← Back to Search Severity: Medium

B0688

B0688: Airbag System Fault

Fix Cost
$200 - $800
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0688 Mean?

The airbag system has detected a fault, which may be caused by a malfunctioning sensor, wiring issue, or faulty airbag module.
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Symptoms

  • Airbag warning light on dashboard
  • airbag may not deploy in a crash
  • or airbag may deploy unexpectedly.
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Common Causes

  • Faulty airbag sensor
  • wiring issue
  • faulty airbag module
  • or a problem with the airbag control module.
Fix Guide
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Possible Solutions

1. Check the airbag sensor and wiring for damage or corrosion. Replace if necessary. 2. Check the airbag module and control module for faults. Replace if necessary. 3. Check the airbag system for any signs of physical damage. Repair or replace as necessary.

Common Questions About B0688

Can I drive with code B0688?

You can drive for a short time, but should address code B0688 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0688?

The estimated repair cost for code B0688 is between $200 and $800. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0688 easy to fix myself?

This repair is considered moderate. It may require specialized tools or significant disassembly. If you are not an experienced mechanic, professional help is recommended.

Required Parts

Tools

Multimeter Wire tester Airbag module tester Torx screwdriver
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Need a Pro?

Complex codes like B0688 can be tricky. Don't risk it if you're unsure.

Quick Stats

Severity Medium
DIY Friendly No
Est. Time 1-2 hours
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Related Diagnostic Codes

Other codes that may appear with B0688

💡 Why These Codes Are Related:

  • Similar Issues: Same root cause or component failure
  • Related Problems: Often occur together due to system interactions
  • Sequential Codes: Progressive failure stages or multiple sensors
  • Same System: Components within the same automotive system