The Air conditioner Control Module sets DTC B1237 when ambient temperature sensor signal is at or below 0.1V for 0.3 seconds.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Monitoring the Voltage | 1. Short to ground in signal circuit 2. Faulty ambient temperature sensor 3. Faulty A/C control Module |
Enable Conditions |
•
IG KEY ON | |
Threshold value |
•
Ambient temperature sensor signal is at or below 0.1V for 0.3 seconds | |
Failsafe |
•
Displayed '--' and A/C control Module regards and controls it as 20℃(68℉) |
