← View Generic B1013 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1013: B1013: Malfunction Indicator Lamp (MIL) Circuit Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $200
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 B1013 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B1013 code indicates a malfunction in the Malfunction Indicator Lamp (MIL) circuit, which is responsible for illuminating the 'check engine' light on the dashboard.
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Symptoms

  • • Check engine light is illuminated
  • • no other symptoms
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Common Causes

  • • Faulty MIL circuit wiring
  • • faulty MIL bulb
  • • faulty body control module
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How to Fix B1013 on 2020 Chevrolet SILVERADO 1500 PICKUP

Check the MIL circuit wiring for any signs of damage or corrosion and repair or replace as needed. Check the MIL bulb and replace it if it's faulty. Check the body control module for any faults and clear any trouble codes.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

MIL bulb Shop ↗ MIL circuit wiring Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B1013

B1011 Sequential Code

B1011: Power Window Circuit Malfunction

Medium
B1012 Sequential Code

B1012: Seat Position Sensor Circuit Malfunction

Medium
B1014 Sequential Code

B1014: Body System Security Malfunction

Medium
B1015 Sequential Code

B1015: 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