The Auto defogger sensor is installed on front window glass. The Auto defogger sensor judges and sends signal for the occurance of moisture in advance of blowing out the wind for defogging. The Air conditioner control module receives signal from auto defogger and performs restraining moisture and eliminating in advance with automatically controlling Intake actuator, A/C, Defogger actuator, Blower motor rpm, Mode actuator.
The Air conditioner Control Module sets DTC B1282 if The signal from auto defogger sensor signal has been detected open for 2 seconds.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Voltage check | 1. Short in signal circuit. 2. Faulty Auto Defog sensor. 3. Faulty Air conditioner Control Module. |
Enable Conditions |
•
Ignition ON | |
Threshold value |
•
Open for 2 seconds. | |
Failsafe |
•
Air Conditioner Control Module Controls humidity as 0%. |
(%RH) | (+Duty) | (%RH) | (+Duty) |
30±6%RH | 30±6% | 60±6%RH | 60±6% |
40±6%RH | 40±6% | 70±6%RH | 70±6% |
50±6%RH | 50±6% | 80±6%RH | 80±6% |
