← Back to Search Severity: Medium

B0054

B0054: Immobilizer System Malfunction

Fix Cost
$100 - $500
Est. parts cost
Labor Cost
$60 - $120
Mechanic rates
Difficulty
3/5
Moderate
1-2 hours
DIY Fix?
❌ No
See mechanic

📖 What Does B0054 Mean?

The immobilizer system is malfunctioning, preventing the vehicle from starting or running. This code is usually caused by a faulty immobilizer module, key fob, or wiring issue.

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Symptoms

Vehicle will not start, may flash the security light on the dashboard, or have a 'check engine' light on.

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Common Causes

Faulty immobilizer module, key fob, wiring issue, or incorrect key code.

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Possible Solutions

1. Check the key fob battery level and replace if necessary. 2. Check the wiring harness for damage or corrosion. 3. Replace the immobilizer module if faulty. 4. Update the key code if necessary.

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Recommended Parts & Tools

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Frequently Asked Questions about B0054

How serious is B0054?

This code has a medium severity level. This should be diagnosed and repaired soon to prevent further issues.

Can I drive with B0054?

You can typically drive short distances, but have it diagnosed as soon as possible.

How much does it cost to fix B0054?

Repair costs vary depending on the root cause, but typically range from $100-300 including parts and labor.

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Related Diagnostic Codes

Other codes that may appear with B0054

💡 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