← View Generic B1931 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B1931: B1931: Power Window Circuit Malfunction
on 2021 Honda PASSPORT
Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
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 B1931 Mean on 2021 Honda PASSPORT?
The B1931 code indicates a problem with the power window circuit, which can cause windows to malfunction or not function at all.
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Symptoms
- • Windows not moving
- • stuck
- • or not responding to switch
- • intermittent window operation
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Common Causes
- • Faulty window regulator
- • faulty window switch
- • wiring issue
- • blown fuse
- • or faulty door module
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How to Fix B1931 on 2021 Honda PASSPORT
1. Check and replace blown fuse. 2. Inspect and clean window switch and wiring. 3. Replace faulty window regulator or switch. 4. Check door module 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 B1931
B1929
Sequential Code
B1929: Climate Control Actuator Malfunction
Medium
B1930
Sequential Code
B1930: Door Locks Malfunction
Medium
B1932
Sequential Code
B1932: Seat Position Sensor Circuit Malfunction
Medium
B1933
Sequential Code
B1933: Exterior Lighting 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