← View Generic B3150 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B3150: B3150: Body Control Module (BCM) Security System 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 B3150 Mean on 2021 Honda PASSPORT?

The Body Control Module (BCM) has detected a security system malfunction, which may be caused by a faulty sensor, wiring issue, or software problem.

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Symptoms

• Alarm sounds
• doors lock/unlock randomly
• security light flashes

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Common Causes

• Faulty BCM
• faulty sensor
• wiring issue
• software problem
• battery drain

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How to Fix B3150 on 2021 Honda PASSPORT

1. Check BCM fuse and replace if blown. 2. Check and replace faulty sensor. 3. Check wiring for damage and repair. 4. Update BCM software if necessary. 5. Check battery condition and charge if necessary.

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Need Maintenance Info for Your PASSPORT?

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Parts for 2021 Honda PASSPORT

BCM fuse Shop ↗ sensor Shop ↗ wiring harness Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2021 Honda PASSPORT

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Related Diagnostic Codes

Other codes that may appear with B3150

B3148 Sequential Code

💡 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