If In-Car Temperature Sensor circuit open is detected, A/C control module sets DTC B1233.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Voltage Monitoring | 1. Defected A/C Control Module |
Enable Conditions |
•
Ignition Switch "ON" | |
Threshold value |
•
In-Car Temperature Sensor voltage is higher than 4.9 V for more than 0.3 sec. | |
Fail Safe |
•
25℃(77℉) Alternative In-Car Temperature Sensor value control | |
Clear Condition |
•
Ignition Switch "OFF" or Voltage Returns to Normal State |
