OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Body generic / SAE

B0025

Left Side Deployment Stage 2 Control

A fault is detected in the deployment control for the second stage of the left side airbag, used in vehicles with two-stage side restraint systems.

SystemBody
Typegeneric / SAE
GroupB0
Range / number– / 25

Possible causes

  • Stage 2 squib circuit fault high
  • Corroded connector medium

Symptoms

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

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 150–1000 €
  • Estimated time: 0.8–3 h
  • Component: driver side airbag
  • Component: srs control module

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication