Blind Spot Monitor Sensor Circuit
2014-2021 Mitsubishi Outlander 2.4L I4 🇨🇦
Description
Malfunction in the blind spot monitoring (BSM) radar sensor, typically mounted in the rear bumper.
Symptoms
- Blind spot indicators not illuminating
- BSM warning light on dashboard
- System unavailable message
- False blind spot alerts
Common Causes
- Faulty BSM radar sensor
- Sensor obstructed by bumper damage or dirt
- Sensor misaligned after rear collision
- Wiring damage
- Aftermarket trailer hitch blocking sensor
Diagnostic Steps
- Clean rear bumper in sensor area
- Inspect for bumper damage near sensors
- Check sensor wiring
- Scan BSM module for codes
- Verify no aftermarket accessories blocking sensor
Repair Notes
Replace BSM sensor or repair wiring. Recalibrate after replacement. Check for bumper damage blocking sensor field of view.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0005Driver Knee Airbag Deployment Circuit
B2402 on Other Vehicles
Mitsubishi Colt JP
2002-2012 1.3L I4 4A90
Mitsubishi Colt JP
2002-2012 1.5L I4 4A91
Mitsubishi Delica D:5
2019-2025 2.2L I4 Turbo Diesel 4N14
Mitsubishi Eclipse
2000-2012 2.4L I4
Mitsubishi Eclipse
2006-2012 2.4L I4
Mitsubishi Eclipse
2006-2012 3.8L V6
Mitsubishi Eclipse Cross
2018-2024 1.5L I4 Turbo
Mitsubishi Eclipse Cross
2018-2024 1.5L Turbo I4
Common Questions
What does code B2402 mean on a 2014-2021 Mitsubishi Outlander?
B2402 stands for "Blind Spot Monitor Sensor Circuit". Malfunction in the blind spot monitoring (BSM) radar sensor, typically mounted in the rear bumper.
What are the symptoms of B2402 on a Mitsubishi Outlander?
Common symptoms of B2402 include: Blind spot indicators not illuminating, BSM warning light on dashboard, System unavailable message, False blind spot alerts.
What causes B2402 on a 2014-2021 Mitsubishi Outlander?
Common causes of B2402 include: Faulty BSM radar sensor, Sensor obstructed by bumper damage or dirt, Sensor misaligned after rear collision, Wiring damage, Aftermarket trailer hitch blocking sensor.