← View Generic C0798 Guide Severity: High
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

C0798: C0798: Anti-lock Brake System (ABS) Pump Control Module (PCM) Fault

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$200 - $800
Parts & Labor
Difficulty
4/5
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 C0798 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The ABS system has detected a fault in the pump control module, which may be due to a faulty sensor, wiring issue, or module failure.
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Symptoms

  • • ABS warning light on
  • • ABS system malfunction
  • • vehicle may vibrate or pull to one side during braking
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Common Causes

  • • Faulty ABS sensor
  • • wiring issue
  • • pump control module failure
  • • faulty wheel speed sensor
🛠️

How to Fix C0798 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check for any loose connections or damaged wiring. 2. Test the ABS sensors and wheel speed sensors. 3. Replace the faulty sensor or module if necessary. 4. Bleed the ABS system if air is present.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

ABS sensor Shop ↗ wheel speed sensor Shop ↗ pump control module Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with C0798

C0796 Sequential Code

C0796: Traction Control System Malfunction

Medium
C0797 Sequential Code

C0797: Wheel Speed Sensor Malfunction

Medium
C0799 Sequential Code

C0799: Brake System Pressure Sensor Circuit Malfunction

Medium
C0800 Sequential Code

C0800: Suspension Damper or Shock Absorber Fault

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