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 B1234 if Incar temperature sensor has been detected over 4.9V for 4 seconds.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Voltage check | 1. Poor connection in wireharness 2. Open in signal circuit 3. Short to battery in signal circuit 4. Faulty Incar temperature sensor 5. Faulty Air conditioner Control Module |
Enable Conditions |
•
IG KEY ON | |
Threshold value |
•
Incar temperature sensor has been detected over 4.9V 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 |
