Scantool Diagnostics

B1281 Humidity Sensor Short (Low) - AUTO Defog

Scantool Diagnostics

Monitor Scantool data

1. Connect scantool with diagnostic connector.
2. Warm up the engine to normal temperature after engine starts.
3. Select and monitor "Auto defogger humidity sensor" parameter on scantool.




Fig.1) If the DTC related auto defogger sensor is set, Air conditioner control Module regards and controls humidity as 0%.
4. Is the defogger sensor normal?