← View Generic B0066 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B0066: B0066: Door Locks Actuator Circuit 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

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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 B0066 Mean on 2021 Honda PASSPORT?

The B0066 code indicates a malfunction in the door locks actuator circuit, which may cause issues with door locking and unlocking functions.

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Symptoms

• Door locks may not function properly
• or may lock/unlock randomly
• or may not respond to key fob commands.

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Common Causes

• Faulty door locks actuator
• wiring issues
• faulty body control module
• or a malfunctioning door lock switch.

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How to Fix B0066 on 2021 Honda PASSPORT

1. Check and repair or replace faulty wiring. 2. Test and replace the door locks actuator if necessary. 3. Update the body control module software if necessary. 4. Check and repair or replace the door lock switch if necessary.

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Need Maintenance Info for Your PASSPORT?

Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.

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Parts for 2021 Honda PASSPORT

Door locks actuator Shop ↗ Wiring harness Shop ↗ Body control module Shop ↗ Door lock switch Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0066

B0064 Sequential Code

💡 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