AutoCodes – Chevrolet – P0122 2015 Chevrolet Silverado

P0122 2015 Chevrolet Silverado Code - Throttle Position Sensor 1 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: P0122 2015 Chevrolet Silverado indicates Throttle Position Sensor 1 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 563

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P0122 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 1 signal voltage is less than 0.32 V for greater than 1 s.

OBDII Code P0122 2015 Chevrolet Silverado - Throttle Position Sensor 1 Circuit Low Voltage - AutoCodes.com — P0122 2015 Chevrolet Silverado Code - Throttle Position Sensor 1 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0122 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 P0122 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 P0122 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 P0122 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0122 in a 2015 Chevrolet Silverado?

The common symptoms of OBDII code P0122 in a 2015 Chevrolet Silverado include poor acceleration, lack of power, stalling, and the vehicle going into "limp mode."

2. What does the OBDII code P0122 indicate in a 2015 Chevrolet Silverado?

OBDII code P0122 in a 2015 Chevrolet Silverado indicates an issue with the Throttle Position Sensor 1 Circuit registering low voltage, often leading to improper engine performance.

3. What are the possible causes of OBDII code P0122 in a 2015 Chevrolet Silverado?

Possible causes of OBDII code P0122 in a 2015 Chevrolet Silverado include a faulty throttle position sensor, damaged wiring or connectors, a corroded sensor, or issues with the vehicle's ECM.

4. How can I diagnose the OBDII code P0122 in my 2015 Chevrolet Silverado?

To diagnose OBDII code P0122 in a 2015 Chevrolet Silverado, you can use an OBDII scanner to retrieve the code, visually inspect the throttle position sensor and its wiring, and perform voltage tests on the sensor.

5. Can I drive my 2015 Chevrolet Silverado with OBDII code P0122?

It is not recommended to drive your 2015 Chevrolet Silverado with OBDII code P0122 as it can lead to poor engine performance and potential safety hazards. It's best to address the issue promptly.

6. How do I repair OBDII code P0122 in my 2015 Chevrolet Silverado?

To repair OBDII code P0122 in a 2015 Chevrolet Silverado, you may need to replace the throttle position sensor, repair damaged wiring or connectors, clean or replace a corroded sensor, or reset the ECM.

7. Can a DIY enthusiast fix OBDII code P0122 in a 2015 Chevrolet Silverado?

Depending on your skill level, a DIY enthusiast may be able to fix OBDII code P0122 in a 2015 Chevrolet Silverado by following proper diagnostic procedures and replacing the throttle position sensor or addressing wiring issues.

8. How much does it cost to fix OBDII code P0122 in a 2015 Chevrolet Silverado?

The cost to fix OBDII code P0122 in a 2015 Chevrolet Silverado can vary depending on the root cause of the issue. Costs may include parts like a new throttle position sensor or wiring repairs, as well as labor fees if done by a mechanic.

9. Will OBDII code P0122 in a 2015 Chevrolet Silverado cause permanent damage if not addressed?

Ignoring OBDII code P0122 in a 2015 Chevrolet Silverado can potentially lead to further damage to the engine or related components over time. It's best to address the issue promptly to prevent any long-term damage.

10. How long does it take to fix OBDII code P0122 in a 2015 Chevrolet Silverado?

The time it takes to fix OBDII code P0122 in a 2015 Chevrolet Silverado can vary depending on the exact cause of the issue and the repair process involved. Simple fixes like replacing a sensor may take a few hours, while more complex issues could take longer.