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Old 10-01-2011, 09:56 PM   #1
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Hi, im new to the forums and hoping for some help. I have a 97 cherokee sport that the blower motor doesn't work on. Tried changing the blower motor, control switch and relay, check fuses, all a no go. The only thing I can think of would be the blower motor resistor. Would this cause the blower motor not to work at all. I also checked the blower motor connector and it has no power going to it. I was also wondering which wire going to the control switch is the hot wire. Any help would be appreciated, thanks.
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Old 10-02-2011, 10:02 AM   #2
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i just replaced the motor and resistor in my 90 a week ago. guy at the parts store said i should replace the resitor with the switch and i verified that on the forum.
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Old 10-02-2011, 10:16 AM   #3
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I'm having the same problem on my 97 jeep I traced it all the way back to the ECU. So good luck
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Old 10-02-2011, 10:17 AM   #4
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Yes the resistor can cause it not to work at all. Its not hard to replace and pretty cheap.
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Old 10-02-2011, 02:56 PM   #5
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I agree that the resistor could potentially be the culprit here. It's truthfully a poor design and way too susceptible to moisture. It's located under the glove compartment screwed into the ductwork. You'll see a wiring plug stuck into a triangular black or grey module held in the duct with two screws. When it goes bad, it most commonly makes the fan speeds below high non operational.
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