← View Generic B2391 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B2391: B2391: Audio System Fault
on 2021 Honda PASSPORT
Fix Cost
$100 - $500
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 B2391 Mean on 2021 Honda PASSPORT?
The B2391 code indicates a fault in the audio system, possibly due to a malfunctioning amplifier, speaker, or wiring issue.
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Symptoms
- • No sound from speakers
- • distorted sound
- • or intermittent audio failure
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Common Causes
- • Faulty amplifier
- • blown speaker
- • wiring damage
- • or loose connections
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How to Fix B2391 on 2021 Honda PASSPORT
1. Check and clean all connections; 2. Inspect and replace blown speakers; 3. Test and replace faulty amplifier; 4. Repair or replace damaged wiring
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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 B2391
B2389
Sequential Code
B2389: Body System Code - Lighting Malfunction
Medium
B2390
Sequential Code
B2390: Body Control Module (BCM) Security System Malfunction
Medium
B2392
Sequential Code
B2392: Airbag System Fault
High
B2393
Sequential Code
B2393: Climate Control Actuator 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