← View Generic B1301 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1301: B1301: Body Control Module (BCM) Lighting Circuit Malfunction

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 B1301 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

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

Symptoms

  • • Dim or inoperative exterior lights
  • • faulty turn signal indicators
  • • or erratic lighting behavior
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Common Causes

  • • Faulty BCM
  • • wiring issues
  • • blown fuses
  • • or damaged lighting components
🛠️

How to Fix B1301 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and replace blown fuses. 2. Inspect and repair wiring damage. 3. Update BCM software if necessary. 4. Replace faulty lighting components.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

BCM Shop ↗ fuses Shop ↗ wiring harness Shop ↗ lighting components Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1301

B1299 Sequential Code

B1299: Power Window Relay Circuit Malfunction

Medium
B1300 Sequential Code

B1300: Seat Position Sensor Circuit Malfunction

Medium
B1302 Sequential Code

B1302: Body Control Module (BCM) Security System Malfunction

Medium
B1303 Sequential Code

B1303: Audio System 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