← View Generic B0037 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B0037: B0037: 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 B0037 Mean on 2021 Honda PASSPORT?
This code indicates a malfunction in 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 issues
- • or a blown fuse.
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How to Fix B0037 on 2021 Honda PASSPORT
1. Check and replace faulty bulbs. 2. Inspect and repair or replace wiring as needed. 3. Check and replace blown fuses.
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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 B0037
B0035
Sequential Code
B0035: Power Window Relay Circuit Malfunction
Medium
B0036
Sequential Code
B0036: Seat Position Sensor Malfunction
Medium
B0038
Sequential Code
B0038: Body System Security Malfunction
Medium
B0039
Sequential Code
B0039: 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