← Back to Search Severity: Medium

B0246

B0246: 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 B0246 Mean?

The immobilizer system has malfunctioned, preventing the vehicle from starting or running. This code indicates a problem with the immobilizer system's communication with the engine control module.
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Symptoms

  • Vehicle won't start
  • won't crank
  • or won't run
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Common Causes

  • Faulty immobilizer system module
  • faulty key fob
  • low battery in key fob
  • or incorrect key fob programming
Fix Guide
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Possible Solutions

1. Check the key fob battery level and replace if necessary. 2. Try reprogramming the key fob using a professional scan tool. 3. Replace the immobilizer system module if faulty. 4. Check for any loose connections or corrosion in the immobilizer system wiring.

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Common Questions About B0246

Q

Can I drive with code B0246?

A

You can drive for a short time, but should address code B0246 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix B0246?

A

The estimated repair cost for code B0246 is between $100 and $500. This includes parts and labor for most makes and models.

Q

Is this code easy to fix myself?

A

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

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Need a Pro?

Complex codes like B0246 can be tricky. Don't risk it if you're unsure.

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Related Diagnostic Codes

Other codes that may appear with B0246

💡 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