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Re: Have no air at all coming from blowers on Honda civic...
Transistor then. Its the same thing as the blower motor resistor just a different name. This is a easy fix. Simple if you have good instructions.
First you need to remove the dashboard lower cover. This is located under the glove box covering the blower motor and your ECM/PCM. Gently pull down at the edges nearest the glove box. 4 clips should pop. Now just pull the cover tword you and it will slide out of the holders.
Now you need to remove the glove box. Do this by opening it. Look on the side of the glove box you will see one bump stop on each side. Pull those in tword the middle of the glove box. Now it should hang all the way down. You will see two bolts around the hing of the glove box. remove both of those bolts. They should be a 8 or a 10mm bolt.
You should be able to see the power transistor now It will be to the lower left side of the blower motor. It is held in by two screw and has 4 wires going into it. It will be facing outward tword you.
The color of the wires going into the motor will be black, blue/black, blue/yellow, and blue red.
You may not even have to take the glove box out. Once you take out lover dashboard cover check and see if you can see the blower transistor.
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The resistor is under the dash on the passenger side close to the center console. It is built into the air passage and held in place by two Phillips head screws. It faces back into the passenger compartment, not the floor. It has a four wire cable going to it. Remove the cable, remove the two screws, and pull it out. The resistor module has an aluminum heat sink to dissipate the heat that is generated when you choose a setting lower that full speed.
Best way to make sure the right thing is fixed is to bring it to a dealer. Usually the only thing that stops the air flow is a malfunctioning blower motor, but what causes this is usually the blower motor resistor pack.
You have a faulty blower motor resistor. Usually they're located on the blower motor or behind the A/C controls. The resistor controls speed settings. When they become faulty (common) certain fan speeds don't work or all speeds may fail at once.
A blower motor resistor regulates the AC and heating system for your car by controlling the blower motor. Without a blower motor resistor in the car the ventilation system will not blow well or not at all. Fixing the blower motor resistor should help fix the climate control mechanism. This is located behind the glove box near the cabin air-filter. If you want to do this yourself, there are how-tos on youtube such as this one here.
Hi, it could be the switch, but it's usually the resistor. Remove the glove box and unscrew the resistor from the top of the blower housing. Pull the resistor out and inspect for heat damage. If it looks good, please get back to me for test procedures. Otherwise, replace the resistor.
Hello saleh. In your Honda there is a resistor that controls the blower speeds. The resistor is partially burned out causing the loss of speeds. Sometimes this can happen due to corrosion but it is also possible a warning that the blower motor is drawing too much power and burning the circuit. The blower fan flow helps to cool the resistor as it does get hot from the resistance. The resistor is mounted in the airbox on the right side below the dash. You may need to remove the glovebox to access it.
There is a blower motor under the dash, behind glovebox. Loosen 3 retaining screws holding motor housing, drop motor housing and blower motor unit. Replace blower unit. The problem involves the blower resistor. This piece must be replaced but might be easier to replace the entire blower motor unit.
Thanks for using FixYa. The possible causes due to which the blower is not working normally are fuse, blower resistor or a bad blower motor.Test the voltage at the blower with a test light. Please check the motor relay switch fuse under the dashboard. Use a multi meter to measure ohms for continuity. If these are fine, bypass the blower motor relay switch to make sure blower motor is running fine. Motor relay switch is right next to radiator fan relay switch under the hood. Pull out the blower motor relay switch to see 4 female pin holes. Test the relay switch using a 12 volts power source and a multi meter to measure continuity. If fan works after jumping the pin holes, then blower motor is fine but relay switch may be faulty. You may also need to replace the blower motor resistor. If still the problem persists, then you need to replace the blower motor.
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if the fan is on and u get no heat have you tried to replace the thermostat , they gum up and stop working properly after awhile and that's the cheapest thing to try next..if the fan isnt coming on try tapping the blower motor maybe the brush's are froze and need a good tap on the housing to kickstart it..