← View Generic B2339 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B2339: B2339: Power Window Relay Circuit Malfunction
on 2021 Honda PASSPORT
Fix Cost
$100 - $300
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 B2339 Mean on 2021 Honda PASSPORT?
The power window relay circuit has malfunctioned, preventing the windows from functioning properly.
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Symptoms
- • Windows won't roll up or down
- • or do so intermittently
- • with no warning lights on the dashboard.
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Common Causes
- • Faulty power window relay
- • wiring issues
- • or a malfunctioning window switch.
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How to Fix B2339 on 2021 Honda PASSPORT
1. Disconnect the battery to reset the system. 2. Check and clean the wiring and connectors. 3. Replace the power window relay if faulty. 4. Test the window switch and replace 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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Essential Tool
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Related Diagnostic Codes
Other codes that may appear with B2339
B2337
Sequential Code
B2337: Climate Control Actuator Malfunction
Medium
B2338
Sequential Code
B2338: Door Locks Actuator Circuit Malfunction
Medium
B2340
Sequential Code
B2340: Seat Position Sensor Circuit Malfunction
Medium
B2341
Sequential Code
B2341: Malfunction Indicator Lamp (MIL) Circuit 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