← Back to Search Severity: Medium

B0546

B0546: 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 B0546 Mean?

The B0546 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.
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Symptoms

  • • Door locks may not function properly
  • • or may not lock or unlock at all
  • • or may lock/unlock randomly.
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Common Causes

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

1. Check the door locks actuator for any signs of physical damage or corrosion. If damaged, replace it. 2. Inspect the wiring harness for any signs of damage or corrosion. If damaged, repair or replace it. 3. Check the body control module for any fault codes. If a fault code is present, clear it and retest. 4. If the issue persists, replace the body control module.

❓ Common Questions About B0546

Can I drive with code B0546?

You can drive for a short time, but should address code B0546 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0546?

The estimated repair cost for code B0546 is between $100 and $300. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0546 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 B0546 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 B0546

B0544 Sequential Code

B0544: Airbag System Sensor Circuit Malfunction

Medium
B0545 Sequential Code

B0545: Climate Control Fan Motor Malfunction

Medium
B0547 Sequential Code

B0547: Power Window Relay Circuit Malfunction

Medium
B0548 Sequential Code

B0548: Seat Position Sensor 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