OBD Guide

B0068

Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Voltage Out of Range

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • Airbag light is on
  • SRS does not activate in case of accident
  • Error message on the dashboard

Causes

  • Broken or damaged wiring harness
  • Short circuit in the circuit
  • Side curtain squib malfunction
  • Problems with the SRS control module
  • Contact corrosion

How to Fix

  1. Diagnose the SRS system using a scanner
  2. Check the integrity of the wiring harness and contacts
  3. Replace damaged components (squib, wiring harness)
  4. Reset the error and test the system
  5. If necessary, replace the SRS control module

Related codes

Error B0068 by Vehicle Brand