AutoCodes – GMC – P2101 2017 GMC Sierra

P2101 2017 GMC Sierra Code - 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: P2101 2017 GMC Sierra indicates 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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 703

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2101 2017 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 the actual throttle position does not match the predicted throttle position for greater than 1 s.

OBDII Code P2101 2017 GMC Sierra - Throttle Actuator Position Performance - AutoCodes.com — P2101 2017 GMC Sierra Code - Throttle Actuator Position Performance

What does this mean?

What are the Possible Causes of the DTC P2101 2017 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 P2101 2017 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 P2101 2017 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.

Need more information about the P2101 2017 GMC Sierra code?

Need more information on how to fix the P2101 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2101 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 P2101 2017 GMC Sierra Code

1. What are common symptoms of OBDII code P2101 on a 2017 GMC Sierra related to the throttle actuator position performance?

- Common symptoms include engine stalling, rough idle, lack of power, and the vehicle going into limp mode.

2. What are the possible causes of OBDII code P2101 on a 2017 GMC Sierra?

- Possible causes include a faulty throttle actuator, wiring issues, a dirty throttle body, or a problem with the throttle position sensor.

3. How can I diagnose the issue causing OBDII code P2101 on my 2017 GMC Sierra related to throttle actuator position performance?

- Diagnosis involves checking the throttle actuator for proper operation, inspecting the wiring for any damage, and cleaning the throttle body to ensure it is not sticking.

4. Can I continue to drive my 2017 GMC Sierra with OBDII code P2101 present?

- It is not recommended to drive the vehicle with code P2101 as it can lead to further damage and potentially unsafe driving conditions.

5. How can I repair OBDII code P2101 on my 2017 GMC Sierra related to throttle actuator position performance?

- Repairing code P2101 may involve replacing the throttle actuator, repairing any damaged wiring, cleaning the throttle body, or recalibrating the throttle position sensor.

6. Are there any DIY tips for addressing OBDII code P2101 on a 2017 GMC Sierra?

- DIY tips include checking for loose or damaged wiring, cleaning the throttle body with throttle body cleaner, and ensuring all connections are secure.

7. Will resetting the OBDII code P2101 on my 2017 GMC Sierra make the issue go away?

- Resetting the code may temporarily clear the warning light, but it is important to diagnose and address the underlying issue to prevent it from recurring.

8. How long does it typically take to repair OBDII code P2101 on a 2017 GMC Sierra?

- The repair time can vary depending on the exact cause of the code, but it may take anywhere from a few hours to a full day to complete the necessary repairs.

9. Can extreme weather conditions affect the occurrence of OBDII code P2101 on a 2017 GMC Sierra?

- Yes, extreme temperatures or humidity can sometimes exacerbate issues with the throttle actuator, leading to the triggering of code P2101.

10. Is it necessary to take my 2017 GMC Sierra to a dealership for repairs related to OBDII code P2101?

- While a dealership may have specialized tools and knowledge, a trusted mechanic with experience in handling throttle actuator issues should also be able to effectively diagnose and repair code P2101 on your GMC Sierra.