← View Generic B2405 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B2405: B2405: Turn Signal Lamp Malfunction

on 2021 Honda PASSPORT

Fix Cost

$50 - $200

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 B2405 Mean on 2021 Honda PASSPORT?

The B2405 code indicates a malfunction in the turn signal lamp circuit, which can cause the turn signal lights to malfunction or not function at all.

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Symptoms

• Turn signal lights not functioning
• flashing erratically
• or not turning off when the turn signal is cancelled

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Common Causes

• Faulty turn signal lamp
• wiring issue
• or a problem with the turn signal switch

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How to Fix B2405 on 2021 Honda PASSPORT

1. Check the turn signal lamp for any signs of damage or wear. Replace if necessary. 2. Inspect the wiring harness for any signs of damage or corrosion. Repair or replace as needed. 3. Check the turn signal switch for any signs of wear or damage. Clean or replace as needed.

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Parts for 2021 Honda PASSPORT

Turn signal lamp Shop ↗ Wiring harness Shop ↗ Turn signal switch Shop ↗

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OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B2405

B2403 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