B0042critical severityBody
Side Crash Sensor Communication Error - Right
on 2017 Audi A4 2.0L I4 TFSI · AWD
What this code means
Communication loss between the right side crash sensor and the airbag control module.
Symptoms
- Airbag warning light on
- SRS code stored
- Right side airbag protection degraded
Common causes
- Damaged wiring in door or B-pillar
- Faulty sensor
- ACM bus fault
Diagnostic steps
- Scan SRS codes
- Check passenger B-pillar connector
- Inspect door wiring
- Test sensor bus
Repair notes
Repair wiring or replace right side crash sensor.
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
B0009
Rear Center Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment