← View Generic C1667 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

C1667: C1667: Brake System Pressure Sensor Circuit Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$150 - $300
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 C1667 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The brake system pressure sensor circuit has malfunctioned, causing the brake system to malfunction or not function properly.
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Symptoms

  • • Brake pedal feels spongy
  • • brake light on dashboard
  • • reduced braking performance
  • • or no braking at all.
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Common Causes

  • • Faulty brake system pressure sensor
  • • wiring issue
  • • or sensor connector problem.
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How to Fix C1667 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Disconnect the battery to reset the system. 2. Check and clean the sensor connector. 3. Replace the brake system pressure sensor if faulty.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Brake system pressure sensor Shop ↗

Essential Tool

Must Have

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Related Diagnostic Codes

Other codes that may appear with C1667

C1665 Sequential Code

C1665: Wheel Speed Sensor Malfunction

Medium
C1666 Sequential Code

C1666: ABS System Malfunction

Medium
C1668 Sequential Code

C1668: Suspension Damper or Mount Fault

Medium
C1669 Sequential Code

C1669: Steering Column Position Sensor Circuit 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