The Air conditioner Control Module sets DTC B1234 if In-Car temperature sensor signal is at or 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 |
•
Ignition ON | |
Threshold value |
•
In-Car sensor signal is at or over 4.9V for 4 seconds | |
Failsafe |
•
Control with the value of 23℃(73.4℉) |
