The mode control actuator is mounted at the heater control unit. The mode control actuator consists of a motor and a feedback potentiometer. Pressing mode select switch makes the mode control actuator shift in order of vent? B/L ? floor ? mix.
Air conditioner Control Module sets DTC B2409 if Driver Direction actuator has not been moved to the mode,where air condition control module controls, within 10 seconds.
Item
Detecting Condition
DTC Strategy
Voltage check
Poor contact in harness
Open or short in motor power circuit
Faulty Driver Direction actuator
Faulty air conditioner control module
Enable Conditions
IG KEY ON
Threshold value
No movement to controlled mode position for 10 seconds.
Failsafe
Fixed as current position
Mode Door Position
Voltage
VENT
0.45±0.3V
BI-LEVEL
1.63±0.3V
FLOOR
2.45±0.3V
MIX
3.5±0.3V
DEF
4.55±0.3V