Okay speed up here as we go to bolt it back in. Now just use a Phillip's screwdriver to remove the two screws that hold in the resistor. On both the connections the green one we did before and this one, there's a little tab that you just press with your finger and then work the connector out. Use a 10mm socket with a ratchet and extension. We're going to speed up as we remove those six bolts. We've got one here, one here, one here, one here, one here, and that one. As you pull the panel back you can see the rear blower motor. There are a few pins and clips that hold it in place. Use a small flat blade screwdriver to remove the little trim door and a Phillips screwdriver to remove the screw. Then pull it up and just move it out of the way and to the side. Now, on this lower panel you want to pull out on each side. Use a small screwdriver to pry off the little plastic trim panel, and then a 12mm socket or a wrench to remove the bolt that holds that in. Then use a Phillips screwdriver to remove the screw. You need to use a small screwdriver to pry off the little cap that you'll see. There's a small hook down low near your rear compartment for the cargo net. You'll need a small flat blade screwdriver, a Phillips screwdriver, and a socket and ratchet with 10mm and 12mm sockets. If on your rear A/C and heat you've lost some control of a fan, maybe it works on the number one setting or the number four setting but it doesn't work in the in-between settings, then you'll need to replace this part. In this video, we're going to show you how to replace a rear fan blower resistor. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of. Now, if the resistance is within specification, then we need to continue on to the next test (which is testing the power transistor diode).Brought to you by, your source for quality replacement parts and the best service on the Internet. If the resistance IS NOT within specification, we can conclude your Honda Civic's blower motor power transistor is bad and needs to replaced. In this first test, we're gonna' check the resistance of the resistor inside the blower motor's power transistor with a multimeter in Ohms ( Ω) mode. TEST 1: Testing The Blower Motor's Resistor Provides varying current to transistor base to increase or decrease fan motor speed.Ĭonnects to blower motor connector pin #2. Blower Motor Power Transistor Circuit DescriptionsĬonnects to heater control panel pin 8. This is due to the fact that the blower motor power transistor does pretty much the exact same job as the old style resistors of vehicles of the 80 and 90's. The blower motor power transistor is commonly referred to as the blower motor resistor when in the true technical sense it isn't a resistor.
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