← View Generic B0681 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

B0681: B0681: Climate Control 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 B0681 Mean on 2021 Honda PASSPORT?

The B0681 code indicates a malfunction in the climate control system, possibly due to a faulty temperature sensor, faulty blower motor, or a blockage in the air duct.
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Symptoms

  • • Inconsistent air flow
  • • uneven heating or cooling
  • • unusual noises from the climate control system
  • • or a complete failure of the system.
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Common Causes

  • • Faulty temperature sensor
  • • faulty blower motor
  • • blockage in the air duct
  • • faulty climate control module
  • • or a wiring issue.
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How to Fix B0681 on 2021 Honda PASSPORT

1. Check the air ducts for blockages and clean them if necessary. 2. Check the temperature sensor and blower motor for any signs of damage or malfunction. 3. Check the climate control module for any signs of damage or malfunction. 4. Check the wiring for any signs of damage or malfunction. 5. Replace the faulty component(s) if necessary.

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Parts for 2021 Honda PASSPORT

temperature sensor Shop ↗ blower motor Shop ↗ climate control module Shop ↗ wiring harness Shop ↗

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OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B0681

B0679 Sequential Code

B0679: Audio System Malfunction

Medium
B0680 Sequential Code

B0680: Airbag System Malfunction

High
B0682 Sequential Code

B0682: Door Locks Circuit Malfunction

Medium
B0683 Sequential Code

B0683: Window Regulator 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