DTC B1441/41: Air Mix Damper Control Servo Motor Circuit (Passenger Side): Description
WARNING: This page is about a different car, the 2011 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
The air mix damper servo sends pulse signals to inform the air conditioning amplifier of the damper position. The air conditioning 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. The A/C amplifier communicates with the servo through a communication/driver IC and wiring assembly called the air conditioning harness.
HINT:
Confirm that no mechanical problem is present because this DTC can be output when either a damper link or the damper is mechanically locked.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B1441/41 | Air mix damper position sensor value does not change even if air conditioning amplifier operates air mix control servo motor |
|