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B0110 B0xxx · 车身(B) 高严重度
Seat Belt Pretensioner Circuit Fault
A fault in the pyrotechnic or electric seat belt pretensioner circuit. The belt will not tighten correctly in a crash.
严重程度说明: 高——立即停车诊断,继续行驶有扩大损坏的风险
你会注意到的故障现象
- Airbag or belt warning lamp
- Belt does not retract normally if electric
常见原因
按可能性从高到低排列——从最上面开始查。
- 1 Open circuit in the pretensioner
- 2 Connector under the seat disturbed
- 3 Previously deployed unit
- 4 Wiring damage
如何排查
先做花钱最少、侵入最小的检查——大多数这类码不是零件问题。
- ✓ Follow the airbag safety procedure before any testing.
- ✓ Read loop resistance from the restraint ECU.
- ✓ Inspect the seat connector and wiring.
- ✓ Check whether the vehicle has been in a previous collision.
维修方案
- Replace the pretensioner assembly
- Repair the wiring or connector
B0110 —— 常见问题
Are pretensioners reusable after deployment? +
No. They are single-use pyrotechnic devices.
Can I drive the car? +
You can move it, but the restraint system is compromised. Repair before normal use.