← View Generic B0789 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B0789: B0789: Headlight Dim or Failure

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 B0789 Mean on 2021 Honda PASSPORT?

The B0789 code indicates a problem with the headlight circuit, possibly due to a faulty headlight relay, fuse, or wiring issue.

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Symptoms

• Dim or failed headlights
• intermittent headlight operation
• or a warning light on the dashboard.

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Common Causes

• Faulty headlight relay
• blown headlight fuse
• corroded or damaged wiring
• or a malfunctioning headlight module.

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How to Fix B0789 on 2021 Honda PASSPORT

1. Check the headlight relay and replace it if faulty. 2. Inspect the headlight fuse and replace it if blown. 3. Inspect and clean the wiring and connectors. 4. Test the headlight module and replace it if faulty.

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Need Maintenance Info for Your PASSPORT?

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Parts for 2021 Honda PASSPORT

Headlight relay Shop ↗ Headlight fuse Shop ↗ Wiring and connectors Shop ↗

Essential Tool

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OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B0789

B0787 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