← View Generic C1806 Guide Severity: High
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

C1806: C1806: Anti-lock Brake System (ABS) Pump Control Module Circuit 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 C1806 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The ABS pump control module circuit has malfunctioned, preventing the ABS system from functioning properly.
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Symptoms

  • • ABS warning light on
  • • ABS system not functioning
  • • vehicle may vibrate or pull to one side during braking
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Common Causes

  • • Faulty ABS pump control module
  • • wiring issues
  • • or a malfunctioning ABS sensor
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How to Fix C1806 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Disconnect the battery to reset the ABS system. 2. Check and repair any wiring issues. 3. Replace the ABS pump control module if faulty.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

ABS pump control module Shop ↗ wiring harness Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with C1806

C1804 Sequential Code

C1804: Traction Control System Malfunction

Medium
C1805 Sequential Code

C1805: Wheel Speed Sensor Malfunction

Medium
C1807 Sequential Code

C1807: Brake System Pressure Sensor Circuit Malfunction

Medium
C1808 Sequential Code

C1808: Rear Suspension Strut 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