Front Impact Severity Sensor Circuit
2012-2017 Mitsubishi i-MiEV Electric
Description
Malfunction in the frontal impact severity sensor used to determine airbag deployment force level.
Symptoms
- Airbag warning light on
- SRS fault stored
- Dual-stage airbag staging may be incorrect
Common Causes
- Faulty severity sensor
- Wiring damage
- Control module fault
- Sensor mounting compromised
Diagnostic Steps
- Scan SRS codes
- Inspect severity sensor
- Check wiring to ACM
- Measure sensor circuit
- Verify sensor mounting
Repair Notes
Replace impact severity sensor. Ensure correct deployment staging by verifying ACM calibration.
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
- B0009Rear Center Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
B0039 on Other Vehicles
Mitsubishi 3000GT
1991-1999 3.0L V6
Mitsubishi 3000GT VR-4
1991-1999 3.0L Twin Turbo V6
Mitsubishi 3000GT VR-4
1991-1999 3.0L V6 Twin Turbo
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 Diamante
1992-1996 3.0L V6
Mitsubishi Diamante
1997-2004 3.5L V6
Common Questions
What does code B0039 mean on a 2012-2017 Mitsubishi i-MiEV?
B0039 stands for "Front Impact Severity Sensor Circuit". Malfunction in the frontal impact severity sensor used to determine airbag deployment force level.
What are the symptoms of B0039 on a Mitsubishi i-MiEV?
Common symptoms of B0039 include: Airbag warning light on, SRS fault stored, Dual-stage airbag staging may be incorrect.
What causes B0039 on a 2012-2017 Mitsubishi i-MiEV?
Common causes of B0039 include: Faulty severity sensor, Wiring damage, Control module fault, Sensor mounting compromised.