← Back to Search Severity: Medium

B0394

B0394: Door Locks Actuator Circuit Malfunction

Fix Cost
$100 - $300
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0394 Mean?

The B0394 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking or unlocking.
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Symptoms

  • Door locks fail to operate
  • doors may not lock or unlock properly
  • or a warning light on the dashboard.
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Common Causes

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

1. Check the door locks actuator for any signs of damage or corrosion. Replace if necessary. 2. Inspect the wiring harness for any damage or wear. Repair or replace as needed. 3. Update the body control module's software if necessary. 4. Check for any loose connections and secure them.

Common Questions About B0394

Can I drive with code B0394?

You can drive for a short time, but should address code B0394 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0394?

The estimated repair cost for code B0394 is between $100 and $300. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0394 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 B0394 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 B0394

💡 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