Auto defogger sensor is installed on front window glass. Auto defogger sensor judges and sends signal of the occurance of moisture in advance of blowing out the wind for defogging. 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.
Air conditioner Control Module sets DTC B1282 if The signal from auto defogger sensor has been detected open for 2 seconds.
Item
Detecting Condition
DTC Strategy
Voltage check
Poor connection in harness
Short in signal circuit
Faulty Auto Defog sensor
Faulty Air conditioner Control Module
Enable Conditions
IG KEY ON
Threshold value
Open for 2 seconds
Failsafe
Air Conditioner Control Module Controls humidity as 0%
(%RH)
(Hz)
0
37.19
60
34.8
20
36.4
80
34
40
35.6
100
33.2