AutoCodes – Generic – U0107

U0107 Code - Lost Communication With Throttle Actuator Control Module

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Throttle Actuator Control (TAC) module, Throttle Actuator Control (TAC) module harness is open or shorted, Throttle Actuator Control (TAC) 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 indicates Lost Communication With Throttle Actuator Control Module.
Common causes: Common causes include Faulty Throttle Actuator Control (TAC) module, Throttle Actuator Control (TAC) module harness is open or shorted, Throttle Actuator Control (TAC) 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 8,513

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 30, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0107 Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Throttle Actuator Control Module has not been received.

OBDII Code U0107 - Lost Communication With Throttle Actuator Control Module - AutoCodes.com — U0107 Code - Lost Communication With Throttle Actuator Control Module

What does this mean?

What are the Possible Causes of the DTC U0107?

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

How to Fix the DTC U0107?

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 U0107 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 code?

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

Need Help with the Code?

Get the U0107 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U0107 Acura — Lost Communication With Throttle Actuator Control Module
U0107 Buick — Lost Communication With Throttle Actuator Control Module
U0107 Cadillac — Lost Communication With Throttle Actuator Control Module
U0107 Chevrolet — Lost Communication With Throttle Actuator Control Module
U0107 GMC — Lost Communication With Throttle Actuator Control Module
U0107 Honda — Lost Communication With Throttle Actuator Control Module
U0107 Hummer — Lost Communication With Throttle Actuator Control Module
U0107 Saturn — Lost Communication With Throttle Actuator Control Module

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 Code

1. What are the common symptoms of OBDII code U0107 (Lost Communication With Throttle Actuator Control Module)?

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

2. What are the possible causes of OBDII code U0107?

- Causes can include a faulty throttle actuator control module, damaged wiring or connectors, a blown fuse, or software issues.

3. How can I diagnose OBDII code U0107?

- Diagnosing this code typically involves checking the wiring and connectors for damage, testing the throttle actuator control module, and using a scan tool to communicate with the module.

4. Can I still drive my vehicle with OBDII code U0107 present?

- It is not recommended to drive the vehicle with this code present, as it can cause performance issues and potentially lead to further damage.

5. How can I repair OBDII code U0107?

- Repairing this code may involve replacing the throttle actuator control module, repairing or replacing damaged wiring or connectors, checking and replacing fuses, or updating software.

6. Will disconnecting the battery reset OBDII code U0107?

- Disconnecting the battery may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return.

7. Can a DIY enthusiast fix OBDII code U0107?

- While some aspects of diagnosing and repairing this code may be within reach of a skilled DIY enthusiast, it is often best to seek professional help due to the complexity of the throttle control system.

8. How much does it cost to repair OBDII code U0107?

- The cost of repairing this code can vary depending on the specific issue, parts needed, and labor rates. It's best to get a diagnostic from a mechanic for an accurate estimate.

9. Is OBDII code U0107 a common issue in certain vehicle makes and models?

- This code can occur in various vehicle makes and models, particularly those equipped with electronic throttle control systems.

10. What happens if OBDII code U0107 is ignored?

- Ignoring this code can lead to persistent performance issues, potential safety hazards, and may result in further damage to the vehicle's throttle control system.