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B0050 B0xxx · 车身（B） 中严重度
Passenger Airbag Disable Indicator Circuit
The lamp or circuit that shows passenger airbag status has failed. The airbag itself may still be functional, but the driver cannot confirm its 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 on/off lamp never lights
- Lamp permanently lit
- Airbag warning lamp on
常见原因
按可能性从高到低排列——从最上面开始查。
- 1 Failed indicator lamp or LED
- 2 Open wiring
- 3 Faulty body module driver
- 4 Cluster fault
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。
- ✓ Command the lamp on with a scan tool if supported.
- ✓ Check the cluster or indicator wiring.
- ✓ Confirm from the ECU whether the airbag itself is enabled — the important question.
维修方案
- Replace the indicator or repair the wiring
- Repair the cluster
B0050 —— 常见问题
Is the airbag disabled? +
Not necessarily. Read the airbag ECU status — the indicator circuit is separate from deployment logic.
Can I drive with it? +
Yes, but you cannot confirm restraint status. Repair it reasonably soon.