U0107 Honda Code - Lost Communication With Throttle Actuator Control Module
Quick Answer
The U0107 diagnostic trouble code (DTC) for Honda vehicles indicates that there is a communication issue between the Engine Control Module (ECM) and the Throttle Actuator Control Module. Common causes include Damaged wiring or connectors, Faulty Throttle Actuator Control Module, Malfunctioning ECM. 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 Honda indicates Lost Communication With Throttle Actuator Control Module.
- Common causes
- Common causes include Damaged wiring or connectors, Faulty Throttle Actuator Control Module, Malfunctioning ECM.
- 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 U0107 Honda Description
The U0107 diagnostic trouble code (DTC) for Honda vehicles indicates that there is a communication issue between the Engine Control Module (ECM) and the Throttle Actuator Control Module. The Throttle Actuator Control Module is responsible for managing the throttle position and ensuring smooth engine operation. When communication is lost between these two critical components, it can lead to significant performance issues and potential safety concerns.
Common Causes of U0107 Honda
- Damaged wiring or connectors
- Faulty Throttle Actuator Control Module
- Malfunctioning ECM
- Software issues within the vehicle's computer systems
Symptoms of U0107 Honda
- Erratic or delayed acceleration
- Stalling or rough idling
- Reduced power mode
- Check Engine Light (CEL) illuminated
How to Fix U0107 Honda
- Perform a thorough inspection of the wiring and connectors to check for any damage or corrosion.
- Test the Throttle Actuator Control Module and ECM for proper function and communication.
- Update or reprogram the vehicle's software if necessary.
- Replace any faulty components, such as the Throttle Actuator Control Module or ECM, if required.
- Clear the DTC and perform a test drive to ensure the issue has been resolved.
Cost to Fix U0107 Honda
The typical repair costs for addressing a U0107 code can vary depending on the specific cause of the communication failure. In general, replacing a Throttle Actuator Control Module or ECM can range from $300 to $800, including parts and labor. However, the total cost may be higher if additional components need to be replaced or if software reprogramming is required. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to consult with a professional for a more accurate estimate based on your vehicle's make and model.
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Frequently Asked Questions about U0107 Honda Code
1. What does the OBDII code U0107 in a Honda mean?
The U0107 code indicates a communication problem between the Engine Control Module (ECM) and the Throttle Actuator Control Module.
2. What are common symptoms of a U0107 code in a Honda?
Common symptoms include issues with acceleration, reduced engine power, stalling, and the Check Engine Light being illuminated.
3. What are possible causes of a U0107 code in a Honda?
Potential causes can include faulty wiring or connectors, a malfunctioning Throttle Actuator Control Module, a faulty ECM, or a communication bus issue.
4. How can I diagnose a U0107 code in my Honda?
Diagnosis typically involves checking the wiring and connectors for any damage or corrosion, testing the Throttle Actuator Control Module, and using a diagnostic scan tool to communicate with the modules.
5. Can I still drive my Honda with a U0107 code present?
It is not recommended to drive your vehicle with a U0107 code present, as it can lead to unsafe driving conditions and potential damage to the engine.
6. How can I repair a U0107 code in my Honda?
Repair methods may include repairing or replacing damaged wiring, cleaning or replacing connectors, replacing the Throttle Actuator Control Module, or reprogramming the ECM.
7. Can a U0107 code be triggered by a loose gas cap?
No, a U0107 code is related to a communication issue between specific modules in the vehicle and is not typically caused by a loose gas cap.
8. Is it possible to clear a U0107 code without fixing the underlying issue?
Clearing the code without addressing the underlying problem may temporarily turn off the Check Engine Light, but the issue causing the code will likely reappear.
9. How long does it take to repair a U0107 code in a Honda?
The repair time can vary depending on the exact cause of the issue, but it may take a few hours to a full day to diagnose and fix the problem.
10. Can a U0107 code be prevented in the future?
Regular maintenance, such as checking and cleaning electrical connectors, can help prevent communication issues that may lead to a U0107 code in the future.
Discuss the causes and fixes for U0107 Honda OBDII Code
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I can't find anywhere on the internet where to find the TAC module in my 05 TSX!? Plz help!
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The TAC Module is under the right side of the dash. Behind the glove box. You have to remove the right kick panel to access the module.

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Yes I did end up fixing my car... All by myself also, might I add. ?
The problem was not the TAC module but the ECU. It was majorly corroded despite the fact that I'd literally just taken the car to the dealership for a recall on ECU corrosion. I ended up buying a used ECU and swapping out the immobilizer chip. Unfortunately I realized after doing the replacement that the 06 TSX uses a different type of 2nd coolant temp sensor so the computer thinks the values on my ECT2 sensor are incorrect... But other than that all the values were good based off the OBD data.
I was able to drive without the car being in limp mode after doing the replacement, but the starter went out literally after only one trip. (AND yes it was def the starter bc I removed it and tried jumping straight from fully charged battery and still nothing.. Even without the load of being on the car ). SOOOO..I just parked the POS after that bc it also needs a rack and pinion and AC compressor clutch.
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