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B0100 B0xxx · 车身（B） 中严重度
Airbag Disable Switch Circuit
Fault in the manual passenger airbag on/off switch circuit (where fitted). The system cannot confirm the requested suppression state.
严重程度说明： 中——已影响行驶或排放，请本周内安排检修
你会注意到的故障现象
- Passenger airbag indicator incorrect
- Airbag lamp on
- Switch position not recognised
常见原因
按可能性从高到低排列——从最上面开始查。
- 1 Failed disable switch
- 2 Open or shorted wiring
- 3 Key-switch worn
- 4 Corroded connector
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。
- ✓ Cycle the switch and watch the indicator change in live data.
- ✓ Check continuity across the switch in both positions.
- ✓ Inspect the connector behind the switch panel.
维修方案
- Replace the disable switch
- Repair the wiring
B0100 —— 常见问题
Is my airbag on or off right now? +
Check the passenger airbag indicator and read the ECU status — never assume from the switch position alone.
Can I bypass the switch? +
No. Bypassing a safety system creates liability and fails inspection.