B1446

DTC B1446/46 Air Mix Damper Control Servomotor Circuit (Driver Side)

DESCRIPTION

DTC Detecting Condition:

The air mix control servo motor (air mix damper servo sub-assembly) is controlled by the A/C amplifier assembly.

The air mix control servo motor moves the air mix damper by rotating (normal, reverse) the motor with electrical power from the A/C amplifier assembly.

This adjusts the mix ratio of the air that passes through the evaporator and heater core and controls the air flow temperature. Air flow temperature changes when moving the air mix damper to the target point. The target point can be detected with the air mix damper position sensor.

Wiring Diagram:

Step 1:

Step 1(continued)-2:

Step 2(continued)-3:

Step 4:

Step 5:

INSPECTION PROCEDURE