The Air conditioner Control Module sets DTC B1281 when the auto defogger sensor signal has been detected short to ground circuit.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Monitoring the Voltage | 1. Poor connection in wiring harness 2. Short to ground in signal Circuit 3. Short to ground in power Circuit 4. Open in signal circuit 5. Open in power circuit 6. Open in ground circuit 7. Auto defogger sensor(Humidity sensor) 8. Faulty A/C control Module |
Enable Conditions |
•
IG KEY ON | |
Threshold value |
•
Auto defogger sensor signal circuit is short to ground for 2seconds | |
Failsafe |
•
Air Conditioner Control Module Controls humidity as 0% |
