← View Generic B0429 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B0429: B0429: Exterior 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
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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 B0429 Mean on 2021 Honda PASSPORT?
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
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Symptoms
- • Dim or inoperative exterior lights
- • warning lights on dashboard
- • difficulty seeing at night
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Common Causes
- • Faulty headlight or taillight bulb
- • wiring issue
- • faulty headlight or taillight switch
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How to Fix B0429 on 2021 Honda PASSPORT
1. Check and replace faulty bulb(s), 2. Inspect and repair wiring as needed, 3. Replace faulty headlight or taillight switch
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Need Maintenance Info for Your PASSPORT?
Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.
View 2021 Honda PASSPORT SpecsParts for 2021 Honda PASSPORT
Essential Tool
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Related Diagnostic Codes
Other codes that may appear with B0429
B0427
Sequential Code
B0427: Window Regulator Motor Circuit Malfunction
Medium
B0428
Sequential Code
B0428: Seat Position Sensor Circuit Malfunction
Medium
B0430
Sequential Code
B0430: Body System Code - Security System Malfunction
Medium
B0431
Sequential Code
B0431: 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