← View Generic B0934 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0934: B0934: Body System Security 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 B0934 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B0934 code indicates a malfunction in the vehicle's security system, which may cause issues with door locks, alarm systems, or other security-related functions.
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Symptoms

  • • Difficulty locking/unlocking doors
  • • alarm system malfunction
  • • security light on dashboard
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Common Causes

  • • Faulty security module
  • • wiring issue
  • • or faulty door lock actuators
🛠️

How to Fix B0934 on 2020 Chevrolet SILVERADO 1500 PICKUP

Check the security module for any signs of physical damage or corrosion Inspect wiring harness for any signs of damage or wear Test door lock actuators for proper function Replace faulty security module or wiring harness as needed Update vehicle's software to latest version

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Security module Shop ↗ Wiring harness Shop ↗ Door lock actuators Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B0934

B0932 Sequential Code

B0932: Seat Position Sensor Circuit Malfunction

Medium
B0933 Sequential Code

B0933: Turn Signal Lamp Malfunction

Medium
B0935 Sequential Code

B0935: Audio System Malfunction

Medium
B0936 Sequential Code

B0936: Airbag System Fault

High

💡 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