B1431

DTC B1431/31 Air Mix Damper Position Sensor Circuit (Passenger Side)

DESCRIPTION

DTC Detecting Condition:

This sensor detects the position of the air mix control servo motor (air mix damper) and sends the appropriate signals to the A/C amplifier assembly. The position sensor is built in the air mix control servo motor arm moves.

It outputs voltage (5 V) that is input to terminal 1 (VZ) and terminal 3 (PT) via the variable resistor, and then to the A/C amplifier assembly.

The A/C amplifier assembly reads the arm position with the input voltage from the position sensor.

Wiring Diagram:

Step 1:

Step 1(continued)-2:

Step 3:

Step 4:

INSPECTION PROCEDURE