AutoCodes – Chevrolet – P0223 2015 Chevrolet Silverado

P0223 2015 Chevrolet Silverado Code - Throttle Position Sensor 2 Circuit High Voltage

Quick Answer

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly circuit poor electrical connection. 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 2015 Chevrolet Silverado indicates Throttle Position Sensor 2 Circuit High Voltage.
Common causes: Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly circuit poor electrical connection.
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.

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Code Popularity 436

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 20, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P0223 2015 Chevrolet Silverado Description

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. The throttle position sensor is mounted within the throttle body assembly and is not serviceable. The Engine Control Module (ECM) supplies the throttle body with a 5 V reference circuit, a low reference circuit. The asynchronous signal means communication is only going from the throttle body to the ECM. The throttle body cannot receive data from the ECM over the signal/serial data circuit. The throttle position sensor provides a signal voltage that changes relative to throttle blade angle. The throttle position sensor information is transmitted between the throttle body and the ECM on the signal/serial data circuit. The ECM decodes the serial data signal and is used as voltages for throttle position sensor 1 and 2. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the throttle position sensor 2 signal voltage is greater than 4.6 V for greater than 1 s.

OBDII Code P0223 2015 Chevrolet Silverado - Throttle Position Sensor 2 Circuit High Voltage - AutoCodes.com — P0223 2015 Chevrolet Silverado Code - Throttle Position Sensor 2 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0223 2015 Chevrolet Silverado?

Faulty Throttle Body Assembly
Throttle Body Assembly harness is open or shorted
Throttle Body Assembly circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0223 2015 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0223 2015 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 2015 Chevrolet Silverado Code

1. What does the OBDII code P0223 mean on a 2015 Chevrolet Silverado?

P0223 indicates a "Throttle Position Sensor 2 Circuit High Voltage," meaning the Engine Control Module (ECM) has detected an abnormally high voltage signal from Throttle Position Sensor 2.

2. What are the symptoms of code P0223 on a 2015 Chevrolet Silverado?

Common symptoms include poor acceleration, reduced engine power mode (limp mode), erratic throttle response, engine stalling, and the check engine light illuminating.

3. What causes code P0223 on a 2015 Chevrolet Silverado?

Potential causes include a faulty throttle position sensor, damaged wiring or connectors, corrosion in the circuit, or a malfunctioning ECM.

4. Can I drive my 2015 Chevrolet Silverado with code P0223?

Driving with P0223 is not recommended, as it may result in reduced engine performance or safety risks due to unpredictable throttle behavior.

5. How do you diagnose code P0223 on a 2015 Chevrolet Silverado?

A mechanic typically uses a scan tool to monitor throttle position sensor voltage, inspects the wiring and connectors for damage or corrosion, and tests the sensor for functionality.

6. How do you fix code P0223 on a 2015 Chevrolet Silverado?

Repairs may include replacing the throttle position sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming or replacing the ECM if necessary.

7. How much does it cost to fix code P0223 on a 2015 Chevrolet Silverado?

The cost depends on the issue but typically ranges from $150 to $400, including parts and labor, for sensor replacement or wiring repairs.

8. Can a dirty throttle body cause code P0223?

While unlikely, a dirty throttle body can sometimes interfere with sensor readings. Cleaning the throttle body may help if buildup is disrupting sensor operation.

9. Does the P0223 code mean the throttle position sensor is definitely bad?

Not necessarily. The issue could also stem from wiring problems, connector corrosion, or ECM malfunctions. Proper diagnosis is essential before replacing parts.

10. How can I prevent code P0223 from recurring on my 2015 Chevrolet Silverado?

Regularly inspect and maintain the throttle body, sensors, and wiring connections. Address any early signs of corrosion or wear to avoid circuit voltage issues.