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OBD-II · B0002

Driver Frontal Stage 2 Deployment Control

The SRS module has detected a fault in the deployment control circuit for the second stage of the driver frontal airbag. Dual-stage airbags use two charges for severity-dependent deployment — this code indicates the high-severity stage cannot be triggered reliably.

What this code tells you

The vehicle detected a condition matching the diagnostic criteria for B0002. The code guides testing; it does not confirm which component caused the condition.

Reasonable next steps

  1. Record all stored and pending codes plus freeze-frame data before clearing anything.
  2. Check service information for the exact year, make, model and powertrain.
  3. Inspect related wiring, connectors, hoses and obvious damage before replacing parts.
  4. Use measured test results or a qualified technician to confirm the root cause.
A flashing check-engine light, severe misfire, overheating, oil-pressure warning, brake warning or unsafe drivability warrants stopping safely and obtaining professional help.