Rear Right Seat Belt Pretensioner Circuit
2018-2018 Lincoln MKX 3.7L V6
The 2018 Lincoln MKX is equipped with a 3.7L V6 engine. Below you'll find detailed b0057 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Malfunction in the rear right seat belt pretensioner deployment circuit.
Symptoms
- Airbag/seatbelt warning light on
- SRS code stored
- Rear right pretensioner inoperative
Common Causes
- Faulty pretensioner
- Wiring damage
- Connector corrosion
- Previous rear collision
Diagnostic Steps
- Scan SRS codes
- Check rear right pretensioner connector
- Inspect wiring
- Measure circuit resistance
Repair Notes
Replace pretensioner or repair wiring.
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
B0057 on Other Vehicles
Lincoln Aviator
2005-2005 4.6L V8 DOHC
Lincoln Aviator
2020-2020 3.0L Twin-Turbo V6
Lincoln Aviator
2020-2020 3.0L V6 Twin Turbo
Lincoln Aviator
2020-2020 3.0L V6 Twin Turbo Hybrid
Lincoln Aviator
2021-2021 3.0L Twin-Turbo V6
Lincoln Aviator
2021-2021 3.0L V6 Twin Turbo
Lincoln Aviator
2021-2021 3.0L V6 Twin Turbo Hybrid
Lincoln Aviator
2022-2022 3.0L Twin-Turbo V6
Common Questions
What does code B0057 mean on a 2018-2018 Lincoln MKX?
B0057 stands for "Rear Right Seat Belt Pretensioner Circuit". Malfunction in the rear right seat belt pretensioner deployment circuit.
What are the symptoms of B0057 on a Lincoln MKX?
Common symptoms of B0057 include: Airbag/seatbelt warning light on, SRS code stored, Rear right pretensioner inoperative.
What causes B0057 on a 2018-2018 Lincoln MKX?
Common causes of B0057 include: Faulty pretensioner, Wiring damage, Connector corrosion, Previous rear collision.
Last updated: March 2026