Passenger Seat Belt Pretensioner Circuit Short
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 b0055 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Short circuit detected in the passenger seat belt pretensioner deployment circuit.
Symptoms
- Airbag/seatbelt warning light on
- SRS fault stored
- Unintended deployment risk
Common Causes
- Wiring insulation damage
- Pinched wire
- Moisture in connector
- Squib failure
Diagnostic Steps
- Disconnect battery
- Inspect wiring
- Check connector condition
- Measure isolation resistance
Repair Notes
Repair short or replace pretensioner assembly immediately.
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
B0055 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 B0055 mean on a 2011-2011 Mitsubishi Lancer?
B0055 stands for "Passenger Seat Belt Pretensioner Circuit Short". Short circuit detected in the passenger seat belt pretensioner deployment circuit.
What are the symptoms of B0055 on a Mitsubishi Lancer?
Common symptoms of B0055 include: Airbag/seatbelt warning light on, SRS fault stored, Unintended deployment risk.
What causes B0055 on a 2011-2011 Mitsubishi Lancer?
Common causes of B0055 include: Wiring insulation damage, Pinched wire, Moisture in connector, Squib failure.
Last updated: March 2026