← View Generic B0605 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B0605: B0605: 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
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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 B0605 Mean on 2021 Honda PASSPORT?
This code indicates a malfunction in the vehicle's lighting system, such as a faulty headlight, taillight, or turn signal.
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Symptoms
- • Dim or inoperative headlights
- • taillights
- • or turn signals
- • unusual lighting patterns
- • or warning lights on the dashboard.
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Common Causes
- • Faulty headlight or taillight bulbs
- • wiring issues
- • blown fuses
- • or a malfunctioning lighting control module.
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How to Fix B0605 on 2021 Honda PASSPORT
1. Check and replace faulty bulbs. 2. Inspect and repair or replace wiring and connectors. 3. Check and reset blown fuses. 4. Test and replace the lighting control module if necessary.
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Need Maintenance Info for Your PASSPORT?
Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.
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Related Diagnostic Codes
Other codes that may appear with B0605
B0603
Sequential Code
B0603: Power Window Circuit Malfunction
Medium
B0604
Sequential Code
B0604: Seat Switch Circuit Malfunction
Medium
B0606
Sequential Code
B0606: Immobilizer System Malfunction
High
B0607
Sequential Code
B0607: 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