← View Generic B2145 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B2145: B2145: Climate Control Blower Motor Fault

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 B2145 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The climate control system has detected a fault in the blower motor circuit, which may cause issues with airflow and temperature control.
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Symptoms

  • • Inconsistent airflow
  • • uneven heating or cooling
  • • unusual noises from the blower motor
  • • or complete failure of the climate control system.
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Common Causes

  • • Faulty blower motor
  • • faulty blower motor resistor
  • • faulty climate control module
  • • or wiring issues.
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How to Fix B2145 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the blower motor for signs of wear or damage. Replace if necessary. 2. Inspect the blower motor resistor for signs of wear or damage. Replace if necessary. 3. Check the climate control module for signs of wear or damage. Replace if necessary. 4. Inspect the wiring harness for signs of damage or corrosion. Repair or replace as necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

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

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Related Diagnostic Codes

Other codes that may appear with B2145

B2143 Sequential Code

B2143: Audio System Malfunction

Medium
B2144 Sequential Code

B2144: Airbag System Fault

High
B2146 Sequential Code

B2146: Door Locks Actuator Malfunction

Medium
B2147 Sequential Code

B2147: 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