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Engine-Codes – GMC – P1516 2014 GMC Sierra

P1516 2014 GMC Sierra Code - Throttle Actuator Control Module Throttle Actuator Position Performance

Quick Answer

The P1516 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Throttle Actuator Control Module and indicates a performance issue with the throttle actuator position. Common causes include Faulty throttle actuator control module, Malfunctioning throttle actuator, Wiring or connector issues. 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
P1516 2014 GMC Sierra indicates Throttle Actuator Control Module Throttle Actuator Position Performance.
Common causes
Common causes include Faulty throttle actuator control module, Malfunctioning throttle actuator, Wiring or connector issues.
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 16, 2024
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Code P1516 2014 GMC Sierra Description

The P1516 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Throttle Actuator Control Module and indicates a performance issue with the throttle actuator position. The throttle actuator control module is responsible for controlling the throttle plate position to regulate the airflow into the engine, which is crucial for proper engine performance and fuel efficiency. When this code is triggered, it means that the engine control module (ECM) has detected a discrepancy between the desired throttle position and the actual position of the throttle actuator.

OBDII Code P1516 2014 GMC Sierra - Throttle Actuator Control Module Throttle Actuator Position Performance
P1516 2014 GMC Sierra Code - Throttle Actuator Control Module Throttle Actuator Position Performance

Common Causes of P1516 2014 GMC Sierra

  1. Faulty throttle actuator control module
  2. Malfunctioning throttle actuator
  3. Wiring or connector issues
  4. Software glitch in the ECM
  5. Mechanical issues with the throttle body

Symptoms of P1516 2014 GMC Sierra

  1. Reduced power or acceleration
  2. Hesitation or stalling during acceleration
  3. Rough idling or uneven engine performance
  4. Decreased fuel efficiency
  5. Check Engine Light illuminated on the dashboard

How to Fix P1516 2014 GMC Sierra

  1. Diagnose the specific cause of the P1516 code using a professional diagnostic scanner.
  2. Inspect the throttle actuator control module, throttle actuator, wiring, and connectors for any visible damage or malfunctions.
  3. Test the throttle actuator control module and throttle actuator according to manufacturer's specifications.
  4. Replace any faulty components, such as the throttle actuator control module or throttle actuator, if necessary.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1516 2014 GMC Sierra

The typical repair costs for addressing a P1516 code on a 2014 GMC Sierra can range from $200 to $600, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. It's recommended to check local rates for a more accurate estimate.

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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.

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