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P0122 2015 Chevrolet Silverado Code - Throttle Position Sensor 1 Circuit Low Voltage

Quick Answer

The P0122 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates a problem with the Throttle Position Sensor 1 Circuit, specifically low voltage. Common causes include Faulty Throttle Position Sensor, Damaged wiring or connectors in the TPS circuit, Dirty throttle body. 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 Position Sensor, Damaged wiring or connectors in the TPS circuit, Dirty throttle body.
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 15, 2024
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Code P0122 2015 Chevrolet Silverado Description

The P0122 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates a problem with the Throttle Position Sensor 1 Circuit, specifically low voltage. The Throttle Position Sensor (TPS) is a crucial component of the vehicle's electronic fuel injection system, as it monitors the position of the throttle valve and sends this information to the engine control module (ECM). The ECM uses this data to determine the appropriate air-fuel mixture for combustion, as well as to adjust the vehicle's performance based on driver input.

OBDII Code P0122 2015 Chevrolet Silverado - Throttle Position Sensor 1 Circuit Low Voltage
P0122 2015 Chevrolet Silverado Code - Throttle Position Sensor 1 Circuit Low Voltage

Common Causes of P0122 2015 Chevrolet Silverado

  1. Faulty Throttle Position Sensor
  2. Damaged wiring or connectors in the TPS circuit
  3. Dirty throttle body
  4. Issues with the Engine Control Module (ECM)
  5. Electrical interference or short circuits

Symptoms of P0122 2015 Chevrolet Silverado

  1. Rough idling or stalling
  2. Hesitation or lack of response when accelerating
  3. Poor fuel economy
  4. Check Engine Light illuminated
  5. Limp mode activation

How to Fix P0122 2015 Chevrolet Silverado

  1. Begin by conducting a thorough inspection of the TPS and its wiring to check for any visible damage or wear.
  2. Test the TPS using a multimeter to ensure it is sending the correct voltage signals to the ECM.
  3. Clean the throttle body to remove any carbon buildup or debris that may be affecting sensor readings.
  4. If the TPS is found to be faulty, replace it with a new sensor following manufacturer guidelines.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0122 2015 Chevrolet Silverado

The typical repair costs for addressing a P0122 code on a 2015 Chevrolet Silverado can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary significantly, so it's advisable to obtain quotes from multiple sources before proceeding with the repair. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops may offer more competitive pricing.

What does this mean?

Tech Notes for P0122 2015 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 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.

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