← View Generic B0246 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B0246: B0246: 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 B0246 Mean on 2021 Honda PASSPORT?

The immobilizer system has malfunctioned, preventing the vehicle from starting or running. This code indicates a problem with the immobilizer system's communication with the engine control module.

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Symptoms

• Vehicle won't start
• won't crank
• or won't run

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Common Causes

• Faulty immobilizer system module
• faulty key fob
• low battery in key fob
• or incorrect key fob programming

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How to Fix B0246 on 2021 Honda PASSPORT

1. Check the key fob battery level and replace if necessary. 2. Try reprogramming the key fob using a professional scan tool. 3. Replace the immobilizer system module if faulty. 4. Check for any loose connections or corrosion in the immobilizer system 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.

View 2021 Honda PASSPORT Specs

Parts for 2021 Honda PASSPORT

immobilizer system module Shop ↗ key fob Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B0246

B0244 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