B0031critical severityBody
Front Impact Sensor Circuit - Right
on 2004-2011 Volvo S40 2.4L I5 · FWD
What this code means
Malfunction in the right front impact sensor circuit. This sensor measures crash severity on the passenger side.
Symptoms
- Airbag warning light on
- SRS fault stored
- Frontal protection compromised
Common causes
- Faulty impact sensor
- Wiring damage
- Corrosion from road salt
- Loose sensor mounting
Diagnostic steps
- Scan SRS codes
- Inspect right front sensor
- Check wiring
- Measure circuit resistance
Repair notes
Replace front impact sensor or repair wiring.
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