Question about 2003 Jeep Wrangler
Sounds like the resistor block that controls your blower motor has started to go.this is a replace only to fix this problem.Go along to your local parts store and see if you can get a new one,if not its to the dealer.With the new part in hand go under the dash on the passenger side,and look for a loom of wires that will be close to the blower motor.The resistor block will be in the air box somewhere( for cooling purposes) and is usually held on with two screws. disconnect the wires first then remove the block.reverse for install.good luck
Posted on May 14, 2014
Testimonial: "At first the blower was working on all settings but high, eventually it went allo together. I replaced the resistor but I am back to where the high is the only one that does not work...does the high work direct from the battery..or...?"
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Posted on Jan 02, 2017
I'd replace blower resistor, usually found under hood on firewall on passenger side, or on duct work, inside under dash on passenger side,close to blower motor.
Posted on Jun 01, 2009
You can test both of them once you have it apart. I have given you instruction below. Please follow them as injury could result.
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
CAUTION: Stay clear of the blower motor and resistor block (Hot). Do not operate the blower motor with the resistor block removed.
Disconnect and isolate the battery negative cable.
Remove the glove box from the instrument panel (Refer to 23 - BODY/INSTRUMENT PANEL/GLOVE BOX - REMOVAL).
Pull out the lock on the blower motor resistor wire harness connector to unlock the connector latch (Blower Motor Resistor Block- Typical).
Depress the latch on the blower motor resistor wire harness connector and disconnect the connector from the resistor.
Remove the two screws that secure the blower motor resistor block to the HVAC housing.
Remove the resistor block from the HVAC housing.
Posted on Jun 20, 2009
you need a temp limited switch and for the most part its close to the blower motor has a small screw on each side with a plug in the middle give these websites a try www.autozone.com and www.alldatadiy.com if all fails stop by your Jeep dealership in the parts department and they be able to show you what i am talking about and print you off pictures and diagrams showing you where it is located wish you the best of luck Michigan Man.
Posted on Jan 04, 2010
If you bypass the resistor pack and connect the motor directly to the fused 12v supply then the fan should run at maximum speed. If so, it's the resistor pack that's blown: a very common fault on a huge number of makes and models.
Posted on Feb 13, 2010
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