← View Generic B3391 Guide
Severity: Medium
🚗
Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
B3391: B3391: Audio System Fault
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
⚠️
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 B3391 Mean on 2021 Honda PASSPORT?
The B3391 code indicates a malfunction in the audio system, possibly due to a faulty amplifier, speaker, or wiring issue.
⚠️
Symptoms
- • No sound from speakers
- • distorted sound
- • or intermittent audio failure
🔍
Common Causes
- • Faulty amplifier
- • blown speaker
- • wiring damage
- • or loose connections
🛠️
How to Fix B3391 on 2021 Honda PASSPORT
1. Check and clean all connections and wiring. 2. Test the amplifier and replace if faulty. 3. Replace blown speaker(s). 4. Check and adjust audio settings.
🔧
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
🔗
Related Diagnostic Codes
Other codes that may appear with B3391
B3389
Sequential Code
B3389: Exterior Lighting Malfunction
Medium
B3390
Sequential Code
B3390: Immobilizer System Malfunction
High
B3392
Sequential Code
B3392: Airbag System Fault
Medium
B3393
Sequential Code
B3393: Climate Control Fan Motor Fault
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