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B0223

SRS Indicator Lamp Circuit Malfunction

The SRS module has detected a fault in the airbag warning lamp circuit. The lamp may be inoperative, which prevents driver notification of stored faults.

  • Check engine light: Not always
  • Emissions related: No
  • Repair difficulty: medium

Symptoms

  • Warning light or symbol related to the affected system
  • Comfort or safety function impaired

Common causes

Ordered by how often each turns out to be the cause.

  • Burnt-out warning bulb (older clusters)Common
  • Instrument cluster faultPossible

Parts involved

  • Srs Warning Lamp
  • Instrument Cluster
  • Body Control Module

B0223 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.