← View Generic B1021 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B1021: B1021: Body System Code - Lighting 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

⚠️

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 B1021 Mean on 2021 Honda PASSPORT?

This code indicates a malfunction in the vehicle's lighting system, such as a faulty headlight, taillight, or brake light.

⚠️

Symptoms

• Dim or inoperative headlights
• taillights
• or brake lights
• or a combination of these issues.

🔍

Common Causes

• Faulty headlight or taillight bulb
• wiring issue
• or a problem with the body control module.

🛠️

How to Fix B1021 on 2021 Honda PASSPORT

Check the headlight or taillight bulb and replace it if necessary. Inspect the wiring and connectors for damage or corrosion and repair as needed. Update the body control module's software if necessary.

🔧

Need Maintenance Info for Your PASSPORT?

Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.

View 2021 Honda PASSPORT Specs

Parts for 2021 Honda PASSPORT

headlight or taillight bulb Shop ↗ wiring harness Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2021 Honda PASSPORT

Shop Scanners ↗

🔗

Related Diagnostic Codes

Other codes that may appear with B1021

B1019 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