Engine-Codes.com
Engine-Codes – Hummer – U0107 Hummer

U0107 Hummer Code - Lost Communication With Throttle Actuator Control Module

Quick Answer

The U0107 diagnostic trouble code (DTC) for Hummer vehicles indicates that there has been a loss of communication with the Throttle Actuator Control Module (TAC). Common causes include Faulty Throttle Actuator Control Module, Wiring or connection issues, Malfunctioning Engine Control Module. 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
U0107 Hummer indicates Lost Communication With Throttle Actuator Control Module.
Common causes
Common causes include Faulty Throttle Actuator Control Module, Wiring or connection issues, Malfunctioning Engine Control Module.
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 12, 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 U0107 Hummer Description

The U0107 diagnostic trouble code (DTC) for Hummer vehicles indicates that there has been a loss of communication with the Throttle Actuator Control Module (TAC). The TAC is a crucial component of the vehicle's electronic throttle control system, responsible for regulating the engine's throttle opening based on driver input. When communication with the TAC is lost, it can lead to a variety of performance issues and potentially unsafe driving conditions.

OBDII Code U0107 Hummer - Lost Communication With Throttle Actuator Control Module
U0107 Hummer Code - Lost Communication With Throttle Actuator Control Module

Common Causes of U0107 Hummer

  1. Faulty Throttle Actuator Control Module
  2. Wiring or connection issues
  3. Malfunctioning Engine Control Module
  4. Software glitches or programming errors
  5. Electrical interference or communication bus problems

Symptoms of U0107 Hummer

  1. Reduced engine power
  2. Unresponsive throttle pedal
  3. Engine stalling or rough idling
  4. Check Engine Light illuminated
  5. Difficulty accelerating or maintaining speed

How to Fix U0107 Hummer

  1. Perform a thorough diagnostic scan to retrieve the U0107 code and any related codes.
  2. Inspect the wiring harness and connections for any signs of damage or corrosion.
  3. Test the Throttle Actuator Control Module and Engine Control Module for proper functionality.
  4. Clear the code and reset the system to see if the communication is restored.
  5. If necessary, replace the faulty TAC module, repair wiring issues, or reprogram the ECM to address the communication problem.

Cost to Fix U0107 Hummer

The typical repair costs for addressing a U0107 code can range from $200 to $600, including parts and labor. However, the 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 commonly charge between $80 and $150 per hour for labor. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate.

What does this mean?

Tech Notes for U0107 Hummer

There is a factory service bulletin for the U0107 code on following Cadillac vehicles:



2006-2007 HUMMER H2

2006-2007 HUMMER H2 SUT

HUMMER H2 Factory Service Bulletin OBDII Code U0107

Need more information about the U0107 Hummer code?

Need more information on how to fix the U0107 Hummer code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0107 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 U0107 Hummer Code

1. What does the OBDII code U0107 for a Hummer mean?

The U0107 code indicates that there is a communication problem between the vehicle's engine control module (ECM) and the throttle actuator control module.

2. What are the common symptoms of a U0107 code in a Hummer?

Common symptoms include engine stalling, loss of power, rough idle, and difficulty accelerating.

3. What are the possible causes of a U0107 code in a Hummer?

Possible causes include a faulty throttle actuator control module, damaged wiring or connectors, a malfunctioning ECM, or a problem with the CAN bus communication system.

4. How can I diagnose a U0107 code in my Hummer?

Diagnosis involves using a diagnostic scan tool to retrieve the trouble codes, checking the wiring and connectors for damage, and testing the throttle actuator control module for proper operation.

5. Can I still drive my Hummer with a U0107 code present?

It is not recommended to drive your Hummer with a U0107 code as it can lead to unsafe driving conditions and potential damage to the vehicle.

6. How can I repair a U0107 code in my Hummer?

Repair options may include replacing the throttle actuator control module, repairing damaged wiring or connectors, reprogramming the ECM, or addressing any communication issues within the vehicle's network.

7. Is it possible to clear a U0107 code in a Hummer without fixing the underlying issue?

Clearing the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely reoccur, and the vehicle may continue to experience problems.

8. Are there any DIY repair tips for a U0107 code in a Hummer?

While some basic troubleshooting like checking for loose connections or damaged wires can be done at home, diagnosing and repairing a U0107 code often requires specialized tools and expertise best handled by a professional mechanic.

9. How much does it typically cost to fix a U0107 code in a Hummer?

The cost of repairing a U0107 code can vary depending on the specific cause of the issue, but it may involve parts replacement, labor costs, and diagnostic fees, which can add up to a few hundred dollars or more.

10. Can a U0107 code in a Hummer cause other problems if left unresolved?

Yes, leaving a U0107 code unresolved can lead to further damage to the vehicle's components, reduced fuel efficiency, and potentially unsafe driving conditions, so it is important to address the issue promptly.

Discuss the causes and fixes for U0107 Hummer OBDII Code

Submit a New Comment

Code U0107 Hummer comments

No comments found for this page.