AutoCodes – Chevrolet – U0107 Chevrolet

U0107 Chevrolet Code - Lost Communication With Throttle Actuator Control Module

Quick Answer

The Throttle Actuator Control (TAC) module and the Powertrain Control Module (PCM) communicate via a dedicated serial data circuit. Common causes include Faulty Throttle Actuator Control (TAC) Module, Throttle Actuator Control Module harness is open or shorted, Throttle Actuator Control Module circuit poor electrical connection (loose or broken wires). 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 Chevrolet indicates Lost Communication With Throttle Actuator Control Module.
Common causes
Common causes include Faulty Throttle Actuator Control (TAC) Module, Throttle Actuator Control Module harness is open or shorted, Throttle Actuator Control Module circuit poor electrical connection (loose or broken wires).
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 58,523
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Nov 01, 2020
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Code U0107 Chevrolet Description

The Throttle Actuator Control (TAC) module and the Powertrain Control Module (PCM) communicate via a dedicated serial data circuit. This serial data circuit is separated from other serial data circuits on the vehicle. Accurate transmitting and receiving of serial data require not only good circuit integrity but also sufficient system voltage. This diagnostic test monitors de accuracy of the serial data transmitted between the TAC module and the PCM. The Diagnostic Trouble Code (DTC) U0107 is set when the Powertrain Control Module detects a loss of data or invalid data from the Throttle Actuator Control.
OBDII Code U0107 Chevrolet - Lost Communication With Throttle Actuator Control Module - AutoCodes.com
U0107 Chevrolet Code - Lost Communication With Throttle Actuator Control Module

What are the Possible Causes of the DTC U0107 Chevrolet?

  • Faulty Throttle Actuator Control (TAC) Module
  • Throttle Actuator Control Module harness is open or shorted
  • Throttle Actuator Control Module circuit poor electrical connection (loose or broken wires)

How to Fix the DTC U0107 Chevrolet?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0107 Chevrolet 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 U0107 Chevrolet code?

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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 U0107 Chevrolet Code

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

The code U0107 indicates a communication problem between the Engine Control Module (ECM) and the Throttle Actuator Control Module (TAC).

2. What are some common symptoms of a U0107 code in a Chevrolet?

Common symptoms include a check engine light, reduced engine power, poor acceleration, and potential stalling of the vehicle.

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

Possible causes include faulty wiring, a defective Throttle Actuator Control Module, issues with the ECM, or a communication breakdown between the modules.

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

Diagnosing a U0107 code involves using an OBDII scanner to retrieve the code, checking the wiring connections between the ECM and TAC module, and testing the modules for proper functionality.

5. Can I drive my Chevrolet with a U0107 code?

It is not recommended to drive your Chevrolet with a U0107 code as it can lead to safety hazards and further damage to the vehicle. It's best to address the issue promptly.

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

Repairing a U0107 code may involve repairing or replacing damaged wiring, replacing the Throttle Actuator Control Module, or reprogramming the ECM to establish proper communication.

7. Is it necessary to reset the U0107 code after repairs are made?

Yes, it is important to clear the U0107 code after repairs to reset the ECM and ensure the issue has been resolved. This can be done using an OBDII scanner.

8. Can a U0107 code be intermittent in a Chevrolet?

Yes, a U0107 code can sometimes be intermittent, which means the communication problem between the ECM and TAC module may come and go. It's important to address the issue even if it is intermittent.

9. Can a DIYer fix a U0107 code in a Chevrolet?

While some basic diagnostics and repairs can be done by a DIYer, diagnosing and repairing a U0107 code may require specialized tools and expertise. It's recommended to seek professional help for accurate diagnosis and repair.

10. How much does it cost to repair a U0107 code in a Chevrolet?

The cost of repairing a U0107 code can vary depending on the underlying cause of the issue, the need for replacement parts, and labor costs. It's best to consult with a mechanic for a detailed estimate based on your specific situation.

Discuss the causes and fixes for U0107 Chevrolet OBDII Code

  • I thought my transmission was going out on my 06 Chevy avalanche but now I am getting a code u0107. Do they work together?
    It slips into gear, burns gas no speed

  • The U0107 code means that the Powertrain Control Module (PCM) lost communication with the Throttle Body Control Module, that could cause no power or poor acceleration, but not a transmission slip problem.
    According to a national database of repairs, the most likely cause for the U0107 code is either the Throttle Body Control Module (#1 on the image) or the Throttle Body.

    Image

    Click here to enlarge image

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