General Information

Component Location





General Description

Intake door located at heater unit controls the inlet of car. It contains intake motor that changes intake door position and potentiometer that monitors position of intake door. When driver operates the intake switch, ECU receives mode signal from intake switch and operates intake door motor to turn intake door to intended position. (with FRE mode signal, intake door is closed and with REC mode signal, intake door is opened)
In operation, potentiometer delivers intake door position transformed into voltage value to A/C ECU.

DTC Description

The ECM sets DTC B2408 if the intake motor doesn't move to intended position within 40 sec (The ECM attempts to move the intake door for a 2 seconds duration at a frequency of 3 times every 20 seconds before storing a DTC).

DTC Detecting Condition





Schematic Diagram





Signal Waveform

** Voltage value of Intake potentiometer as a function of position of Intake door.