Most likely cause is a failed blower resistor.
could be the resistor on blower motor is bad
can be the heater blower motor resistor located in either the ductwork or under hood near blower motor on firewall
There could be two separate problems. Check the blower motor resister, and the ABS sensors for problems that could cause this.
A malfunctioning blower motor resistor will cause the blower motor not to work. When the resistor is bad the blower motors will not turn on.
Blower motor NG. Blower motor resister NG. Blower motor fuse NG. Blower motor switch NG.
Could be, heater blower motor has failed. blower motor fuse is burned out. blower motor speed resistor is burned out. blower motor switch is bad. or, if the blower motor works but you have no heat it could be, cooling system is low on coolant. thermostat is stuck open. heater core is plugged. temp blend door actuator is faulty.
Typically a relay or resistor. But could be a blower switch or blower motor problem.
The following can cause this problem.................. 1. Bad blower motor. 2. Bad blower motor wheel. 3. Trash in the blower housing...
fuse, wiring, blower motor, blower motor switch, blower motor resistor
I had the same problem and ended up replacing the blower resistor and the blower motor. Although it could be one or the other .. mine was both.
Could be, a blown fuse, a bad blower motor, a burned out blower motor speed resistor, a bad blower motor switch,
It could be the motor, switch, relay, corroded or dirty connector, damaged wire or blown fuse.