Question about 2002 Nissan Altima

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HVAC Blower functions only at highest (4) switch setting

2000 ALtima GXE 5 spd - AC and heater both work.. but blower works only at max switch setting ..suspect a fuse problem but altima handbook does not show fuse listing ...

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  • Anonymous Mar 19, 2014

    MY HEATER WILL GO ON AUTO. EVEN WHEN I SHUT IT OFF. MY PANEL NOR MY MANNUAL SHOW ANY INDICATION ON HOW TO STOP THAT FROM HAPPENING.

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  • 275 Answers

If the blower works on high then its not a fuse it could be the switch or the resistor that cuts back power for the lower settings

Posted on Dec 01, 2008

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The blower resistor has gone bad and needs to be replaced, it's common for it to burn out due to time. You can pick one up at Auto Zone and they will have the step by step instructions to replacing the resistor. 
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You have a problem with your reostat. This is located under your dash behind the glove box and beside the blower motor. Unplug the plug and take out two screws hold it in place. Take it to your local recycle yard and get a good used one make sure to ask if it was tested and if it has warranty. Please let me know how you make out.
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i have been having that same exact problem with my 2002 grand prix for over a year now, and when my ac is on the lower setting the it doesnt work plus the headlights and lights on my dash go out. On Max everything works. i changed the blower resistor(about $35), still doesnt work. i changed all relays and fuses related to the ac, still doesnt work. i changed out the actual ac control switch in the dash, still doesnt work. i have changed everything but the blower motor and have asked every mechanic and auto parts retailer i come across and no one knows the answer. The best answer i got is that it is probably a wiring problem like a short somewhere.

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