Disconnect neg battery cable.Remove glove box and lower kick panel.Unplug ECM is necessary, unplug blower motor, remove cover and cooling tube.It should have about 4-5 7mm or 8mm screws holding it in

Check out the guide below, it will help
https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only
Jul 11, 2009 at 8:41 AM