OBD Guide

B1404

Driver Side Airbag Deployment Control Circuit

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Airbag light is on
  • No airbag response during diagnosis
  • Error message on the dashboard

Causes

  • Open or short circuit in wiring harness
  • Airbag squib malfunction
  • Problems with the airbag control unit
  • Corrosion or poor contact in connectors

How to Fix

  1. Check the wiring harness for breaks and short circuits
  2. Check the resistance of the airbag squib
  3. Inspect connectors for corrosion or damage
  4. Scan the airbag control unit for additional errors
  5. Replace damaged components if necessary

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