← View Generic C1911 Guide Severity: High
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

C1911: C1911: 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 C1911 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The ABS pump control module has detected a fault in the ABS system, likely due to a malfunctioning sensor or faulty wiring.
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Symptoms

  • • ABS warning light on
  • • ABS system not functioning
  • • possible loss of traction control
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Common Causes

  • • Faulty ABS sensor
  • • wiring issue
  • • pump control module failure
  • • low brake fluid level
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How to Fix C1911 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check brake fluid level and top off if necessary. 2. Inspect and clean or replace faulty ABS sensors. 3. Check and repair or replace wiring as needed. 4. Replace pump control module if faulty.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

ABS sensor Shop ↗ wiring harness Shop ↗ pump control module Shop ↗

Essential Tool

Must Have

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Related Diagnostic Codes

Other codes that may appear with C1911

C1909 Sequential Code

C1909: Traction Control System Malfunction

Medium
C1910 Sequential Code

C1910: Wheel Speed Sensor Malfunction

Medium
C1912 Sequential Code

C1912: Brake System Pressure Sensor Circuit Malfunction

Medium
C1913 Sequential Code

C1913: Left Front Suspension Strut Friction Bushing 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