← View Generic B0665 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0665: B0665: Climate Control Fan Motor Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $150
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
⚠️

Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B0665 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

This code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate intermittently.
⚠️

Symptoms

  • • Fan not blowing
  • • uneven airflow
  • • strange noises from the fan
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Common Causes

  • • Faulty fan motor
  • • faulty fan motor resistor
  • • wiring issues
  • • blown fuse
🛠️

How to Fix B0665 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the fan motor resistor for any signs of damage or corrosion. Replace if necessary. 2. Check the wiring harness for any signs of damage or corrosion. Repair or replace if necessary. 3. Check the fan motor for any signs of damage or corrosion. Replace if necessary. 4. Check the fan motor fuse and replace if blown.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Fan motor resistor Shop ↗ Fan motor Shop ↗ Wiring harness Shop ↗ Fan motor fuse Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0665

B0663 Sequential Code

B0663: Audio System Fault

Medium
B0664 Sequential Code

B0664: Airbag System Deployment Sensor Circuit Malfunction

High
B0666 Sequential Code

B0666: Door Locks Actuator Circuit Malfunction

Medium
B0667 Sequential Code

B0667: Power 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