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Car Forum / Toyota / Toyota Trucks / November 200789 pickup interior fan switch
I have a 1989 Toyota pickup. The 4 speed interior fan switch does not work in the two lowest speeds. High and the next speed down work fine. I've replaced the switch (very expensive) and the new one does the same thing. So what the heck could be the culprit?  SignatureIan Hey! Sounds like the resistor pack at the blower. ZaXXoN >I have a 1989 Toyota pickup. The 4 speed interior fan switch does not work >in the two lowest speeds. High and the next speed down work fine. [quoted text clipped - 3 lines] > >So what the heck could be the culprit? >I have a 1989 Toyota pickup. The 4 speed interior fan switch does not work >in the two lowest speeds. High and the next speed down work fine. [quoted text clipped - 3 lines] > >So what the heck could be the culprit? Should have asked here before changing the switch, we would have saved you a lot of trouble - it's the resistor pack, the third coil has gone open and it drops third and fourth (slowest) speed. Follow the wiring harness back from the fan motor, it'll stop within six inches at a plug. That's plugged into the resistor pack, which is held into a hole in the side of the heater duct with one screw and a tab at the other end. The coils stick out into the fan airflow for cooling. Dealer parts counter, $20-ish. Don't bother trying to fix it, you'll never get solder to stick, and if you do it'll melt when in use. (Think electric wall heater.) After you change the resistor pack, check the amp draw of the blower motor is in spec, and that it spins freely, you might also be due for a new or rebuilt blower motor. A dragging motor will overload the resistor and burn it up faster - especially if the motor stalls and the current draw continues but the cooling airflow goes away. --<< Bruce >>-- >>I have a 1989 Toyota pickup. The 4 speed interior fan switch does not >>work [quoted text clipped - 28 lines] > > --<< Bruce >>-- $20!!! Hell, Toyota sells em for $75 here in Australia! $5 at the local wreckers 2nd hand though. > $20!!! Hell, Toyota sells em for $75 here in Australia! > > $5 at the local wreckers 2nd hand though. I just checked the price here in New Orleans. They want $36.00 Thanks to all who responded. The resistor pack did the trick. Cost was $41 (6.2% sales tax) at Eddy's Toyota in Wichita, KS. SignatureIan >I have a 1989 Toyota pickup. The 4 speed interior fan switch does not work >in the two lowest speeds. High and the next speed down work fine. [quoted text clipped - 3 lines] > > So what the heck could be the culprit? |
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