Why is the front blower motor not getting any power

SWEETLEAF

MEMBER
2005 TOYOTA SIENNA

Front blower motor works, just not getting any power to it, have power to speed switch but I lose it when I turn the switch on, all other wires are ground, all wires at resistor are ground, no power. I replaced fan speed switch, it didn't fix the problem. I installed a simple toggle switch, ran hot wire from fuse box, through 30 amp fuse, switch, than to motor. I grounded the motor using the same factory wire harness. Blower motor works, and I can even change the speed using the fan speed switch. I only found two relays under hood for blower motors, 1 for the front and 1 for the rear, both are good, all fuses are good as well, maybe there's a relay, that's hidden? Please, any help is greatly appreciated, thanks.

4 Replies

RASMATAZ

MECHANIC
75,992 POSTS

You might want to start checking the front motor controller. I don't have the location for it-

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Friday, December 2nd, 2011 AT 6:09 PM

SWEETLEAF

MEMBER
14 POSTS

Thanks for rasmataz, what exactly do you mean by the front motor controller? Are you talking about the blower motor resistor? If so, I was thinking that, but I'm not sure since I'm not getting any power to it and the blower isn't working in any speeds. All of the ones I dealt with, you would still have high speed, since the resistor is by-passed for high speed. I should have also noted that this is manual temp control, not automatic. And I also noticed the a/c button does not light up either. Thanks