← Back to Search Severity: High

B0520

B0520: Airbag System Malfunction

Fix Cost
$200 - $800
Parts & Labor
Difficulty
4/5
Hard
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0520 Mean?

The airbag system has detected a malfunction, which may prevent the airbags from deploying properly in the event of a crash.
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Symptoms

  • Airbag warning light on dashboard
  • airbag system not functioning
  • or airbag deployment failure
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Common Causes

  • Faulty airbag sensor
  • wiring issue
  • or airbag module malfunction
Fix Guide
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Possible Solutions

1. Check and clear any trouble codes using a scan tool. 2. Inspect and repair any damaged wiring. 3. Replace the airbag sensor or module if faulty. 4. Test the airbag system to ensure proper function.

Common Questions About B0520

Can I drive with code B0520?

No, it is not recommended. Seeing code B0520 indicates a serious issue that could damage your engine or transmission if ignored. You should stop driving and have it inspected immediately.

How much does it cost to fix code B0520?

The estimated repair cost for code B0520 is between $200 and $800. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0520 easy to fix myself?

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

Required Parts

Tools

Scan tool Multimeter Wire tester
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Need a Pro?

Complex codes like B0520 can be tricky. Don't risk it if you're unsure.

Quick Stats

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

Other codes that may appear with B0520

💡 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