← View Generic B1105 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B1105: B1105: Climate Control 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
⚠️

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 B1105 Mean on 2021 Honda PASSPORT?

This code indicates a problem with the climate control system, such as a faulty temperature sensor, clogged air ducts, or a malfunctioning blower motor.
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Symptoms

  • • Inconsistent air flow
  • • uneven heating or cooling
  • • unusual noises
  • • or a complete loss of climate control functionality.
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Common Causes

  • • Faulty temperature sensor
  • • clogged air ducts
  • • malfunctioning blower motor
  • • faulty climate control module
  • • or a wiring issue.
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How to Fix B1105 on 2021 Honda PASSPORT

Check and clean air ducts and vents Replace faulty temperature sensor Inspect and replace blower motor if necessary Update climate control module software Check and repair wiring issues

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Need Maintenance Info for Your PASSPORT?

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Parts for 2021 Honda PASSPORT

temperature sensor Shop ↗ air duct cleaning kit Shop ↗ blower motor Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1105

B1103 Sequential Code

B1103: Audio System Malfunction

Medium
B1104 Sequential Code

B1104: Airbag System Fault

High
B1106 Sequential Code

B1106: Door Locks Malfunction

Medium
B1107 Sequential Code

B1107: Power Window Switch Circuit Malfunction

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