← Back to Search Severity: Medium

B0662

B0662: Immobilizer System Malfunction

Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0662 Mean?

The immobilizer system has malfunctioned, preventing the engine from starting or running. This code is typically set when the immobilizer system detects a problem with the key fob, keyless entry system, or ignition switch.
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Symptoms

  • Engine won't start
  • engine cranks but won't start
  • dashboard warning lights illuminated
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Common Causes

  • Faulty key fob
  • keyless entry system malfunction
  • ignition switch problem
  • immobilizer system wiring issue
Fix Guide
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Possible Solutions

1. Check the key fob battery level and replace if necessary. 2. Try resetting the immobilizer system by disconnecting the battery for 30 minutes. 3. Check the keyless entry system for any issues. 4. Inspect the ignition switch for signs of wear or damage. 5. Check the immobilizer system wiring for any damage or corrosion.

Common Questions About B0662

Can I drive with code B0662?

You can drive for a short time, but should address code B0662 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0662?

The estimated repair cost for code B0662 is between $50 and $200. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0662 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 wiring tester ignition switch tester
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Need a Pro?

Complex codes like B0662 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 B0662

💡 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