← View Generic B3403 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B3403: B3403: Power Window Regulator Malfunction

on 2021 Honda PASSPORT

Fix Cost

$150 - $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 B3403 Mean on 2021 Honda PASSPORT?

The power window regulator is malfunctioning, preventing the window from moving up or down properly.

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Symptoms

• Window stuck
• won't move
• or moves erratically
• may also trigger airbag light

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Common Causes

• Faulty power window regulator
• faulty window motor
• wiring issue
• or faulty body control module

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How to Fix B3403 on 2021 Honda PASSPORT

1. Disconnect battery, remove door panel, and inspect regulator and motor. Replace faulty parts. 2. Check wiring and body control module for damage or corrosion. 3. Test window operation after repairs.

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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

Power window regulator Shop ↗ Window motor Shop ↗ Wiring harness Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2021 Honda PASSPORT

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Related Diagnostic Codes

Other codes that may appear with B3403

B3401 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