← View Generic B1701 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1701: B1701: Body Control Module (BCM) Malfunction - Lighting

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 B1701 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The Body Control Module (BCM) has detected a malfunction in the vehicle's lighting system, which may cause issues with the headlights, taillights, or other exterior lights.
⚠️

Symptoms

  • • Dim or inoperative headlights
  • • taillights
  • • or other exterior lights
  • • or a combination of these symptoms.
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Common Causes

  • • Faulty BCM
  • • wiring harness damage
  • • blown fuse
  • • or a malfunctioning lighting component.
🛠️

How to Fix B1701 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the BCM fuse and replace it if blown. 2. Inspect the wiring harness for damage and repair or replace as needed. 3. Test the lighting components and replace any faulty ones. 4. Update the BCM software if necessary.

🔧

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

BCM fuse Shop ↗ wiring harness Shop ↗ lighting components Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1701

B1699 Sequential Code

B1699: Power Window Relay Circuit Malfunction

Medium
B1700 Sequential Code

B1700: Seat Position Sensor Circuit Malfunction

Medium
B1702 Sequential Code

B1702: Immobilizer System Malfunction

Medium
B1703 Sequential Code

B1703: Audio System Fault

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