Blower motor resistor heater

SOURCE: 2000 pontiac bonneville wiring harness

u can get one to use out of a srvice book at the libruary

SOURCE: where is blower motor resistor

There is a resistor pack for the fan speed in the ductwork near the fan.. It is very easy to replace once it is located. Ussually there are either one or two 5.5mm screws holding it in place. Once you get it out you will notice the resistors that are burnt.

SOURCE: blower motor only works on high

located under dash next to blower motor itself should be a couple of wires plugged into it

SOURCE: 2005 Pontiac Bonneville hvac blower does not come on

Start by checking the blower resistor. It should be under the dash on the passenger side near the blower itself. You will need to remove the glove box to access it. It is a small plate that has only a few screws and a group of wires that go to a plug in the center. Unplug it and remove the screws. When you pull it out it should look like a series of small spring shaped coils. Most likely one or two of them will be burned up. Replace it in reverse order and your blower should start working again. If this is not the problem then test the fan motor itself. Hope this helps. Good luck.

SOURCE: how to replace AC Heater blower motor on a 2002

If youre changing it because it wont blow, try applying power to it first. It is on the passenger side under the dash if you take off the panel above the passenger feet. has a 2 wire plug in apply 12v to the motor, if it works replace the more common blower motor resistor which is located 3-5inches towards the front of the car from the fan itself. Also be sure to check your fuses.