B0020

Dodge Front Passenger Side Airbag Deployment Control

Specialized diagnostic report for Dodge owners dealing with the B0020 fault code.

Technician's Overview

🔴 CRITICAL — STOP DRIVING

SRS module detected a fault in the passenger-side airbag deployment circuit. When this code is triggered in a Dodge, the engine control module (ECM) has detected an issue with the Airbag / SRS system.

Common Symptoms
  • Airbag / SRS warning light illuminated in my Dodge
  • Passenger airbag may be disabled in my Dodge
  • Supplemental restraint system offline in my Dodge
Probable Causes
  • Clock spring (clockspring) failure — connector spinning contact broken
  • Shorting or open in the airbag squib circuit
  • Corroded SRS connector under passenger seat
  • Faulty SRS control module
Recommended Fixes for Dodge
  1. CRITICAL: Disable SRS before any work — disconnect battery, wait 10+ minutes
  2. Inspect airbag module yellow connectors under front seats for corrosion
  3. Test clock spring continuity; replace if broken (driver side unit)
  4. Clear code with bi-directional scan tool after repair — basic readers cannot reset SRS
QUICK FIX TOOL

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