Question about Chevrolet Corsica
Unhook the power lead to the blower motor and make a jumper wire and apply a direct 12v to its terminal and if it runs guess you need to replace the switch
Posted on Oct 07, 2009
Testimonial: "I just found the motor and was going to try that. If it works I'll put a toggle switch under the dash. At least some air will move. thanks"
I had this problem. I checked the fan, the switch, the relay. All were good. The problem turned out to be a switch on a heater door. Perhaps the door didn't open enough to trip the switch, but I never dug into it enough to find it. I just defeated it by splicing in a short wire.
But to answer your question, get some test wires with alligator clips. Poke pins or razor blades into the insulated wires to the fan and so connect the fan to the battery. If the fan spins, it is good.
You can probably exchange the relay for another of the same type in another circuit right next to it and see if that works.
To check the switch, you probably need to open up the instrument panel and take out the switch, checking it with a volt-ohm meter or other continuity tester.
And there is that other heater door switch in there someplace too. (At least there was on my car.) So get a wiring diagram and see if you can figure this thing out.
And good luck.
Posted on Oct 03, 2009
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Posted on Jan 02, 2017
SOURCE: blower motor does not work
I had the same problem, replace, replace, replace. Check, check and recheck. What I found was the blower motor resistor, located in the blower squirrel cage area, two prongs and a curly wire, was bad. Took the new one back, (it ohmed out okay, continuity ok, all ok!) replaced it with another, and Bingo, problem solved. Frustrating to say the least. After two relays and a blower switch, and test, test and retest. It was a faulty resistor. Made in Mexico. And no guarentee, even though new, it works. Trial and error. Even the dealer parts are Honcho en Mexico. Thanks NAFTA. You gonna make us all welfare babies.
Posted on Sep 28, 2009
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