← Back to Search Severity: Medium

B0758

B0758: 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 B0758 Mean?

The immobilizer system has malfunctioned, preventing the vehicle from starting. This code is usually triggered by a faulty immobilizer key fob, a malfunctioning immobilizer module, or a problem with the communication between the key fob and the immobilizer module.
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Symptoms

  • Vehicle won't start
  • key fob not recognized
  • alarm system not disarming
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Common Causes

  • Faulty immobilizer key fob
  • malfunctioning immobilizer module
  • bad communication between key fob and immobilizer module
  • low battery in key fob
Fix Guide
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Possible Solutions

1. Check the key fob battery level and replace it if necessary. 2. Try to reset the immobilizer system by disconnecting the battery for 30 minutes. 3. If the issue persists, replace the immobilizer key fob. 4. If the issue still persists, replace the immobilizer module.

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Common Questions About B0758

Q

Can I drive with code B0758?

A

You can drive for a short time, but should address code B0758 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix B0758?

A

The estimated repair cost for code B0758 is between $50 and $200. 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 B0758 can be tricky. Don't risk it if you're unsure.

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Related Diagnostic Codes

Other codes that may appear with B0758

💡 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