A weak ground or power feed wire can cause a voltage drop leading to low speed operation only .
If you want to solve your problem, click on the link I attached
1997 Lexus ES300
Testimonial: "Why do I only get an answer from somebody trying to sell me something. Is fixya only a front for these organisations or is it genuine"
It's genuine.. I've tried it myself. I'd like to let people know about this so they can save themselves from expensive repairs. it's DIY Generation!!!
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SOURCE: 2000 cherokee sport blower motor control
It is a bad blower motor resistor and it is mounted on the bottom of the A/C heater housing on the passenger side of the vehicle under the glovebox area. Hope this helps. Please rate this a fixya if it helps. Thanks.
Mike
SOURCE: Lincoln 2000 town car Blower doesn't work at HI-MED-LOW speeds...
it is called blower motor resistor , should be close to blower motor , you will see a plug type connector with two screws , remove the screws and there should be a resistor inside the cover for the motor, swap with new and reassemble
SOURCE: How do I change AC blower motor on 1997 Lexus ES300?
THE BLOWER UNIT IS LOCATED IN PASSENGER COMPARTMENT ABOVE THE RIGHT FRONT FOOT WELL.YOU HAVE TO REMOVE THE GLOVE COMPARTMENT LINER.THE GLOVE COMPARTMENT DOOR AND THE AND THE RIGHT LOWER DASH PANEL.THEN YOU CAN REMOVE BLOWER MOTOR SCREWS AND BLOWER MOTOR.
Testimonial: "good instructions!"
SOURCE: A/C Heater blower fan does not cycle through all speeds
Yes it is the blower Motors Resistor board. It is up behind the blower motor, just under the glove box. You have to remove the black KICK panel with its two "Push Pins" that will break too. There are 3 screws holding that resistor board in, the back two are a bear to get to. Good luck.
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