1992 Toyota Previa AC switch problem?

1992 TOYOTA PREVIA
123,000 MILES • 4 CYL • 2WD • AUTOMATIC
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JLE11629
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  • 1 POST
Hi
My blower motor was coming on intermittently - then just on med and high. One day smelled a burning electrical smell - ac blower no longer runs -

Now when I turn on blower and depress AC switch nothing happens - not even a green light by the AC button which used to always be thwere when the button was depressed.

When I depress the AC switch the engine can be heard goiong under load - the compressor runs and the rear AC blows cold (separate blower and blower switch for rear)

The front has nothing going on so I bought a switch out of the local upull a part as well as a blower resistor. I checked the blower by jumping it to the battery - front blower runs fine - swapped the blower switch and resistor but got no result - still no AC

Any clue? Are there other relays or fuses I could replace???

Thanks
Jun 17, 2009 at 4:57 PM
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DOCFIXIT
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  • 18,828 POSTS
Hi
Check 40 amp Circuit Breaker #37 in instrument panel fuse box.
Let me know
Thanks for donate
Jun 18, 2009 at 11:25 AM
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KHLOW2008
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Hi jle11629, From the symptoms description of electrical burning smell, I believe it could be due to a burnt control unit. I have the schematic here and I would suggest checking the 2 amplifiers.


https://www.2carpros.com/forum/automotive_pictures/192750_ACWiring92Previa01a_1.jpg


https://www.2carpros.com/forum/automotive_pictures/192750_ACWiring92Previa01b_1.jpg


https://www.2carpros.com/forum/automotive_pictures/192750_ACWiring92Previa01c_1.jpg

Jun 18, 2009 at 11:54 AM
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