Front Impact Sensor Circuit - Right
2011-2011 Mitsubishi Lancer 2.0L I4
The 2011 Mitsubishi Lancer is equipped with a 2.0L inline-4 engine. Below you'll find detailed b0031 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
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.
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
B0031 on Other Vehicles
Mitsubishi 3000GT
1996-1996 3.0L V6 Twin Turbo
Mitsubishi 3000GT
1997-1997 3.0L V6 Twin Turbo
Mitsubishi 3000GT
1998-1998 3.0L V6 Twin Turbo
Mitsubishi 3000GT
1999-1999 3.0L V6 Twin Turbo
Mitsubishi Colt JP
2002-2002 1.3L I4 4A90
Mitsubishi Colt JP
2002-2002 1.5L I4 4A91
Mitsubishi Colt JP
2003-2003 1.3L I4 4A90
Mitsubishi Colt JP
2003-2003 1.5L I4 4A91
Common Questions
What does code B0031 mean on a 2011-2011 Mitsubishi Lancer?
B0031 stands for "Front Impact Sensor Circuit - Right". Malfunction in the right front impact sensor circuit. This sensor measures crash severity on the passenger side.
What are the symptoms of B0031 on a Mitsubishi Lancer?
Common symptoms of B0031 include: Airbag warning light on, SRS fault stored, Frontal protection compromised.
What causes B0031 on a 2011-2011 Mitsubishi Lancer?
Common causes of B0031 include: Faulty impact sensor, Wiring damage, Corrosion from road salt, Loose sensor mounting.
Last updated: March 2026