icing over, and that can bend things.
that resistor block is air cooled, and is on the fan chamber to get cooled that way, if not it burns up.
but why not tell us if the fan works on high.
that way we save 90% of all BS guessing.
why not?

first is fuses.
then if fan blows on high only, then the fan is ok and the resistor block is bad.
if blower dead on high, the blower is bad,
the fuse blown or the wires to it are bad or the switch,
what a tech does is use his voltmeter, a $10 tool.
if you have 12vdc to the motor then the fan is history, dead.
if not, 12vdc there, fan on, then you work them meter backwards until you find the open circuit.
really its that simple.
if confused ask quesitions.
if you cant test the fan on high, tell why?

Jul 05, 2016 | 1995 Geo Prizm

1 Answer

2001 Ford Expedition EB front ac blower not working

Check your blower switch look for burnt wires.

Jun 21, 2017 | Cars & Trucks

1 Answer

Heater has stopped working

(1) possible blown fuse.
Note that fuses blow for a reason - seek out the reason, or it will blow its new fuse too.

The main fuse block is located inside the left side of the engine compartment near the battery. There is also an interior fuse panel located just above the left side kick panel.

Interior Fuse Panel
The interior fuses simply unplug from the fuse panel. Use the fuse puller tool provided with your car to remove fuses from the panel. The tool is located on the back of the interior fuse panel cover.

(2) possible blower motor dead. See maintenance manual excerpt below.

(3) possible blower motor relay faulty. Location of Blower relay:
Under hood, drivers side, front engine area,rear of headlight housing; relay mounted on drivers side of radiator shroud.

1990-92 Mazda 626 and MX-6
See Figure below

  1. Disconnect the negative battery cable.
  2. Remove the glove box and the underdash cover.
  3. Detach the electrical connectors from the blower unit.
  4. Remove the blower unit-to-fire wall attaching bolts and remove the blower unit assembly.
  5. Remove the blower motor fan-to-motor fastener.
  6. Remove the blower motor-to-unit attaching bolts, then remove the motor.
  7. Installation is the reverse of the removal procedure.

Feb 01, 2011 | 1991 Mazda 626

1 Answer

How do you change the front blower motor in a 2006 jeep commander? it's gone out twice now since we bought the jeep. the first time we had a mechanic fix it because it was under warranty. but now it's gone...

why not post the symptoms.? (all, not just dead) on all speeds?
the front just unscrews. its not hard, at all. nor worth 500 bucks.
but was that $450 for motor and $50 install? cant guess that ...

did you check all fuses first (in all fuse boxes , not just one)?????
FRONT OR REAR system? wow, with not symptoms i cant guess.
blow dead on HIIGH speed,
is it manual option or climate control HVAC option?
ATC or MTC systems (a means auto, m = manual)
did you replace the blower resistor first, if low speed fails.
did the hot wire test on blower fail, , ? do say this, as wasting a non good blower, is "over the top"

ill guess, front
  1. Disconnect the negative battery cable.
  2. Remove the instrument panel silencer from the passenger side of the instrument panel.
  3. Remove the glove box from the instrument panel.
  4. Disconnect the blower motor wire harness connector from the blower motor power module or resistor, depending on how equipped.
  5. Remove the three screws that secure the blower motor to the HVAC housing.
  6. Remove the blower motor from the HVAC housing.
rear is 16 steps. so..............................

all answers by me are USA cars, (usa forum it is)
and non Diesel, yes, its diffr.

now things that cause (hot wire to blower passes my tests)
failures of blower
  1. blower relay bad,
  2. input to relay wrong.
  3. fuse blown PDC #1 F1.
  4. A/c controller not commanding blow. there are 2 of these. modules.
  5. lots more but i need your unstated facts first. all of them.
all this and more is in the FSM book or at diy for $15

Fuse 1 good , use a scan tool yet, to see if there are errors>?

Relay PDC relay blower motor front has 12vdc on in 87
ill pretend MTC, system
the 12vdc above goes to the blower, pin 1, is it>?
then the controller grounds pin 2 of blower on high
does it 0v? there? , it does so via ground G200.
if not its bad or the switch to it is bad.
the resistor block does not kill HIGH speed ever. cant. do that.
so is controller, or its switch bad, if not 0v here.
(keep in mind, my hot wire test passes on the blower )O

if 12vdc is at pin 1 on motor
you can jumper pin 2 to ground, fan will blow on
high, if not blower is bad (front)
it if blows now then the controller is bad or inputs wrong to it.
simple huh?


Jan 14, 2011 | 2006 Jeep Commander

2 Answers

91 Volkswagen Jetta. Blower problem or fuse box problem.

sounds like somebody had the wrong fuse rating and now has burnt the blower motor out,roady932

Feb 13, 2010 | 1991 Volkswagen Jetta

2 Answers

Front blower motor stoppeed workin, replaced teh relay and fuse in the fuse block. Still have nothin

you wont till you replace the blower motor it self i owned a few of them and the blower motors do go out without any notice

Jan 15, 2010 | 2005 Dodge Grand Caravan

1 Answer

The blower motor for my 2005 Suburban suddenly

Check voltage at the terminal that connects the blower if the problem is the current blower because eventually the brushes wear out

Jan 09, 2010 | Chevrolet Suburban 1500 Cars & Trucks

1 Answer

Heater fan on 2002 Yukon does not operate in front, only rear.

The front blower motor is controlled by the blower resistor module.This is usually the problem with the front blower not working.I looked up the schecmatics and I don`t see separate fuses for the front and rear.But the fuse for the front blower is in the under hood fuse block.If this is good then The problem is probably the resistor module.It is next to the blower motor.The connector from the resistor connects to the blower motor.If you want to confirm this you can check for power and ground at the blower motor connector when you activating the blower switch on.This can be done with a test light.Make sure you have power going into the resistor module also.If you have power going in and no power at the blower motor then replace the resistor.Hope this helps.Good luck.

Dec 28, 2009 | 2002 GMC Sierra C/K1500

1 Answer

Have a 2004 Dodge Caravan and one minute the front blower fan works great, and the next - nothing. It appears that the fuse is fine. What are my next steps?

There is a relay that provides hot to blower when requested from front control module. The ground circuit comes from the control head through the resistor block for the speed's. If voltage is present on the black wire ground the green wire and the blower should run.Most likely resistor is defective.most common.

Aug 19, 2009 | 2004 Dodge Caravan

1 Answer

1999 yukon denali front blower motor not working

Check Fuse #3 in the under hood fuse block it is the only common connection I can make.

Jun 28, 2009 | 1999 GMC Yukon Denali

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