← View Generic B3337 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B3337: B3337: Climate Control Fan Motor Fault

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$150 - $300
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 B3337 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B3337 code indicates a fault in the climate control fan motor, which may cause the fan to malfunction or not function at all.
⚠️

Symptoms

  • • Inconsistent or slow air flow from the vents
  • • unusual noises from the fan
  • • or no air flow at all.
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Common Causes

  • • Faulty fan motor
  • • faulty fan motor resistor
  • • or a wiring issue.
🛠️

How to Fix B3337 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Disconnect the battery to prevent any accidental starts. 2. Locate the fan motor resistor and check for any signs of damage or corrosion. 3. Test the fan motor for continuity using a multimeter. 4. Replace the fan motor resistor if damaged. 5. Replace the fan motor if faulty. 6. Check and repair any wiring issues.

🔧

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Fan motor resistor Shop ↗ Fan motor Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B3337

B3335 Sequential Code

B3335: Audio System Fault

Medium
B3336 Sequential Code

B3336: Airbag System Fault

High
B3338 Sequential Code

B3338: Door Locks Actuator Circuit Malfunction

Medium
B3339 Sequential Code

B3339: Power Window Regulator 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