DTC B1443/43: Air Outlet Damper Control Servo Motor Circuit: Description

The mode 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 mode damper to the appropriate position, which controls the air outlet modes.

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.