← View Generic B3173 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B3173: B3173: 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 B3173 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 the dashboard
- • or difficulty seeing at night.
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Common Causes
- • Faulty headlight or taillight bulb
- • wiring issue
- • or a problem with the lighting control module.
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How to Fix B3173 on 2021 Honda PASSPORT
1. Check and replace the faulty bulb. 2. Inspect and repair any damaged wiring. 3. Update 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.
View 2021 Honda PASSPORT SpecsParts for 2021 Honda PASSPORT
Essential Tool
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Related Diagnostic Codes
Other codes that may appear with B3173
B3171
Sequential Code
B3171: Power Window Regulator Malfunction
Medium
B3172
Sequential Code
B3172: Seat Position Sensor Circuit Malfunction
Medium
B3174
Sequential Code
B3174: Immobilizer System Malfunction
High
B3175
Sequential Code
B3175: 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