← View Generic C1140 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

C1140: C1140: Wheel Speed Sensor Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $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 C1140 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The wheel speed sensor malfunction code C1140 indicates a problem with the wheel speed sensor circuit, which monitors the speed of the vehicle's wheels and sends the data to the vehicle's computer.
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Symptoms

  • • ABS light on
  • • vehicle may vibrate or pull to one side
  • • reduced traction control system performance
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Common Causes

  • • Faulty wheel speed sensor
  • • faulty wheel speed sensor circuit
  • • loose or corroded sensor connections
  • • wheel speed sensor magnet or sensor ring damage
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How to Fix C1140 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and clean the wheel speed sensor connections, 2. Replace the wheel speed sensor if faulty, 3. Check and adjust the wheel speed sensor magnet or sensor ring if damaged, 4. Check and repair any loose or corroded connections

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Wheel speed sensor Shop ↗ Sensor connector Shop ↗

Essential Tool

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Related Diagnostic Codes

Other codes that may appear with C1140

C1138 Sequential Code

C1138: Electronic Stability Control (ESC) Malfunction

Medium
C1139 Sequential Code

C1139: Traction Control System Malfunction

Medium
C1141 Sequential Code

C1141: ABS System Malfunction

Medium
C1142 Sequential Code

C1142: Brake System Pressure 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