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9 out of 10 times its the heater fan resistor doing this. it has wires that corresponed to diffreent speed settings for heater fan. the resistor is beside the blower motor, Your Kia Sportage Blower Motor Resistor controls the heating equipment in the
vehicle by opening and closing the fan motor. The Kia Sportage Blower Motor
Resistor allows the heating and climate control system to control the speed of
the vehicle's cooling fan. its under the passenger side glove box. undo 2 screws and disconnect the electrical connector. thats it!!
Sounds like you have a bad blower motor resistor. The resistor is located near the blower motor under the passenger side of the dash. The resistor uses a series of resistors to drop voltage which makes the blower run at different speeds. High speed bypasses the resistors and allows full voltage to the blower motor.
Hi, hope the folowwing will help i found on internet if not email me at email@example.com. My service manual say its in the upper leftside of the heaterbox. remove lower left dash trim panel (drivers) and pull out resistor pack.
Fixing BMW E36 Blower Fan Speed . . . DIY! It has been two weeks since my blower fan stopped working correctly on the low speed options (1, 2 and 3 ). It only works on high speed (Option 4). At first, I thought that the problem was in the fan speed switch because I’ve seen this problem before and when I told my electrician about it, he disassembled the switch and tried to clean it. Of course this solution didn’t work. So, I’ve decided to dig for the solution myself and I found that this is a pretty common problem among E36 cars. The problem is that speed 1, 2 and 3 are controlled by something called (Final Stage Unit on digital climate control units, Blower Resistor Pack on analog climate control units). The 4th speed is actually uncontrolled, so, it simply bypasses the final stage or resistor pack units. That explains why the fan works on the 4th speed and not the other lower speed options. Anyway, I tried to find a DIY (Do It Yourself) procedure on how to fix this problem and I found one that was written by "Deem3" on bimmerforums (thank you Deem3 for the great write-up). Now take a look below. It’s a really simple procedure. I will be trying it this weekend to see how it goes. I will post more details about this job soon.
Symptoms (2 cases): - Digital Climate Control: All the lights on your digital climate control are working and the buttons respond but the blower doesn’t blow any air. - Analog Climate Control: The blower doesn’t work except on the highest speed (4th position).To replace it, we need to take off the driver’s side knee bolster. This only requires you to remove two screws,one on the right side of the bolster and one on the left. Using the phillips screwdriver remove the following screws. Now remove the speaker and footwell light. Using the 10mm socket remove the 3 bolts holding the metal shield. And using the phillips screwdriver remove the obd2 port. Now you should be able to see the footwell air duct. Remove it by pulling it. With everything out of the way you should now be able to see the defective final stage unit. Remove it using the torx-20 screw driver. Replace it with the new part and before you put everything back turn on your car and test the blower. If everything is ok proceed to put everything back, and enjoy the benefits of having a blower in your car again. .
Click on the link for part of wiring diagram for your blower motor. The speed control is on ground side of blower motor. At the moment, I suspect a resistor problem. Replace resistor pack or do some testing, to verify.
Using a voltmeter, the resisted voltage values for the fan motor are as follows:
LOW- 3 VDC
Med LOW - 6 VDC
Med HIGH - 9 VDC
High - 12 VDC
The fan resistor gets 12 volts from each position of the fan switch, and the 12 VDC is then lowered thru each of the 3 internal resistors inside the fan resistor. My guess is that the resistor has failed, and the resistance wires contained on it may have meshed together. The resistor is on the black box between the blower motor housing and the center of the dash. 2 phillips screws hold it in. Easy to remove/replace. Hope this helps, and thanks for choosing FixYa.