← View Generic B0790 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0790: B0790: Body System Security Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$200 - $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 B0790 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B0790 code indicates a malfunction in the vehicle's body system security module, which is responsible for controlling various functions such as door locks, alarm systems, and immobilizers.
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Symptoms

  • • Alarm system malfunction
  • • door locks not functioning
  • • immobilizer not disarming
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Common Causes

  • • Faulty security module
  • • wiring issues
  • • faulty sensors
  • • software glitches
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How to Fix B0790 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the security module for any signs of physical damage or corrosion. 2. Inspect the wiring harness for any signs of damage or corrosion. 3. Check the sensor connections for any signs of damage or corrosion. 4. Update the vehicle's software to the latest version. 5. If none of the above steps resolve the issue, replace the security module.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Security module Shop ↗ Wiring harness Shop ↗ Sensor Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0790

B0788 Sequential Code

B0788: Seat Position Sensor Circuit Malfunction

Medium
B0789 Sequential Code

B0789: Headlight Dim or Failure

Medium
B0791 Sequential Code

B0791: Audio System Malfunction

Medium
B0792 Sequential Code

B0792: Airbag System Sensor Circuit Malfunction

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