DTC B1443/43: Air Outlet Damper Control Servo Motor Circuit [10/2014 - ]: Description

The No. 1 air conditioning radiator damper servo sub-assembly (air outlet) sends pulse signals to inform the air conditioning amplifier assembly of the damper position. The air conditioning amplifier assembly activates the motor (normal, reverse) based on the signals to move the No. 1 air conditioning radiator damper servo sub-assembly (air outlet) to any position, which controls the air outlet switching.

The air conditioning amplifier assembly communicates with the servo through a communication/driver IC and wiring assembly called the air conditioning harness assembly.