← View Generic B0484 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B0484: B0484: Seat Switch Malfunction

on 2021 Honda PASSPORT

Fix Cost

$50 - $200

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 B0484 Mean on 2021 Honda PASSPORT?

The Body Control Module (BCM) has detected a malfunction in the seat switch circuit, which may cause issues with seat functionality, such as failure to adjust or lock in position.

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Symptoms

• Seat won't adjust
• seat won't lock in position
• seat may feel loose or saggy

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Common Causes

• Faulty seat switch
• wiring issue
• BCM malfunction
• seat adjustment mechanism failure

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How to Fix B0484 on 2021 Honda PASSPORT

1. Check seat switch for damage or corrosion and replace if necessary. 2. Inspect wiring for damage or corrosion and repair if necessary. 3. Update BCM software if necessary. 4. Check seat adjustment mechanism for damage or wear and replace if necessary.

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Parts for 2021 Honda PASSPORT

Seat switch Shop ↗ Wiring harness Shop ↗ BCM software update Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B0484

B0482 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