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 B1245 if Feedback signal of Driver Air mix actuator(Temperature actuator) has been detected open or below 0.1V for 0.3 seconds.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Voltage check |
•
Poor Conection in harness
•
Open in signal(Feedback signal), power and ground circuit
•
Faulty Driver Temperature Actuator
•
Faulty Air condition Contorl Module |
Enable Conditions |
•
IG KEY ON | |
Threshold value |
•
Feedback signal of Driver Air mix actuator(Temperature actuator) has been detected open or below 0.1V for 0.3 seconds | |
Failsafe |
•
Setting temperature : 63℉-76.1℉, fix at max. cooling position
•
Setting temperature : 77℉-89.6℉, fix at max. heating position |
Door position | Voltage |
Max. cool | 0.3±0.15V |
Max. warm | 4.7±0.15V |
