If the engine compartment fuse #105 is OK, next 2 items are :
1. Blower motor relay. This is in the same fuse block as the flasher, under the dash, about in line with the steering wheel column. It should have a cover on it, so it will be black, and hard to see.
When you pull it, you can bypass the control panel operation of it, by jumpering the normally open contacts ( show below with the red line )
If this does not work, the next thing to check is the blower motor resistor, mounted in the blower duct on the passenger side :
The right hand side of the picture, is the passenger side kick panel where the fuel inertia switch is at. The wiring pigtail shown goes to the blower motor resistor, which is towards the left / driver's side.
The resistor usually goes out, with only the high speed part working, but you could have a case where all are out ( seen it happen before ).
The black wire in this harness should go directly to ground ( check with a meter to the ground lugs behind the passenger side kick panel ).
A loose / missing ground to the blower motor resistor will also give the same symptoms of a blown resistor pack.
Were might I find the ground connection?
Under dash or under hood?? Appreciate any help.
Thanks, Bill
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Unable to replace blower motor relay. Is car ok without a replacement?
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