← Back to Search Severity: High

B0606

B0606: Immobilizer System Malfunction

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0606 Mean?

The immobilizer system has detected a malfunction, preventing the vehicle from starting. This code is usually triggered by a faulty immobilizer module, key fob, or wiring issue.
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Symptoms

  • Vehicle will not start
  • immobilizer light on dashboard is illuminated
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Common Causes

  • Faulty immobilizer module
  • key fob battery low or dead
  • wiring issue
  • faulty ignition switch
Fix Guide
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Possible Solutions

1. Check key fob battery and replace if necessary. 2. Inspect wiring and connectors for damage or corrosion. 3. Test immobilizer module and replace if faulty. 4. Check ignition switch for proper operation.

Common Questions About B0606

Can I drive with code B0606?

No, it is not recommended. Seeing code B0606 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 B0606?

The estimated repair cost for code B0606 is between $100 and $500. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0606 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 ignition switch tester
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Need a Pro?

Complex codes like B0606 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 B0606

💡 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