← Back to Search Severity: Medium

B0634

B0634: 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 B0634 Mean?

The B0634 code indicates a malfunction in the door locks actuator circuit, which controls the operation of the door locks. This can cause issues with locking and unlocking the doors, and may also trigger the airbag light to come on.
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Symptoms

  • • Doors may not lock or unlock properly
  • • airbag light may be illuminated
  • • door locks may be stuck or jammed
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Common Causes

  • • Faulty door locks actuator
  • • wiring issue
  • • faulty body control module
  • • corrosion or water damage in the door locks circuit
Fix Guide
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Possible Solutions

1. Check the door locks actuator for signs of wear or damage and replace it if necessary. 2. Inspect the wiring and connectors for damage or corrosion and repair or replace as needed. 3. Check the body control module for any fault codes and clear any stored codes. 4. If the issue persists, consider replacing the body control module.

❓ Common Questions About B0634

Can I drive with code B0634?

You can drive for a short time, but should address code B0634 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0634?

The estimated repair cost for code B0634 is between $100 and $300. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0634 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 B0634 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 B0634

B0632 Sequential Code

B0632: Airbag System Module Fault

High
B0633 Sequential Code

B0633: Climate Control Fan Motor Fault

Medium
B0635 Sequential Code

B0635: Power Window Regulator Fault

Medium
B0636 Sequential Code

B0636: Seat Switch Circuit Malfunction

Medium

💡 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