FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Scantool Diagnostics





Air Conditioner
B1281 Humidity Sensor Short (Low) - AUTO Defog - Scantool Diagnostics

Monitor GDS data

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




Fig.1) If the DTC related auto defogger sensor is set, Air conditior control Module regards and controls humidity as 60%.
4. Is the defogger sensor abnormal ?