← View Generic B1673 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1673: B1673: Climate Control Fan Motor Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $200
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 B1673 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B1673 code indicates a malfunction in the climate control fan motor, which may cause the fan to stop working or operate erratically.
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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
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How to Fix B1673 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the fan motor for continuity and replace if necessary. 2. Check the fan motor resistor for signs of wear or damage and replace if necessary. 3. Inspect wiring for damage or corrosion and repair if necessary. 4. Check the fuse box for a blown fuse and replace if necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

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

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Related Diagnostic Codes

Other codes that may appear with B1673

B1671 Sequential Code

B1671: Audio System Fault

Medium
B1672 Sequential Code

B1672: Airbag System Fault

High
B1674 Sequential Code

B1674: Door Locks Actuator Circuit Malfunction

Medium
B1675 Sequential Code

B1675: Power Window Regulator 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