← View Generic B0506 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B0506: B0506: Door Locks Actuator Malfunction

on 2021 Honda PASSPORT

Fix Cost
$100 - $300
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2021 Honda
PASSPORT
⚠️

Important for 2021 Honda PASSPORT Owners

Before starting repairs, verify which engine your 2021 Honda PASSPORT has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B0506 Mean on 2021 Honda PASSPORT?

The B0506 code indicates a malfunction in the door lock actuator, which is responsible for locking and unlocking the doors. This code is usually triggered when the actuator is faulty or stuck.
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Symptoms

  • • Doors fail to lock or unlock
  • • clicking sound when trying to lock/unlock
  • • doors may be stuck in a locked or unlocked position
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Common Causes

  • • Faulty door lock actuator
  • • wiring issues
  • • door lock module failure
  • • faulty door lock switch
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How to Fix B0506 on 2021 Honda PASSPORT

1. Disconnect the battery to reset the system. 2. Check and clean the door lock actuator and surrounding areas. 3. Replace the door lock actuator if faulty. 4. Check and repair any wiring issues. 5. Replace the door lock module if faulty. 6. Check and replace the door lock switch if faulty.

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Need Maintenance Info for Your PASSPORT?

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Parts for 2021 Honda PASSPORT

Door lock actuator Shop ↗ Wiring harness Shop ↗ Door lock module Shop ↗ Door lock switch Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0506

B0504 Sequential Code

B0504: Airbag System Fault

High
B0505 Sequential Code

B0505: Climate Control Fan Motor Fault

Medium
B0507 Sequential Code

B0507: Power Window Circuit Malfunction

Medium
B0508 Sequential Code

B0508: 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