Question about 1999 Lexus RX 300

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The heater fan shut off and all fuses check out could it be a relay thay dont have them marked in the maual

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If your fuses check good it's probably one of two things. First try taking down the black cover underneath the glovebox--it just clips up into the dash if you use a flathead screwdriver between the cover and glovebox to gently pry down on it. Then using the screwdriver handle, and with the key on/fan switch on, tap on the blower motor (with the large black connector that has one black wire & one red wire) if that doesn't get it to start spinning then you probably have a faulty blower motor relay controller (that's buried a little farther down, in, and to the left of the blower motor). Either of the two are known to go out on this model/year.

Posted on Jan 06, 2009

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