← View Generic C1423 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

C1423: C1423: Rear Suspension Control Module (RSCM) Fault

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$500 - $1500
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 C1423 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The C1423 code indicates a fault in the rear suspension control module, which regulates the rear suspension's height and damping. This fault can cause uneven tire wear, reduced ride quality, and potentially affect vehicle stability.
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Symptoms

  • • Uneven tire wear
  • • reduced ride quality
  • • vehicle sagging
  • • difficulty steering
  • • and vibrations while driving
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Common Causes

  • • Faulty rear suspension control module
  • • wiring issues
  • • or sensor malfunctions
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How to Fix C1423 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Clear the code and monitor the vehicle's behavior. If the issue persists, replace the rear suspension control module. 2. Inspect and repair or replace any damaged wiring or sensors. 3. Check and adjust the rear suspension's height and damping settings.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Rear suspension control module Shop ↗ Wiring harness Shop ↗ Sensor Shop ↗

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Related Diagnostic Codes

Other codes that may appear with C1423

C1421 Sequential Code

C1421: ABS System Malfunction

Medium
C1422 Sequential Code

C1422: Brake System Pressure Sensor Circuit Malfunction

Medium
C1424 Sequential Code

C1424: Steering Column Position Sensor Circuit Malfunction

Medium
C1425 Sequential Code

C1425: Electronic Stability Control (ESC) 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