If Ambient Temperature Sensor circuit short is detected, A/C control module sets DTC B1237.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Voltage Monitoring | 1. Poor Connector Connection 2. Signal Circuit Short 3. Defected Ambient Temperature Sensor 4. Defected A/C Control Module |
Enable Conditions |
•
Ignition Switch "ON" | |
Threshold value |
•
Ambient Temperature Sensor voltage is less than 0.1 V for more than 0.3 sec. | |
Fail Safe |
•
Displays "--" on cluster and 20℃(68℉) Alternative Ambient Temperature value control | |
Clear Condition |
•
Ignition Switch "OFF" or Voltage Returns to Normal State |
