It contains a thermistor which measures the temperature of the inside. The signal,decided by the resistance value which changes in accordance with perceived inside temperature, is delivered to heater control unit. According to this signal, the control unit regulates incar temperature to intended value.
Air conditioner Control Module sets DTC B1233 if Incar temperature sensor has been detected below 0.1V for 4 seconds.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Voltage check | 1. Short circuit in harness 2. Faulty incar temp.sensor 3. Faulty A/C Control Unit |
Enable Conditions |
•
IG KEY ON | |
Threshold value |
•
Incar temperature sensor has been detected 0.1V for 4 seconds. | |
Failsafe |
•
Control with the value of 23℃(73.4℉) |
Temperature(℃/℉) | Resistance(㏀) | Temperature(℃/℉) | Resistance(㏀) |
-20/-4 | 285.6 | 20/68 | 37.4 |
-10/-14 | 164.6 | 30/86 | 24.1 |
0/32 | 97.7 | 40/104 | 15.9 |
10/50 | 59.67 | 50/122 | 10.8 |
