cost of switch
"How do you replace the fan control switch on a 2002 Grand Prix?"
Which fan motor?
How to change bulb behind switch of fan Toyota Avenses
Change blower fan control switch in the dash
Why are you replacing the switch? If the fan works only on high speed, replace the fan resistor. There was a TSB for this.
The radiator fan sensor switch or the radiator fan motor are at fault (maybe even both). Wire the fan motor direct to see if it will run, if it does, replace the sensor switch. If the fan motor doesn't run, replace the fan motor before you buy a new sensor. If after replacing the fan motor, the fan still doesn't run, then replace the sensor.
replace the switch
take the old switch out, put a new one in
Replace fan switch.
under the throttle body.
PLEASE NOTE: If your A/C fan only runs on higher speeds, the most likely cause is the Fan Motor resistor, not the switch. This resistor bank is normally located behind the glove compartment and has a four wire harness plugged into it. Try replacing the resistors first as this is a common problem.