AutoCodes – Chevrolet – P0223 Chevrolet

P0223 Chevrolet 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 Chevrolet 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 14,459

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

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

What does this mean?

What are the Possible Causes of the DTC P0223 Chevrolet?

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 Chevrolet?

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 Chevrolet 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.

Need more information about the P0223 Chevrolet code?

Need more information on how to fix the P0223 Chevrolet code? Get Access to Factory Service Manuals

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Information for Specific Chevrolet Models

P0223 2014 Chevrolet Silverado — Throttle Position Sensor 2 Circuit High Voltage
P0223 2015 Chevrolet Silverado — Throttle Position Sensor 2 Circuit High Voltage
P0223 2016 Chevrolet Silverado — Throttle Position Sensor 2 Circuit High Voltage
P0223 2017 Chevrolet Silverado — Throttle Position Sensor 2 Circuit High Voltage
P0223 2018 Chevrolet Silverado — Throttle Position Sensor 2 Circuit High Voltage

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 Chevrolet Code

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

- Common symptoms include rough idling, poor acceleration, engine hesitation, and in some cases, the vehicle may go into limp mode.

2. What are the possible causes of the OBDII code P0223 in a Chevrolet indicating a high voltage issue with the Throttle Position Sensor 2 Circuit?

- The code P0223 can be triggered by a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

3. How can I diagnose the OBDII code P0223 in a Chevrolet related to the Throttle Position Sensor 2 Circuit High Voltage?

- To diagnose P0223, you can use a scan tool to check for the code and then test the throttle position sensor's voltage output with a multimeter while operating the throttle.

4. What are the recommended repair tips for addressing OBDII code P0223 in a Chevrolet caused by a high voltage issue in the Throttle Position Sensor 2 Circuit?

- Repair tips include inspecting the throttle position sensor for any visible damage, testing the sensor's voltage output, checking the wiring and connectors for faults, and replacing the sensor if necessary.

5. Can driving with the OBDII code P0223 present in a Chevrolet affect vehicle performance or cause further damage?

- Driving with code P0223 may result in reduced fuel efficiency, poor engine performance, and potential damage to other engine components if the issue is not addressed promptly.

6. How much does it typically cost to repair OBDII code P0223 in a Chevrolet related to the Throttle Position Sensor 2 Circuit High Voltage?

- The cost of repairing P0223 can vary depending on the root cause of the issue. Sensor replacement costs can range from $50 to $200, while labor costs may add another $50 to $100.

7. Are there any preventative measures to avoid triggering the OBDII code P0223 in a Chevrolet due to high voltage in the Throttle Position Sensor 2 Circuit?

- Regularly inspecting and maintaining the throttle position sensor, ensuring proper wiring connections, and addressing any engine performance issues promptly can help prevent code P0223 from occurring.

8. What are the differences between Throttle Position Sensor 1 and Throttle Position Sensor 2 in a Chevrolet, and how do they contribute to OBDII code P0223 being triggered?

- Throttle Position Sensor 1 and Throttle Position Sensor 2 provide redundant data to the engine control module. If there is a discrepancy between the two sensors, it can lead to code P0223 being triggered.

9. Can a DIY enthusiast with basic automotive knowledge repair OBDII code P0223 in a Chevrolet related to the Throttle Position Sensor 2 Circuit High Voltage?

- Yes, a DIY enthusiast with basic knowledge can attempt to repair P0223 by following repair guides, using the necessary tools, and being cautious when working on the throttle position sensor and its circuit.

10. How urgent is it to address the OBDII code P0223 in a Chevrolet indicating a high voltage issue with the Throttle Position Sensor 2 Circuit?

- It is recommended to address code P0223 promptly to prevent further engine performance issues and potential damage. Driving with this code present for an extended period is not advisable.