← View Generic B1029 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B1029: B1029: Body System Code - Malfunctioning Exterior Lighting

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 B1029 Mean on 2021 Honda PASSPORT?

This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal. The code may also be triggered by a faulty wiring harness or a malfunctioning body control module.
⚠️

Symptoms

  • • Dim or non-functioning exterior lights
  • • faulty turn signals
  • • or flickering lights
🔍

Common Causes

  • • Faulty headlight or taillight bulb
  • • wiring harness damage
  • • body control module malfunction
  • • or faulty exterior lighting switch
🛠️

How to Fix B1029 on 2021 Honda PASSPORT

1. Check and replace faulty bulbs, 2. Inspect and repair damaged wiring harness, 3. Update body control module software, 4. Replace faulty exterior lighting switch

🔧

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

Exterior lighting bulb Shop ↗ Wiring harness Shop ↗ Body control module Shop ↗ Exterior lighting switch 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 B1029

B1027 Sequential Code

B1027: Power Window Circuit Malfunction

Medium
B1028 Sequential Code

B1028: Seat Switch Circuit Malfunction

Medium
B1030 Sequential Code

B1030: Immobilizer System Malfunction

Medium
B1031 Sequential Code

B1031: Audio System Malfunction

Medium

💡 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