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P0223 2014 Chevrolet Silverado Code - Throttle Position Sensor 2 Circuit High Voltage

Quick Answer

The P0223 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates a problem with the Throttle Position Sensor 2 Circuit High Voltage. Common causes include Faulty TPS: The most common cause of this code is a faulty throttle position sensor, Wiring issues: Damaged or corroded wiring connecting the TPS to the ECM can cause high voltage readings, Connector problems: Loose or damaged connectors can also trigger the P0223 code. 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 2014 Chevrolet Silverado indicates Throttle Position Sensor 2 Circuit High Voltage.
Common causes
Common causes include Faulty TPS: The most common cause of this code is a faulty throttle position sensor, Wiring issues: Damaged or corroded wiring connecting the TPS to the ECM can cause high voltage readings, Connector problems: Loose or damaged connectors can also trigger the P0223 code.
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 10, 2024
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Code P0223 2014 Chevrolet Silverado Description

The P0223 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado 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 throttle control system. It monitors the throttle position and sends this information to the engine control module (ECM) to adjust the air-fuel mixture for optimal engine performance.

OBDII Code P0223 2014 Chevrolet Silverado - Throttle Position Sensor 2 Circuit High Voltage
P0223 2014 Chevrolet Silverado Code - Throttle Position Sensor 2 Circuit High Voltage

Common Causes of P0223 2014 Chevrolet Silverado

  1. Faulty TPS: The most common cause of this code is a faulty throttle position sensor.
  2. Wiring issues: Damaged or corroded wiring connecting the TPS to the ECM can cause high voltage readings.
  3. Connector problems: Loose or damaged connectors can also trigger the P0223 code.
  4. ECM malfunction: In rare cases, a malfunctioning ECM can misinterpret the TPS signal and trigger the code.

Symptoms of P0223 2014 Chevrolet Silverado

  1. Loss of power: The vehicle may experience a noticeable loss of power, especially during acceleration.
  2. Poor fuel economy: A malfunctioning TPS can cause the engine to run inefficiently, leading to decreased fuel economy.
  3. Rough idling: The engine may idle roughly or inconsistently when the TPS is not functioning properly.
  4. Stalling: In severe cases, the vehicle may stall or have difficulty starting.
  5. Check Engine Light: The Check Engine Light will illuminate on the dashboard when the ECM detects the issue.

How to Fix P0223 2014 Chevrolet Silverado

  1. Diagnostic: The first step in resolving this issue is to perform a thorough diagnostic check to confirm the P0223 code and pinpoint the exact cause of the problem.
  2. TPS replacement: If the TPS is found to be faulty, it will need to be replaced with a new one.
  3. Wiring inspection: Check the wiring harness and connectors for any damage or corrosion. Repair or replace as necessary.
  4. ECM reprogramming: In some cases, the ECM may need to be reprogrammed to correct the high voltage readings.
  5. Clear codes: After the repair is completed, clear the codes and reset the ECM to see if the issue has been resolved.

Cost to Fix P0223 2014 Chevrolet Silverado

The cost of repairing a P0223 code on a 2014 Chevrolet Silverado can vary depending on the exact cause of the issue and the labor rates in your area. Typically, replacing a throttle position sensor can cost between $100 and $200, including parts and labor. However, if additional wiring repairs or ECM reprogramming are needed, the cost can increase. It's recommended to get a detailed estimate from a qualified mechanic before proceeding with the repair. Labor rates at auto repair shops can range from $80 to $150 per hour, so the final cost may vary.

What does this mean?

Tech Notes for P0223 2014 Chevrolet Silverado









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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 2014 Chevrolet Silverado Code

1. What does the OBDII code P0223 mean on a 2014 Chevrolet Silverado?

P0223 indicates a high voltage issue in the Throttle Position Sensor (TPS) 2 circuit, suggesting a problem with the sensor or its wiring.

2. What are the common symptoms of P0223 in a 2014 Silverado?

Symptoms may include reduced engine power, poor acceleration, hesitation, unstable idle, or the "Check Engine" light turning on.

3. What causes the P0223 code to appear?

Common causes include a faulty TPS, damaged wiring or connectors, issues with the throttle body, or a problem with the Powertrain Control Module (PCM).

4. Can I drive my 2014 Chevrolet Silverado with a P0223 code?

Driving with this code is not recommended, as it can lead to reduced engine performance and potential safety concerns due to throttle response issues.

5. How do I diagnose the P0223 code on my Silverado?

Use an OBDII scanner to confirm the code, visually inspect the throttle body wiring and connectors, and test the TPS voltage with a multimeter to identify irregularities.

6. How do I fix the P0223 code on a 2014 Silverado?

Repairs may include replacing the TPS, repairing or replacing damaged wiring or connectors, cleaning the throttle body, or reprogramming/updating the PCM if necessary.

7. What is the function of Throttle Position Sensor 2?

TPS 2 monitors the position of the throttle valve and sends voltage signals to the PCM to ensure proper engine performance and response.

8. How much does it cost to repair a P0223 code on a 2014 Silverado?

Repair costs can range from $100 to $400, depending on whether the issue is with the TPS, wiring, or throttle body.

9. Can a dirty throttle body cause the P0223 code?

Yes, a dirty or clogged throttle body can interfere with TPS readings, potentially triggering the P0223 code.

10. Does the P0223 code require reprogramming the PCM?

Reprogramming the PCM is rarely necessary, but it may be required if the issue persists after replacing components or repairing wiring.

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