AutoCodes – GMC – P1516 2015 GMC Sierra

P1516 2015 GMC Sierra Code - Throttle Actuator Control Module Throttle Actuator Position Performance

Quick Answer

The Engine Control Module (ECM) determines the driver's intent based on input from the accelerator pedal position sensors, then calculates the appropriate throttle response based on the throttle position sensors. Common causes include Binding or bent Throttle Plate, Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted. 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 2015 GMC Sierra indicates Throttle Actuator Control Module Throttle Actuator Position Performance.
Common causes: Common causes include Binding or bent Throttle Plate, Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted.
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 283

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 Aug 13, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1516 2015 GMC Sierra Description

The Engine Control Module (ECM) determines the driver's intent based on input from the accelerator pedal position sensors, then calculates the appropriate throttle response based on the throttle position sensors. The ECM controls the throttle valve by applying a varying voltage to the control circuits of the Throttle Actuator Control (TAC) motor. The ECM monitors the duty cycle that is required to actuate the throttle valve. The ECM monitors the TP sensor signal/serial data circuit to determine the actual throttle valve position. The TP sensor information is transmitted between the throttle body and the ECM on the signal/serial data circuit. The Diagnostic Trouble Code (DTC) will be set when the ECM detects an unstable throttle position for greater than 1 s.

OBDII Code P1516 2015 GMC Sierra - Throttle Actuator Control Module Throttle Actuator Position Performance - AutoCodes.com — P1516 2015 GMC Sierra Code - Throttle Actuator Control Module Throttle Actuator Position Performance

What does this mean?

What are the Possible Causes of the DTC P1516 2015 GMC Sierra?

Binding or bent Throttle Plate
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 P1516 2015 GMC Sierra?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1516 2015 GMC Sierra 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 P1516 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code P1516 in a 2015 GMC Sierra?

When the Throttle Actuator Control Module Throttle Actuator Position Performance code (P1516) is triggered, common symptoms may include reduced engine power, rough idling, stalling, and the Check Engine light illuminating on the dashboard.

2. What are the possible causes of OBDII code P1516 in a 2015 GMC Sierra?

Common causes of code P1516 in a 2015 GMC Sierra include a faulty throttle body, issues with the throttle position sensor, wiring problems, or a malfunctioning throttle actuator control module.

3. How can I diagnose OBDII code P1516 in my 2015 GMC Sierra?

To diagnose code P1516, it is recommended to use an OBDII scanner to read the code and then inspect the throttle actuator control module, throttle body, and related wiring for any visible damage or issues.

4. Can I still drive my 2015 GMC Sierra with OBDII code P1516?

It is not advisable to drive your GMC Sierra with code P1516 as the vehicle may experience performance issues and potential safety risks. It is recommended to address the underlying problem before driving the vehicle.

5. How can I repair OBDII code P1516 in my 2015 GMC Sierra?

Repairing OBDII code P1516 typically involves replacing the throttle body, repairing any damaged wiring, or replacing the throttle actuator control module if necessary. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

6. Is it safe to reset the OBDII code P1516 in my 2015 GMC Sierra?

While resetting the code may temporarily turn off the Check Engine light, it does not address the underlying issue causing code P1516. It is best to diagnose and repair the problem to ensure the vehicle operates safely and efficiently.

7. Can a dirty throttle body trigger OBDII code P1516 in a 2015 GMC Sierra?

Yes, a dirty throttle body can disrupt the proper functioning of the throttle actuator control module and trigger code P1516 in a 2015 GMC Sierra. Regular maintenance and cleaning of the throttle body can help prevent this issue.

8. How much does it cost to repair OBDII code P1516 in a 2015 GMC Sierra?

The cost of repairing OBDII code P1516 in a 2015 GMC Sierra can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It is advisable to obtain quotes from different mechanics or dealerships for accurate pricing.

9. Can a DIY enthusiast repair OBDII code P1516 in a 2015 GMC Sierra?

While some aspects of diagnosing and repairing code P1516 may be tackled by a knowledgeable DIY enthusiast, it is recommended to seek professional help for accurate diagnosis and repair to ensure the issue is resolved correctly.

10. How often does OBDII code P1516 occur in a 2015 GMC Sierra?

The occurrence of OBDII code P1516 in a 2015 GMC Sierra can vary depending on factors such as vehicle usage, maintenance practices, and driving conditions. If the code is triggered, it should be addressed promptly to prevent further issues.