← Back to Search Severity: Medium

B0426

B0426: Door Locks Actuator Circuit Malfunction

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

📖 What Does B0426 Mean?

The B0426 code indicates a malfunction in the door locks actuator circuit, which prevents the door locks from functioning properly.
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Symptoms

  • Door locks won't unlock or lock
  • or only partially unlock/lock
  • may be stuck in a specific position
  • or make unusual noises.
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Common Causes

  • Faulty door locks actuator
  • wiring issues
  • blown fuse
  • or a problem with the body control module.
Fix Guide
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Possible Solutions

1. Check the fuse box for a blown fuse and replace it if necessary. 2. Inspect the wiring and connectors for damage or corrosion and repair/replace as needed. 3. Test the door locks actuator and replace it if faulty. 4. Update the body control module's software if necessary.

Common Questions About B0426

Can I drive with code B0426?

You can drive for a short time, but should address code B0426 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0426?

The estimated repair cost for code B0426 is between $50 and $200. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0426 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 Torx screwdriver
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Need a Pro?

Complex codes like B0426 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 B0426

💡 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