see nhtsa action no ea1003 about this problem.
The wiring harness on a blower motor for a Ford F150 is connected to the blower itself and the resistor switch that is under and/or behind the glove compartment on the vehicle. This resistor switch is a set of 3 or 4 wires connected by a plastic clip.
The blower motor resistor is above the passenger side close-out panel, below the glove compartment and towards the firewall. There will be a wiring harness leading from it to the blower motor and another harness leading into it. The harness leading into it will have a 4-wire connector and the harness leading to the blower motor will have a 2-wire connector.
Remove the blower motor retaining nuts. Remove the wiring harness from the back of the blower motor. Remove the fan from the blower motor. Reverse the process to install the new blower motor.
Bad resistor at the blower motor? Bad blower motor switch?
Under the hood. In the blower motor harness connector.
Defective blower motor, blower motor resistor pack, or blower motor speed control switch.
If you are saying the blower motor will not work, then check the fuse. If the fuse is not blown, then it is possibly a defective Blower Motor Resistor Pack, blower motor, or blower motor speed control switch, in that order.If you are saying the blower motor will not work, then check the fuse. If the fuse is not blown, then it is possibly a defective Blower Motor Resistor Pack, blower motor, or blower motor speed control switch, in that order.
Remove the wiring harness from the back of the blower motor. Remove the blower motor retaining screws. Remove the fan from the blower motor. Reverse the process to install the new blower motor.
Blower motor fuse is blown. Blower motor resistor burned out. Blower motor switch bad. Blower motor bad.
Heater motor switch and or the connection at the switch is melted. Also check connections at the blower motor and blower motor resistor for melt down damage.
Remove the wiring harness from the back of your 2001 Chevrolet Corvette blower motor. Remove the blower motor retaining bolts. Remove the blower motor fan. Reverse the process to install the new blower motor.
Remove the wiring harness from the 1996 Chevy Cavalier blower motor. Remove the blower motor retaining bolts. Remove the blower motor fan. Reverse the process to install the new blower motor.