Airbag / SRS Warning: OBD2 Diagnosis Path

Airbag lamp or SRS system alert related to deployment circuits. Start with the related code pages below, then use scanner and guide pages to narrow down root cause and reduce unnecessary parts swaps.

Tool for this symptom

Scanner that reads airbag and SRS codes — see what the tool has to be able to do before you buy one.

Scanner that reads airbag and SRS codes

Most Related OBD2 Codes

B0020 · Front Passenger Side Airbag Deployment Control U0100 · Lost Communication With ECM/PCM

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Best OBD2 Scanner With ABS And SRS

Tip: if your exact code is still unknown, start at OBDHacks scanner input and then return to this symptom cluster for deeper troubleshooting.