← View Generic B3627 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B3627: B3627: Power Window Relay Circuit 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 B3627 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The power window relay circuit has malfunctioned, preventing the windows from functioning properly. This code is often accompanied by other related codes.
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Symptoms

  • • Windows do not move
  • • or move intermittently
  • • when the switch is activated.
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Common Causes

  • • Faulty power window relay
  • • faulty window switch
  • • wiring issues
  • • or a blown fuse.
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How to Fix B3627 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the fuse box for a blown fuse. Replace the fuse if necessary. 2. Check the wiring harness for any damage or corrosion. Repair or replace as needed. 3. Test the power window relay with a multimeter. Replace if faulty. 4. Test the window switch with a multimeter. Replace if faulty.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Power window relay Shop ↗ Window switch Shop ↗ Wiring harness Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B3627

B3625 Sequential Code

B3625: Climate Control Temperature Sensor Malfunction

Medium
B3626 Sequential Code

B3626: Door Locks Actuator Malfunction

Medium
B3628 Sequential Code

B3628: Seat Position Sensor Circuit Malfunction

Medium
B3629 Sequential Code

B3629: Exterior Lighting 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