← View Generic B0905 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0905: B0905: 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?
❌ No
Pro recommended
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 B0905 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B0905 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 issue
  • • blown fuse
🛠️

How to Fix B0905 on 2020 Chevrolet SILVERADO 1500 PICKUP

Check the fan motor for any signs of physical damage or corrosion Inspect the fan motor resistor for any signs of wear or damage Check the wiring harness for any signs of damage or corrosion Replace the fan motor or fan motor resistor if necessary Check and replace the blown fuse if necessary

🔧

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Fan motor Shop ↗ Fan motor resistor Shop ↗ Wiring harness Shop ↗ Fuse Shop ↗

Essential Tool

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OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B0905

B0903 Sequential Code

B0903: Audio System Malfunction

Medium
B0904 Sequential Code

B0904: Airbag System Fault

High
B0906 Sequential Code

B0906: Door Locks Malfunction

Medium
B0907 Sequential Code

B0907: Power Window Relay 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