If the relay is faulty, it just needs replacing to work. The switch would never need to be disconnected just to use the car.
it is probley not the blower switch. if your fan runs on 3,4 and 5 it is your blower motor resister.
Yes it will unplug but it will not start if you do that.Yes it will unplug but it will not start if you do that.
Bad fan switch Bad fuse Bad resistor pack on blower motor Bad blower motor
unplug the battery for 2min
blower motor bad or no power to it chech fuses blower switch blower motor
Blown fuse, bad blower motor switch, blower motor itself, or a defective blower motor resistor pack.
It's located on the steering column 2 screws unplug the harnest
It should be located under the dash above the passenger's foot area next to the blower motor. Unplug the harness and remove the two screws holding it in place.
it is on the firewall and difficult but not impossible to get to and replace.
Normally not from the manufacturer, but it could have had one installed after that.
Blinker switch would suggest ignition switch- turn key to on but dont start car and jiggle key with blower turned to 5. Working only on 5 suggest resistors are bad. The resistors are inside the blower case with the actual blower or very close to the blower case outside and you can tell if they are bad(burned, etc). . If 5 is high then 1-4 goes thru resistors but 5 is direct with only a relay. There should be a relay (think it is under the hood in the electrical box) marked high blower or something similar. Pull it out and check condition of prongs and plug it back in and see if it works on 5. There is also the possibility of the speed switch 1-5 being bad or just corroded. Pull the switch and unplug the plug and check it for corrosion. Of course there is another way to see if blower is getting power by checking voltage with ignition switch on and fan switch on 5 but that means you have to remove the trim under the glove box and measuring with a meter. Hope these ideas help.
If a 2000 Grand Am sometimes has the heater blower working and sometimes it won't, the problem could be with the heater relay switch. The heater relay switch lets the heater blower know when to come on and when to go off. In most vehicles this switch is behind the glove compartment. This part sometimes gets corroded from condensation in this area.