B0090critical severityBody
SRS Control Module Calibration Error
on 2011 Audi A4 2.0L Turbo I4 · AWD
What this code means
The SRS control module calibration data is invalid, missing, or does not match the vehicle configuration.
Symptoms
- Airbag warning light on
- SRS system fully disabled
- All deployment circuits inactive
Common causes
- Module not programmed to vehicle
- Incorrect replacement module
- Software update failed
- Module from different vehicle installed
Diagnostic steps
- Verify ACM part number matches vehicle
- Check module calibration with scan tool
- Attempt recalibration/reprogramming
- Verify VIN programming in module
Repair notes
Reprogram ACM with correct vehicle calibration. Replace if reprogramming fails.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0006
Passenger Knee Airbag Deployment Circuit
B0007
Rear Left Side Airbag Deployment Circuit
B0008
Rear Right Side Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment
B0011
Driver Side Airbag Deployment Circuit Open