If I start the car with the fan on 5, no issues. If I have the fan on any other speed when starting the car or while running the car, the fan stops and the ABS and Parking Brake lights come on. I've replaced the blower motor resistor pack and also the wire harness. I also looked at the fan speed switch and it appears to be fine. I checked the blower fuse under the hood. I swapped it out with other like fuses but no change. I've read some places about a blower motor relay but can't seem to find out where that is located. Need help with this!!
Fan only works on 5. Any other speed causes ABS and P Brake lights to come on. on 2004 Chevrolet Trailblazer
by goodsound in New Stanton, PA on July 28, 2013