← View Generic C1345 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

C1345: C1345: Brake System Pressure Sensor 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 C1345 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The brake system pressure sensor circuit has malfunctioned, causing the brake system to malfunction. This can cause the brake pedal to feel spongy or soft.
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Symptoms

  • • Spongy brake pedal
  • • soft brake pedal
  • • brake pedal may feel like it's sinking
  • • brake pedal may feel like it's not responding
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Common Causes

  • • Faulty brake system pressure sensor
  • • faulty wiring harness
  • • faulty brake master cylinder
  • • air in the brake system
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How to Fix C1345 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the brake system pressure sensor for any signs of damage or corrosion. Replace if necessary. 2. Check the wiring harness for any signs of damage or corrosion. Repair or replace if necessary. 3. Bleed the brake system to remove any air that may be present. 4. Check the brake master cylinder for any signs of damage or corrosion. Replace if necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Brake system pressure sensor Shop ↗ Wiring harness Shop ↗ Brake master cylinder Shop ↗

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Related Diagnostic Codes

Other codes that may appear with C1345

C1343 Sequential Code

C1343: Wheel Speed Sensor Malfunction

Medium
C1344 Sequential Code

C1344: ABS System Malfunction

Medium
C1346 Sequential Code

C1346: Rear Suspension Strut or Shock Absorber Fault

Medium
C1347 Sequential Code

C1347: 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