Check the control module, the resistor, etc......
Bad blower resistor?
replace heater relay and or heater blower motor
The resistor motor may have went out if the heater blower quit working on a 2004 F-250 Truck. The cost to replace the motor is approximately $200.
Blower fan resistor under glove box...by passenger's feet...!
The a/c heater blower motor resister is located in the vehicle on the passengers side inside the housing next to the blower motor...............Remove the blower motor resistor wire harness connector.Remove the blower motor resistor screws.Remove the blower motor resistor.
the heater fan resistor is located under glove box beside the fan blower.
One reason a 2004 Monte Carlo heater motor blower may not work is low coolant. You can check the coolant level after the car has been turned off.
The blower resistor assembly is located under the hood, on the heater case to the right of the blower motor. Haynes Manual #36071
The blower motor resistor pack is bad.
Yes, the 2004 Mitsubishi Endeavor has a fuse related to the heater blower. It is typically located in the fuse box under the dashboard or in the engine compartment, depending on the specific model and features. If the heater blower is not functioning, checking the fuse is a good first step in troubleshooting the issue. Always refer to the owner’s manual for the exact location and specifications of the fuse.
circuit #12 30 amp
under dash on passenger side to remove the blower moter all you have to do is unscrew 3 screws and 1 small hose and the moter and housing comes out