Engine-Codes.com
Engine-Codes – Chevrolet – P0690 2017 Chevrolet Silverado

P0690 2017 Chevrolet Silverado Code - Electronic Control Module Power Relay Sense Circuit High

Quick Answer

The P0690 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates a problem with the Electronic Control Module (ECM) Power Relay Sense Circuit being too high. Common causes include Faulty Power Relay: A defective power relay supplying power to the ECM can cause voltage irregularities in the sense circuit, Wiring Issues: Damaged or corroded wiring in the power relay sense circuit can disrupt the voltage levels and trigger the P0690 code, ECM Malfunction: A malfunctioning ECM itself can also be a potential cause of the high voltage in the power relay sense circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0690 2017 Chevrolet Silverado indicates Electronic Control Module Power Relay Sense Circuit High.
Common causes
Common causes include Faulty Power Relay: A defective power relay supplying power to the ECM can cause voltage irregularities in the sense circuit, Wiring Issues: Damaged or corroded wiring in the power relay sense circuit can disrupt the voltage levels and trigger the P0690 code, ECM Malfunction: A malfunctioning ECM itself can also be a potential cause of the high voltage in the power relay sense circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 29, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0690 2017 Chevrolet Silverado Description

The P0690 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates a problem with the Electronic Control Module (ECM) Power Relay Sense Circuit being too high. The ECM is a crucial component of the vehicle's engine management system, responsible for controlling various functions such as fuel injection, ignition timing, and emissions. The power relay sense circuit is designed to monitor the voltage level of the power relay that supplies power to the ECM. When the voltage in this circuit is detected to be higher than normal, the P0690 code is triggered.

OBDII Code P0690 2017 Chevrolet Silverado - Electronic Control Module Power Relay Sense Circuit High
P0690 2017 Chevrolet Silverado Code - Electronic Control Module Power Relay Sense Circuit High

Common Causes of P0690 2017 Chevrolet Silverado

  1. Faulty Power Relay: A defective power relay supplying power to the ECM can cause voltage irregularities in the sense circuit.
  2. Wiring Issues: Damaged or corroded wiring in the power relay sense circuit can disrupt the voltage levels and trigger the P0690 code.
  3. ECM Malfunction: A malfunctioning ECM itself can also be a potential cause of the high voltage in the power relay sense circuit.
  4. Poor Electrical Ground: Inadequate grounding of the ECM or related components can lead to voltage spikes and trigger the code.
  5. Water Intrusion: Water or moisture entering the ECM or power relay connections can cause electrical issues and trigger the P0690 code.

Symptoms of P0690 2017 Chevrolet Silverado

  1. Check Engine Light: The most common symptom associated with the P0690 code is the illumination of the Check Engine Light on the dashboard.
  2. Engine Performance Issues: The vehicle may experience rough idling, hesitation, or a lack of power during acceleration.
  3. Poor Fuel Efficiency: A malfunctioning power relay sense circuit can lead to increased fuel consumption and reduced mileage.
  4. Stalling or Failure to Start: In severe cases, the vehicle may stall unexpectedly or have difficulty starting.

How to Fix P0690 2017 Chevrolet Silverado

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble codes and perform a thorough inspection of the power relay sense circuit and related components.
  2. Check Power Relay: Test the power relay supplying power to the ECM to ensure it is functioning correctly. Replace if necessary.
  3. Inspect Wiring: Check the wiring in the power relay sense circuit for any damage, corrosion, or loose connections. Repair or replace as needed.
  4. Test ECM: Perform a comprehensive test of the ECM to determine if it is functioning properly. Replace the ECM if it is found to be faulty.
  5. Clear Codes: After completing the repairs, clear the trouble codes from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0690 2017 Chevrolet Silverado

The typical repair costs for addressing the P0690 code on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of replacing a power relay or repairing wiring issues can range from $100 to $300, including parts and labor. If the ECM needs to be replaced, the cost can be significantly higher, ranging from $500 to $1000 or more. It is advisable to consult with a professional mechanic or dealership to get an accurate estimate based on the specific diagnosis and repair requirements for your vehicle. Keep in mind that labor rates and parts prices can vary based on location, vehicle make and model, and other factors, so it's recommended to inquire locally for a more precise cost estimate.

Need more information about the P0690 2017 Chevrolet Silverado code?

Need more information on how to fix the P0690 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0690 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0690 2017 Chevrolet Silverado Code

1. What does OBDII code P0690 mean for a 2017 Chevrolet Silverado?

The code P0690 indicates a problem with the Electronic Control Module (ECM) Power Relay Sense Circuit being high in a 2017 Chevrolet Silverado.

2. What are the common symptoms of OBDII code P0690 in a 2017 Chevrolet Silverado?

Common symptoms of code P0690 may include engine stalling, poor engine performance, and the illumination of the Check Engine Light.

3. What are the possible causes of OBDII code P0690 in a 2017 Chevrolet Silverado?

Possible causes of code P0690 include a faulty ECM power relay, damaged wiring or connectors in the power relay circuit, or a malfunctioning ECM.

4. How can I diagnose OBDII code P0690 in my 2017 Chevrolet Silverado?

Diagnosing code P0690 may involve checking the ECM power relay, inspecting the wiring and connectors for any damage, and using a diagnostic scanner to retrieve fault codes.

5. Can I still drive my 2017 Chevrolet Silverado with OBDII code P0690?

It is not recommended to drive your vehicle with code P0690 present, as it can lead to engine performance issues and potential stalling, compromising safety.

6. How serious is OBDII code P0690 in a 2017 Chevrolet Silverado?

Code P0690 should be addressed promptly as it can affect the ECM's ability to properly control the engine functions, leading to potential drivability issues.

7. What is the typical cost to repair OBDII code P0690 in a 2017 Chevrolet Silverado?

The cost to repair code P0690 can vary depending on the exact cause, but it may involve replacing the ECM power relay or repairing damaged wiring, which could range from moderate to high expenses.

8. Can I reset OBDII code P0690 in my 2017 Chevrolet Silverado without fixing the underlying issue?

Resetting the code without addressing the root cause will only temporarily clear the Check Engine Light, but the issue will likely reoccur and potentially worsen over time.

9. Are there any DIY repair tips for OBDII code P0690 in a 2017 Chevrolet Silverado?

While some basic troubleshooting like checking fuses and connectors can be done DIY, diagnosing and repairing code P0690 may require professional help due to the complexity of the ECM system.

10. How can I prevent OBDII code P0690 from occurring in my 2017 Chevrolet Silverado?

Regular maintenance checks, including inspecting the ECM power relay and related wiring, can help prevent issues leading to code P0690 in your 2017 Chevrolet Silverado.

Discuss the causes and fixes for P0690 2017 Chevrolet Silverado OBDII Code

Submit a New Comment

Code P0690 2017 Chevrolet Silverado comments

No comments found for this page.