← View Generic B0301 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B0301: B0301: Body System Code - Low Beam Headlight Relay Circuit Malfunction

on 2021 Honda PASSPORT

Fix Cost

$50 - $150

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 B0301 Mean on 2021 Honda PASSPORT?

The B0301 code indicates a malfunction in the low beam headlight relay circuit, which can cause the low beam headlights to malfunction or not function at all.

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Symptoms

• Headlights not functioning
• dim or flickering lights
• difficulty seeing at night

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Common Causes

• Faulty low beam headlight relay
• wiring issues
• blown fuse
• headlight switch malfunction

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How to Fix B0301 on 2021 Honda PASSPORT

1. Check the headlight relay and replace it if faulty. 2. Inspect and repair any wiring issues. 3. Check and replace the fuse if blown. 4. Test the headlight switch to ensure it's functioning properly.

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Need Maintenance Info for Your PASSPORT?

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Parts for 2021 Honda PASSPORT

Low beam headlight relay Shop ↗ Fuses Shop ↗ Wiring harness Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B0301

B0299 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