Engine-Codes.com
Engine-Codes – Hummer – P1516 Hummer

P1516 Hummer Code - Throttle Actuator Control Module Throttle Actuator Position Performance

Quick Answer

The P1516 diagnostic trouble code (DTC) for Hummer vehicles refers to the Throttle Actuator Control Module Throttle Actuator Position Performance. Common causes include Faulty throttle actuator control module, Wiring or connector issues, Throttle body malfunction. 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 Hummer indicates Throttle Actuator Control Module Throttle Actuator Position Performance.
Common causes
Common causes include Faulty throttle actuator control module, Wiring or connector issues, Throttle body malfunction.
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 08, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1516 Hummer Description

The P1516 diagnostic trouble code (DTC) for Hummer vehicles refers to the Throttle Actuator Control Module Throttle Actuator Position Performance. This code indicates that the throttle actuator control module is detecting a discrepancy between the expected and actual throttle position. The throttle actuator control module is responsible for controlling the throttle body, which regulates the amount of air entering the engine. When this module detects a performance issue with the throttle actuator position, it can lead to a variety of performance problems in the vehicle.

OBDII Code P1516 Hummer - Throttle Actuator Control Module Throttle Actuator Position Performance
P1516 Hummer Code - Throttle Actuator Control Module Throttle Actuator Position Performance

Common Causes of P1516 Hummer

  1. Faulty throttle actuator control module
  2. Wiring or connector issues
  3. Throttle body malfunction
  4. Electronic throttle control system failure
  5. Software or calibration issues

Symptoms of P1516 Hummer

  1. Hesitation or stumbling during acceleration
  2. Engine idle speed fluctuations
  3. Sluggish or unresponsive throttle response
  4. Vehicle going into limp mode
  5. Check Engine Light illuminated on the dashboard

How to Fix P1516 Hummer

  1. Begin by connecting a diagnostic scanner to the vehicle's OBD-II port to retrieve the trouble codes and confirm the presence of P1516.
  2. Inspect the throttle actuator control module, wiring, and connectors for any visible damage or corrosion. Repair or replace as necessary.
  3. Test the throttle body for proper operation and cleanliness. Clean or replace the throttle body if needed.
  4. Check the electronic throttle control system for any faults or malfunctions. Perform any necessary repairs or replacements.
  5. Clear the trouble codes from the vehicle's computer and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1516 Hummer

The typical repair costs for addressing the P1516 code can vary depending on the specific cause of the issue. In general, the cost of parts and labor for this repair can range from $200 to $500. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Factors such as the vehicle make and model, engine type, and location can also impact repair costs, so it's advisable to consult with a trusted mechanic or repair shop for a more precise estimate.

What does this mean?

Tech Notes for P1516 Hummer

There are factory service bulletins for the P1516 code on following HUMMER vehicles:

2006-2007 HUMMER H2
2006-2007 HUMMER H2 SUT
HUMMER H2 Factory Service Bulletin OBDII Code P1516

2006-2012 Hummer H3
HUMMER H3 Factory Service Bulletin OBDII Code P1516

When is the Code Detected?

The Engine Control Module (ECM) has detected an out of range condition between the predicted and actual throttle position.

Need more information about the P1516 Hummer code?

Need more information on how to fix the P1516 Hummer code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1516 Hummer 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 P1516 Hummer Code

1. What are the common symptoms of OBDII code P1516 in a Hummer related to the Throttle Actuator Control Module Throttle Actuator Position Performance?

- Common symptoms include reduced engine power, stalling, rough idling, and the vehicle going into "limp mode."

2. What are the possible causes of OBDII code P1516 in a Hummer indicating an issue with the Throttle Actuator Control Module Throttle Actuator Position Performance?

- Potential causes may include a faulty throttle body, damaged wiring or connectors, a malfunctioning throttle position sensor, or issues with the throttle actuator control module.

3. How can I diagnose the OBDII code P1516 in my Hummer related to the Throttle Actuator Control Module Throttle Actuator Position Performance?

- Diagnosis typically involves scanning the vehicle's computer for trouble codes, checking the throttle body and related components for any visible damage, and testing the throttle position sensor and wiring for proper functionality.

4. Is it safe to drive my Hummer with OBDII code P1516 indicating an issue with the Throttle Actuator Control Module Throttle Actuator Position Performance?

- It is not recommended to drive the vehicle with this code present, as it can lead to performance issues and potentially unsafe driving conditions. It's best to address the problem promptly.

5. What repairs might be needed to fix OBDII code P1516 in a Hummer related to the Throttle Actuator Control Module Throttle Actuator Position Performance?

- Repairs may involve replacing the throttle body, repairing or replacing damaged wiring or connectors, calibrating or replacing the throttle position sensor, or addressing any issues with the throttle actuator control module.

6. Can a DIY enthusiast fix OBDII code P1516 in a Hummer indicating an issue with the Throttle Actuator Control Module Throttle Actuator Position Performance?

- While some aspects of diagnosis and repair may be within reach of a skilled DIYer, addressing this code effectively often requires specialized tools and expertise. It's recommended to consult a professional mechanic.

7. How much does it typically cost to repair OBDII code P1516 in a Hummer related to the Throttle Actuator Control Module Throttle Actuator Position Performance?

- The cost of repairs can vary depending on the exact cause of the issue and the needed repairs. Costs may range from a few hundred dollars to over a thousand, including parts and labor.

8. Will resetting the OBDII system clear the P1516 code related to the Throttle Actuator Control Module Throttle Actuator Position Performance in a Hummer?

- Resetting the system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return. It's important to diagnose and fix the root cause of the problem.

9. How urgent is it to address OBDII code P1516 in a Hummer indicating a problem with the Throttle Actuator Control Module Throttle Actuator Position Performance?

- It is recommended to address this issue promptly to prevent further damage to the vehicle and ensure safe and optimal driving conditions. Ignoring the problem could lead to more severe issues over time.

10. Can a faulty Throttle Actuator Control Module cause other OBDII codes besides P1516 in a Hummer?

- Yes, a malfunctioning Throttle Actuator Control Module can potentially trigger other related codes such as P2101 (Throttle Actuator Position Performance) or P2119 (Throttle Closed Position Performance).

Discuss the causes and fixes for P1516 Hummer OBDII Code

Submit a New Comment