← View Generic B1810 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B1810: B1810: Door Locks Malfunction

on 2021 Honda PASSPORT

Fix Cost

$100 - $300

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

✅ Yes

Save money

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 B1810 Mean on 2021 Honda PASSPORT?

The B1810 code indicates a malfunction in the door lock system, which may cause the doors to lock or unlock unexpectedly, or fail to function properly.

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Symptoms

• Doors locking or unlocking unexpectedly
• failure to lock or unlock
• door ajar warning light on dashboard

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Common Causes

• Faulty door lock actuator
• wiring issue
• faulty door lock module
• faulty door switch

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How to Fix B1810 on 2021 Honda PASSPORT

1. Disconnect battery to reset system. 2. Check and repair or replace faulty door lock actuator. 3. Check and repair or replace wiring. 4. Check and repair or replace door lock module. 5. Check and repair or replace door switch.

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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 switch Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1810

B1808 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