DTC B1441/41: Air Mix Damper Control Servo Motor Circuit (Passenger Side): Description

The air mix damper servo sub-assembly sends pulse signals to indicate the damper position to the air conditioning amplifier. The air conditioning amplifier activates the motor (normal or reverse) based on these signals to move the air mix damper (front passenger side) to the appropriate position. This adjusts the amount of air passing through the heater core after passing the evaporator and controls the temperature of the blown air. The air conditioning amplifier communicates with the servo through a communication/driver IC and wiring assembly called the air conditioning harness.

HINT: 

Confirm that there are no mechanical problems because this DTC can be set if either a damper link or the damper is mechanically locked.