← View Generic B3145 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B3145: B3145: Climate Control Fan Motor Malfunction

on 2021 Honda PASSPORT

Fix Cost

$150 - $300

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 B3145 Mean on 2021 Honda PASSPORT?

This code indicates a malfunction in the climate control fan motor, which may cause issues with airflow and temperature regulation.

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Symptoms

• Inconsistent airflow
• uneven heating or cooling
• unusual noises from the climate control system

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Common Causes

• Faulty fan motor
• faulty fan motor resistor
• clogged air ducts
• faulty climate control module

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How to Fix B3145 on 2021 Honda PASSPORT

1. Disconnect the battery to prevent electrical shock. 2. Locate the fan motor and resistor. 3. Check for any signs of physical damage or corrosion. 4. Test the fan motor for proper operation. 5. Replace the fan motor or resistor if faulty. 6. Reassemble the climate control system and test for proper function.

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Need Maintenance Info for Your PASSPORT?

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Parts for 2021 Honda PASSPORT

Fan motor Shop ↗ Fan motor resistor Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B3145

B3143 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