B0052
Driver Seat Belt Pretensioner Circuit Open
1992-1996 BMW 318is E36 1.8L I4 🇩🇪
Critical SeverityBody
Description
An open circuit detected in the driver seat belt pretensioner deployment loop.
Symptoms
- Airbag/seatbelt warning light on
- SRS fault stored
- Pretensioner will not activate in crash
- No driving symptoms
Common Causes
- Disconnected pretensioner connector
- Broken wire in B-pillar
- Faulty pretensioner squib
- Seat belt assembly replaced without proper reconnection
Diagnostic Steps
- Scan SRS codes
- Inspect pretensioner connector at B-pillar base
- Check wiring continuity
- Measure deployment loop resistance
Repair Notes
Reconnect pretensioner or repair wiring. Replace seat belt assembly if pretensioner is faulty.
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
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
- B0012Driver Side Airbag Deployment Circuit Short to Ground
- B0013Driver Side Airbag Deployment Circuit Short to Battery
B0052 on Other Vehicles
Common Questions
What does code B0052 mean on a 1992-1996 BMW 318is E36?
B0052 stands for "Driver Seat Belt Pretensioner Circuit Open". An open circuit detected in the driver seat belt pretensioner deployment loop.
What are the symptoms of B0052 on a BMW 318is E36?
Common symptoms of B0052 include: Airbag/seatbelt warning light on, SRS fault stored, Pretensioner will not activate in crash, No driving symptoms.
What causes B0052 on a 1992-1996 BMW 318is E36?
Common causes of B0052 include: Disconnected pretensioner connector, Broken wire in B-pillar, Faulty pretensioner squib, Seat belt assembly replaced without proper reconnection.