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 motot 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.
The Airconditioner Control Module sets DTC B1208 if the Feed Back signal of Intake Actuator has been detected open or below 0.1V for 0.3 seconds.
Item
Detecting Condition
Possible Cause
DTC Strategy
Voltage check
Poor connection of connected part
Open circuit in signal/power harness
Short circuit in signal/power harness
Faulty Intake potentiometer
Enable Conditions
IG KEY ON
Threshold value
Feedback circuit has been detected open or below 0.1V for 0.3 seconds
Fail safe
Setting mode : REC Fix at REC position
Setting mode : Except REC Fix at FRE position
? Voltage value of Intake potentiometer as a function of position of Intake door
Door position
Voltage
FRE
0.4V
REC
4.6V