Replace fan switch.
Blower motor resistor is the most common problem. it is held in by 2 screws under the glovebox area. Easy to replace.
Check all the fuses and relays first. If they all appear to be in good working order, then you'll have to get to the blower motor. Could be a short or the motor could be bad.
remove the battery and the cpu, the blower motor will be right under it.
Where is the resistor on 2001 jeep wrangler
Blower motor fuse is blown. Blower motor resistor burned out. Blower motor switch bad. Blower motor bad.
the switch, or the blower motor resistor, or blower motor usually it the last two at one time
in your but
In a 1997 Jeep Wrangler, the relay switch for the heater blower and motor is located behind the dash. It will be directly behind the HVAC knobs behind the dashboard.
Blower motor NG. Blower motor resister NG. Blower motor fuse NG. Blower motor switch NG.
it's the blower motor
Blown fuse? Bad blower motor? Bad blower motor resistor? Bad blower motor switch?
If it works on some speeds and not others, the most likely problem is a defective Blower Motor Resistor Pack. It is located near the blower motor.