The Air Mix actuator contains a motor that changes temp door position and a potentiometer that monitors position of temp door. The Air mix actuator(Temperature actuator) regulates the temperature by operating temp door motor. The potentiometer delivers temp door position to the A/C ECU .
The Air conditioner Control Module sets DTC B2406 if Driver air mix actuator has not been moved to the mode,where air condition control module controls, within 40 seconds.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Voltage check |
•
Poor contact in harness.
•
Open or short in motor power circuit.
•
Faulty Driver air mix actuator.
•
Faulty air conditioner control module. |
Enable Conditions |
•
IG KEY ON | |
Threshold value |
•
No movement to controlled mode position for 40 seconds | |
Failsafe |
•
Fixed as current position |
Door position | Voltage |
Max. cool | 0.3±0.15V |
Max. warm | 4.7±0.15V |
