AutoCodes – GMC – P0222 GMC

P0222 GMC Code - Throttle Position Sensor 2 Circuit Low 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: P0222 GMC indicates Throttle Position Sensor 2 Circuit Low 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 2,218

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 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 P0222 GMC 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 less than 0.25 V for greater than 1 s.

OBDII Code P0222 GMC - Throttle Position Sensor 2 Circuit Low Voltage - AutoCodes.com — P0222 GMC Code - Throttle Position Sensor 2 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0222 GMC?

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 P0222 GMC?

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 P0222 GMC 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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Information for Specific GMC Models

P0222 2014 GMC Sierra — Throttle Position Sensor 2 Circuit Low Voltage
P0222 2015 GMC Sierra — Throttle Position Sensor 2 Circuit Low Voltage
P0222 2016 GMC Sierra — Throttle Position Sensor 2 Circuit Low Voltage
P0222 2017 GMC Sierra — Throttle Position Sensor 2 Circuit Low Voltage
P0222 2018 GMC Sierra — Throttle Position Sensor 2 Circuit Low 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 P0222 GMC Code

1. What are the common symptoms of OBDII code P0222 in a GMC related to the Throttle Position Sensor 2 Circuit Low Voltage?

- Common symptoms include poor acceleration, rough idling, stalling, and a decrease in fuel efficiency.

2. What can cause the Throttle Position Sensor 2 Circuit Low Voltage error code P0222 in a GMC vehicle?

- Possible causes include a faulty throttle position sensor, damaged wiring or connectors, low voltage in the sensor circuit, or a problem with the vehicle's engine control module.

3. How can I diagnose the Throttle Position Sensor 2 Circuit Low Voltage issue (P0222) in my GMC?

- You can use an OBDII scanner to read the error code and check the throttle position sensor's voltage using a multimeter. Inspecting the sensor and its connections for any signs of damage is also recommended.

4. Are there any quick fixes for the P0222 code related to the Throttle Position Sensor 2 Circuit Low Voltage in a GMC?

- In some cases, simply cleaning the throttle body and sensor connectors, or resetting the error code with a scanner, may temporarily resolve the issue. However, a long-term solution may require replacing the faulty components.

5. Can driving with the OBDII code P0222 (Throttle Position Sensor 2 Circuit Low Voltage) in a GMC cause further damage?

- Continuing to drive with this code may lead to poor engine performance, decreased fuel efficiency, and potential damage to other engine components over time. It is advisable to address the issue promptly.

6. Is it safe to drive my GMC with the Throttle Position Sensor 2 Circuit Low Voltage error code P0222?

- While it may be safe to drive short distances with this error code, prolonged driving can negatively impact the vehicle's performance and fuel economy. It is recommended to address the issue as soon as possible.

7. How much does it typically cost to repair the Throttle Position Sensor 2 Circuit Low Voltage issue causing OBDII code P0222 in a GMC?

- The cost of repair can vary depending on the extent of the issue and whether you DIY or seek professional help. Replacement of the throttle position sensor or related components may range from $100 to $300 or more.

8. Can a Throttle Position Sensor 2 Circuit Low Voltage error code P0222 be triggered by issues other than a faulty sensor?

- Yes, this error code can also be caused by wiring problems, connector issues, low voltage in the circuit, or a malfunctioning engine control module, so it is essential to conduct a thorough diagnosis.

9. Will resetting the OBDII code P0222 related to the Throttle Position Sensor 2 Circuit Low Voltage in my GMC make it go away permanently?

- Resetting the code may temporarily clear the error, but if the underlying issue such as a faulty sensor or wiring problem is not addressed, the code is likely to reappear.

10. How critical is the Throttle Position Sensor 2 Circuit Low Voltage error code P0222 for the overall performance of a GMC vehicle?

- The throttle position sensor plays a crucial role in the engine's performance, so addressing the P0222 code promptly is important to ensure optimal engine operation, fuel efficiency, and overall driving experience.