Question about 2005 Mazda 2WD B Series Pickup

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2005 Mazda B3000 Blower only works on speed 3 & 4, not 1 & 2. Tried new blower motor resistor, checked fuses, changed switch and it still doesn't work on lower speeds. Seems to have power at switch for all speeds. Any ideas what else could cause this problem?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 154 Answers

SOURCE: Blower motor has only low speed

You may need to get the correct resistor, as they are designed to only allow so much amperage to go through them. If it is getting very hot it is runnig to many amps through it. It will eventually blow and you will need to replace it anyway.

Posted on Jul 28, 2008

keemo68
  • 1263 Answers

SOURCE: 2004 Chevrolet Silverado Heater/AC Blower on without Ignition ON

there is no relay for the heater fan it's a 15 amp fuse and is on the accessories circuit. the reostat is responsible for all 3 speeds .with the key off there should be no voltage to the blower motor whether the fans speed fan switch is on or off. the fuse will be located in the fuse paneleither on the drivers left side in the dash or underneath the dash in the fuse block. you have a short in the harness that is under the dash and most likely it's a bad plug on the harness. your going to have to do some searching but that's where the problem short is... please rate

Posted on Oct 04, 2008

  • 1 Answer

SOURCE: 2005 GMC Envoy SLE blower fan speed #5 is not working

More than likely this should just be your resistor. You have different sized coils on the back of your resistor for all the different fan speeds. if one of them burns out or breaks then that certain speed will not work.

Posted on Feb 03, 2009

chuck943
  • 783 Answers

SOURCE: Location of blower motor switch resistor on 2004 Grand Marquis

The blower speed controller is located under the hood on the right or passenger side on the heater housing just to the side of the heater hoses near the very back of the right cylinder head.
Yes that would cause the concern you are having.

Posted on Feb 05, 2009

  • 24 Answers

SOURCE: 2001 Saturn L200 Sedan blower motor relay location

it's by the firewall pass side in the plastic blower box. Multi wire plug and two screws are showing.

Posted on Jul 22, 2009

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Blower motor not working on 4 1998 Mazda protege


check for power and ground at the blower motor. if this is good then hit motor. if it starts the motor needs replacing. then check the fuse then the fan speed switch for power and ground going to the switch and coming out of switch.

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Mazda bravo 2.5TD blower fan only works on speeds 3 and 4. Is it the resistor or the fan motor


ballast resistor for sure as this lowers out put to blower motor and increases power as your select a faster setting balast resistor shoud be located on motor or near by hope this helps phil

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Blower only works on speeds 3,4,5


there is a high blower fuse, check that first. fuse box under the hood marked HI BLO MOT 30 amps. if thats ok, maybe the blower relay is bad. marked HVAC BLOWER .....the lower sppeds use one fuse, hi speed uses another.

Sep 08, 2011 | 2005 Pontiac Grand Am

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My blower motor only works on 1 & 2 & 3 speeds dont work on 4 & 5. I was told to buy a blower motor. Need to know where this is located to replace on my 2005 Chevrolet Trailblazer


If your blower works at some speeds and not others, the likelihood of the blower motor needing to be replaced is low. The more common problems would be either the switch or the resister that regulates the motor speed. The resistor is usually located in the air duct under the dash.

Jun 17, 2011 | 2005 Chevrolet TrailBlazer

2 Answers

Blower doesnt work on all speeds


Step 1: Check fuse
Step 2: Change relay (usually can swap with another relay in the fuse box and try it)
Step 3: Check connection on switch
Step 4: Replace Switch
Step 5: Check connection on blower motor
Step 6: Replace blower motor

Chevrolet has a bad reputation for the connection and/or switch malfunction for the blower motor. I changed all 6 items in my truck in a 3 month span as all 6 appeared one right after the other.
Good luck.

Nov 11, 2010 | 2006 Chevrolet Cobalt

1 Answer

Blower fan will not work on # 2 position


first check the signal fro the switch to the resistor with a dvoln(volt meter) the check resistance or continuity on the resistor, if the no 2 is blown then the blower motor is probably drawing too much juice and blowing the resistor, which blew the first resistor originally

Jul 19, 2010 | 2005 GMC Canyon

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2005 gmc sierra blower wont turn on


Check the fuse first thing. If the fuse it good then either the blower motor speed control switch, blower motor resistor pack, or the blower motor itself is bad. Normally the speed control switch rarely goes bad. If some of the speeds did not work prior to total failure then the resistor pack is bad. If that is not the case then apply 12 volts directly to the blower motor to see if it is good. If it runs suspect the resistor pack as the culprit.

Jul 15, 2010 | 2005 GMC Sierra

1 Answer

2005 Trailblazer EXT. Blower speed control not working...


Problem with blower motor is the blower motor resistor. They are usually located next to the blower motor, a couple of screws and a couple of plugs and your done. Autozone sells them for around $30 each. Wipers you may want to check for relays under the hood in the fuse block. There may be 2 relays 1 for low and 1 for high. I have switched relays from other working accesories and got wipers to work. Sometimes bad connection.

Mar 19, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

Heater blower stopped working, it was intermittant for a while now does not work at all in any mode.


1. Check your fuse and/or relay for the blower motor. Unplug each one, inspect and replug it back in and recheck operation of the Blower Motor.
If that does does not fix the problem:
2. Locate the Blower Motor Resistor. It should be adjacent to Motor, and has 3-4 wires going into it.
The system works: Switches to Resistor to Motor.
Unplug the Resistor and check for voltage there. If there is voltage: Then the switches are good. If no voltage: the switches need to be checked.
3. Replug the resistor back in and disconnect the electrical connection/power going to the blower motor itself. Check for voltage coming from the resistor. Use the switches to change speeds and recheck each time for voltage. Go through the entire range of speeds on the switch. The voltage should fluctuate, increasing with each higher switch speed selected. If there is no voltage then the resistor is bad and needs to be replaced. If there is voltage and fluctuation with each speed, then the Blower Motor itself is bad and needs to be replaced.
4. Another (very different) way to check the Blower Motor is to take a verk long piece of heavy gauge insulated wire and connect one end of the wire to the positive side of the battery. Connect the other end or the wire to the Blower Motor. If the Blower Motor comes on, then it is not the Motor, but either a switch or resistor problem.
Let me know if this helped, or if you have additional questions, problems or information. Feel free to contact me at FixYa.com!

Jan 28, 2010 | 1996 Ford Explorer

1 Answer

Blower motor wont work


Disconnect connector at blower under pass side of dash.Check for power & ground with the blower switch in the #4 speed (High).Most Likely a blower motor if all 4 speeds are out.If high works but no other speeds,you need a blower resistor.Blower easy to change 3 screws & one connector.hope this helps

May 19, 2009 | 1993 Saturn SL2

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