← View Generic B1817 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1817: B1817: Climate Control Fan Motor Fault

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $300
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 B1817 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B1817 code indicates a fault in the climate control fan motor circuit, which may cause the fan to malfunction or not function at all.
⚠️

Symptoms

  • • Inadequate airflow
  • • uneven airflow
  • • or no airflow from the climate control vents
  • • unusual noises from the fan motor
  • • or the fan not turning on.
🔍

Common Causes

  • • Faulty climate control fan motor
  • • faulty fan motor resistor
  • • wiring issues
  • • or a blown fuse.
🛠️

How to Fix B1817 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Disconnect the battery to prevent any electrical shocks. 2. Locate the climate control fan motor and fan motor resistor. 3. Check the wiring and connections for any signs of damage or corrosion. 4. Test the fan motor and fan motor resistor for any signs of failure. 5. Replace the faulty fan motor or fan motor resistor as needed. 6. Reconnect the battery and test the climate control system.

🔧

Need Maintenance Info for Your SILVERADO 1500 PICKUP?

Get oil capacity, filter specs, and torque settings for your specific 2020 Chevrolet SILVERADO 1500 PICKUP.

View 2020 Chevrolet SILVERADO 1500 PICKUP Specs

Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Climate control fan motor Shop ↗ Fan motor resistor Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2020 Chevrolet SILVERADO 1500 PICKUP

Shop Scanners ↗
🔗

Related Diagnostic Codes

Other codes that may appear with B1817

B1815 Sequential Code

B1815: Audio System Fault

Medium
B1816 Sequential Code

B1816: Airbag System Fault

High
B1818 Sequential Code

B1818: Door Locks Actuator Malfunction

Medium
B1819 Sequential Code

B1819: 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