← View Generic B3274 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B3274: B3274: Door Locks Malfunction

on 2021 Honda PASSPORT

Fix Cost

$100 - $500

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 B3274 Mean on 2021 Honda PASSPORT?

The B3274 code indicates a malfunction in the door lock system, which can cause issues with locking and unlocking doors.

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Symptoms

• Doors may not lock or unlock properly
• or may do so intermittently
• and may also trigger a warning light on the dashboard.

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Common Causes

• Faulty door lock actuators
• wiring issues
• or a malfunctioning body control module.

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How to Fix B3274 on 2021 Honda PASSPORT

1. Check the door lock actuators for proper function and replace if faulty. 2. Inspect wiring for damage or corrosion and repair as needed. 3. Update the body control module software if necessary. 4. Check for any loose connections and secure them.

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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 ↗ Body control module Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B3274

B3272 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