OBD Guide

B1212

Driver Seatbelt Buckle Pretensioner Deployment Control Circuit

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

Symptoms

  • SRS/airbag indicator is on
  • Security error message on dashboard
  • Seat belt pretensioner malfunction

Causes

  • Pretensioner control circuit open
  • Short circuit in the circuit
  • Oxidation of contacts in connectors
  • Pretensioner squib malfunction
  • Wiring harness damage
  • SRS module malfunction

How to Fix

  1. Carry out diagnostics of the SSS system with a scanner
  2. Check pretensioner chain resistance
  3. Inspect connectors and contacts for oxidation
  4. Check the condition of the wiring harness
  5. If necessary, replace the pretensioner squib
  6. Reset SRS module errors after repair

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