'02 Chevrolet Cavalier heater control and rear defogger....?

I have an 2002 Cavalier and the fan control only works on the two highest settings. Also, the rear window defogger quit working. Both quit working about the same time. I already replaced the control box in the dash thinking that was it, but still have the same issue. Any... Read More

  • the blower resistor attached to the heater blower case under the glove box is the problem for the fan speeds,they go bad all the time.its pretty easy to replace it if you have a flexible entension.Its trickier if you dont. the rear defogger problem is probably a burned connector which is located at the A-pillar, which... Read More
  • Check all of the fuses first for the defogger problem. The fan control problem is classic bad relay or switch.

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