B2AAB
Rain Sensor Sensitivity Calibration
2006-2008 Audi A3 3.2L VR6 🇩🇪
Low SeverityBody
Description
The rain sensor sensitivity calibration is outside expected parameters or has been lost.
Symptoms
- Auto wipers too sensitive or not sensitive enough
- Wipers not responding proportionally to rain
- Auto wiper delay incorrect
Common Causes
- Sensor calibration lost after battery disconnect
- Windshield replacement affected calibration
- Sensor contamination
- Software update needed
Diagnostic Steps
- Attempt rain sensor recalibration via scan tool
- Clean sensor area thoroughly
- Check for windshield tint or coating near sensor
- Verify sensor mounting
- Check for software updates
Repair Notes
Recalibrate rain sensor. Clean windshield in sensor area. Replace sensor if recalibration fails.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
B2AAB on Other Vehicles
Common Questions
What does code B2AAB mean on a 2006-2008 Audi A3?
B2AAB stands for "Rain Sensor Sensitivity Calibration". The rain sensor sensitivity calibration is outside expected parameters or has been lost.
What are the symptoms of B2AAB on a Audi A3?
Common symptoms of B2AAB include: Auto wipers too sensitive or not sensitive enough, Wipers not responding proportionally to rain, Auto wiper delay incorrect.
What causes B2AAB on a 2006-2008 Audi A3?
Common causes of B2AAB include: Sensor calibration lost after battery disconnect, Windshield replacement affected calibration, Sensor contamination, Software update needed.