← View Generic B1873 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1873: B1873: Climate Control Blower Motor Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $500
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 B1873 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B1873 code indicates a malfunction in the climate control blower motor, which may cause issues with airflow and temperature regulation.
⚠️

Symptoms

  • • Inconsistent airflow
  • • uneven heating or cooling
  • • unusual noises from the blower motor
  • • or a complete loss of climate control function.
🔍

Common Causes

  • • Faulty blower motor
  • • clogged air ducts
  • • faulty climate control module
  • • or a wiring issue.
🛠️

How to Fix B1873 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and clean the air ducts. 2. Inspect and replace the blower motor if necessary. 3. Test the climate control module and replace if faulty. 4. Check and repair any wiring issues.

🔧

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

Blower motor Shop ↗ Climate control module Shop ↗ Wiring harness 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 B1873

B1871 Sequential Code

B1871: Audio System Fault

Medium
B1872 Sequential Code

B1872: Airbag System Fault

High
B1874 Sequential Code

B1874: Door Locks Malfunction

Medium
B1875 Sequential Code

B1875: 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