Driver Seat Belt Pretensioner Deployment 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 b0050 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Malfunction in driver seat belt pretensioner.
Symptoms
- Airbag/seatbelt light on
Common Causes
- Faulty pretensioner
- Wiring issue
- Previously deployed
Diagnostic Steps
- Scan codes
- Inspect pretensioner
- Check wiring
Repair Notes
Replace pretensioner if deployed. Professional service.
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
B0050 on Other Vehicles
Lincoln Aviator
2003-2003 4.6L V8 DOHC
Lincoln Aviator
2004-2004 4.6L V8 DOHC
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
Common Questions
What does code B0050 mean on a 2018-2018 Lincoln MKX?
B0050 stands for "Driver Seat Belt Pretensioner Deployment Circuit". Malfunction in driver seat belt pretensioner.
What are the symptoms of B0050 on a Lincoln MKX?
Common symptoms of B0050 include: Airbag/seatbelt light on.
What causes B0050 on a 2018-2018 Lincoln MKX?
Common causes of B0050 include: Faulty pretensioner, Wiring issue, Previously deployed.
Last updated: March 2026