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B0966

B0966: Immobilizer System Malfunction

Fix Cost
$200 - $1000
Parts & Labor
Difficulty
4/5
Hard
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0966 Mean?

The immobilizer system has malfunctioned, preventing the vehicle from starting or running. This code is typically set when the immobilizer system detects an incorrect key or a faulty keyless entry system.
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Symptoms

  • Vehicle will not start
  • or will not run
  • due to immobilizer system malfunction
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Common Causes

  • Faulty immobilizer system
  • incorrect or damaged key
  • faulty keyless entry system
  • or wiring issues
Fix Guide
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Possible Solutions

1. Check the keyless entry system for any issues or damage. 2. Try to start the vehicle with a spare key to verify if the issue is with the key or the immobilizer system. 3. Check the wiring and connections to the immobilizer system for any damage or corrosion. 4. Replace the immobilizer system if necessary.

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Common Questions About B0966

Q

Can I drive with code B0966?

A

No, it is not recommended. Seeing code B0966 indicates a serious issue that could damage your engine or transmission if ignored. You should stop driving and have it inspected immediately.

Q

How much does it cost to fix B0966?

A

The estimated repair cost for code B0966 is between $200 and $1000. This includes parts and labor for most makes and models.

Q

Is this code easy to fix myself?

A

This repair is considered difficult. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.

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Related Diagnostic Codes

Other codes that may appear with B0966

💡 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