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Engine-Codes – GMC – P0223 2017 GMC Sierra

P0223 2017 GMC Sierra Code - Throttle Position Sensor 2 Circuit High Voltage

Quick Answer

The P0223 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the Throttle Position Sensor 2 Circuit High Voltage. Common causes include Faulty Throttle Position Sensor 2, Damaged wiring or connectors in the TPS 2 circuit, ECM malfunction. 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
P0223 2017 GMC Sierra indicates Throttle Position Sensor 2 Circuit High Voltage.
Common causes
Common causes include Faulty Throttle Position Sensor 2, Damaged wiring or connectors in the TPS 2 circuit, ECM malfunction.
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 16, 2024
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Code P0223 2017 GMC Sierra Description

The P0223 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the Throttle Position Sensor 2 Circuit High Voltage. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic fuel injection system, responsible for monitoring the position of the throttle valve and sending signals to the engine control module (ECM) to adjust fuel delivery and ignition timing accordingly. In this case, the code specifically points to an issue with the TPS 2 circuit registering a higher voltage than expected.

OBDII Code P0223 2017 GMC Sierra - Throttle Position Sensor 2 Circuit High Voltage
P0223 2017 GMC Sierra Code - Throttle Position Sensor 2 Circuit High Voltage

Common Causes of P0223 2017 GMC Sierra

  1. Faulty Throttle Position Sensor 2
  2. Damaged wiring or connectors in the TPS 2 circuit
  3. ECM malfunction
  4. Corrosion or contamination in the sensor or circuit

Symptoms of P0223 2017 GMC Sierra

  1. Engine hesitation or surging during acceleration
  2. Rough idling or stalling
  3. Reduced fuel efficiency
  4. Check engine light illuminated on the dashboard

How to Fix P0223 2017 GMC Sierra

  1. Begin by conducting a thorough inspection of the TPS 2 sensor, wiring, and connectors for any visible damage or corrosion.
  2. Use a multimeter to test the voltage output of the TPS 2 sensor and compare it to manufacturer specifications.
  3. If the sensor is faulty, replace it with a new, OEM-quality part.
  4. Repair or replace any damaged wiring or connectors in the TPS 2 circuit.
  5. Clear the DTC from the ECM using a scan tool and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0223 2017 GMC Sierra

The typical repair costs for addressing a Throttle Position Sensor 2 Circuit High Voltage issue can vary depending on the extent of the problem and the specific parts needed for replacement. In general, the cost of a new TPS 2 sensor can range from $50 to $150, while labor charges at an auto repair shop may add another $100 to $200 to the total bill. Overall, the total repair cost for this issue could fall within the $150 to $350 range, but it's advisable to check with local repair shops for more accurate pricing based on your location and vehicle specifics. Keep in mind that diagnosis time and labor rates can vary, so it's essential to get multiple quotes before proceeding with the repair.

What does this mean?

Tech Notes for P0223 2017 GMC Sierra









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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 P0223 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P0223 in a 2017 GMC Sierra related to Throttle Position Sensor 2 Circuit High Voltage?

The common symptoms include reduced engine power, hesitation or stalling when accelerating, and the illumination of the Check Engine Light.

2. What are the possible causes of OBDII code P0223 in a 2017 GMC Sierra indicating Throttle Position Sensor 2 Circuit High Voltage?

Potential causes include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or issues with the vehicle's electronic control module (ECM).

3. How can I diagnose the Throttle Position Sensor 2 Circuit High Voltage issue for OBDII code P0223 in my 2017 GMC Sierra?

You can use a diagnostic scan tool to read the code, check for any related trouble codes, and perform a thorough inspection of the throttle position sensor, wiring, and connectors for any visible damage or wear.

4. Can I continue driving my 2017 GMC Sierra with OBDII code P0223 related to Throttle Position Sensor 2 Circuit High Voltage?

It is not recommended to continue driving with this code present, as it can lead to poor engine performance, potential safety hazards, and further damage to the vehicle if left unaddressed.

5. How do I repair OBDII code P0223 in my 2017 GMC Sierra for Throttle Position Sensor 2 Circuit High Voltage?

Repair options may include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, or reprogramming the ECM to resolve the high voltage issue.

6. Is it possible to reset the Check Engine Light after fixing the OBDII code P0223 in a 2017 GMC Sierra?

Yes, you can reset the Check Engine Light using a diagnostic scan tool after addressing the underlying cause of the Throttle Position Sensor 2 Circuit High Voltage issue.

7. Are there any preventive maintenance tips to avoid encountering OBDII code P0223 in a 2017 GMC Sierra?

Regularly inspecting and maintaining the throttle position sensor, wiring, and connectors can help prevent issues that may trigger code P0223 related to Throttle Position Sensor 2 Circuit High Voltage.

8. Can weather conditions or driving habits contribute to triggering OBDII code P0223 in a 2017 GMC Sierra?

Extreme weather conditions, such as excessive heat or moisture, as well as aggressive driving habits, can potentially affect the throttle position sensor and its circuit, leading to the occurrence of code P0223.

9. How long does it typically take to repair OBDII code P0223 in a 2017 GMC Sierra caused by Throttle Position Sensor 2 Circuit High Voltage?

The repair time can vary depending on the exact cause of the issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem, assuming all necessary parts are readily available.

10. Should I attempt to fix OBDII code P0223 related to Throttle Position Sensor 2 Circuit High Voltage in my 2017 GMC Sierra myself, or is it best left to a professional mechanic?

While some DIY enthusiasts may have the skills to address this issue, due to the complexity of modern vehicle systems, it is often recommended to seek assistance from a qualified mechanic to accurately diagnose and repair code P0223 in your GMC Sierra.

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