← View Generic B3446 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B3446: B3446: Immobilizer 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 B3446 Mean on 2021 Honda PASSPORT?

The immobilizer system has detected a malfunction, preventing the engine from starting. This code is typically set when the immobilizer system is not functioning correctly, preventing the engine from starting.

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Symptoms

• Engine will not start
• immobilizer light on dashboard

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Common Causes

• Faulty immobilizer module
• faulty key fob
• low battery voltage
• wiring issues

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How to Fix B3446 on 2021 Honda PASSPORT

1. Check key fob battery level and replace if necessary. 2. Check immobilizer module for any signs of physical damage. 3. Check wiring harness for any signs of damage or corrosion. 4. If issue persists, replace immobilizer module.

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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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Parts for 2021 Honda PASSPORT

immobilizer module Shop ↗ key fob Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B3446

B3444 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