Question about 2005 Mazda 2WD B Series Pickup
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Posted on Jan 02, 2017
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
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
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
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
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