B1441

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

DESCRIPTION

DTC Detection Condition:

The air mix damper servo sends pulse signals to inform the air conditioner amplifier of the damper position. The air conditioner amplifier activates the motor (normal, reverse) based on the signals to move the air mix damper (passenger seat) to any position, which adjusts the amount of air passing the heater core after passing the evaporator to control the blowing temperature.

HINT: Confirm that no mechanical problem is present because this diagnostic code can be output when either a damper link or damper is mechanically locked.

Wiring Diagram:

Step 1-2:

INSPECTION PROCEDURE