General Information

Component Location





General Description

Temperature control actuator located at heater unit. It contains temp motor that changes temp door position and potentiometer that monitors position of temp door. Temperature control actuator regulates the temperature by the procedure as follows. Signal from control unit adjusts position of temp door by operating temp motor and then temperature will be regulated by the hot/cold air ratio decided by position of temp door. In operation, potentiometer delivers temp door position transformed into voltage value to A/C ECU.

DTC Description

The ECM sets DTC B2406 if the driver air mix actuator doesn't move to intended position within 40 sec (The ECM attempts to move the temp door for a 2 second duration at a frequency of 3 times every 20 seconds before storing a DTC.)

DTC Detecting Condition





Schematic Diagram





Signal Waveform

** Voltage value of Air Mix potentiometer as a function of temp door position.