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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. 1 Open circuit in the pretensioner
  2. 2 Connector under the seat disturbed
  3. 3 Previously deployed unit
  4. 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。

  1. ✓ Follow the airbag safety procedure before any testing.
  2. ✓ Read loop resistance from the restraint ECU.
  3. ✓ Inspect the seat connector and wiring.
  4. ✓ 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.

买配件之前先确认诊断结论

把故障码、冻结帧数据和车型发给我们——工程师会告诉你先测哪一项。