← View Generic P0689 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0689: P0689: Engine Control Module (ECM) Output Circuit 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 P0689 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The Engine Control Module (ECM) output circuit has malfunctioned, preventing the ECM from communicating with other vehicle systems.
⚠️

Symptoms

  • • Check Engine Light
  • • Engine Performance Issues
  • • Stalling
  • • Rough Idling
🔍

Common Causes

  • • Faulty ECM Output Circuit
  • • Damaged Wiring
  • • Corrosion
  • • Loose Connections
🛠️

How to Fix P0689 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and clean the ECM output circuit wiring and connectors. 2. Replace the ECM output circuit if damaged or corroded. 3. Check and repair any loose connections.

🔧

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

ECM output circuit Shop ↗ wiring harness Shop ↗

Essential Tool

Must Have

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Related Diagnostic Codes

Other codes that may appear with P0689

P0687 Sequential Code

P0687: Engine Control Module (ECM) Output Circuit Malfunction

Medium
P0688 Sequential Code

P0688: Engine Control Module (ECM) Output Circuit Malfunction

Medium
P0690 Sequential Code

P0690: Engine Control Module (ECM) Output Circuit Malfunction

Medium
P0691 Sequential Code

P0691: Engine Control Module (ECM) Output 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