Engine-Codes.com
Engine-Codes – Honda – U128D Honda

U128D Honda Code - Power Seat Control Unit Lost Communication With Gauge Control Module

Quick Answer

The U128D code for Honda vehicles indicates that there is a communication issue between the power seat control unit and the gauge control module. Common causes include Faulty wiring or connections between the power seat control unit and gauge control module, Defective power seat control unit, Issues with the gauge 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
U128D Honda indicates Power Seat Control Unit Lost Communication With Gauge Control Module.
Common causes
Common causes include Faulty wiring or connections between the power seat control unit and gauge control module, Defective power seat control unit, Issues with the gauge 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 06, 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 U128D Honda Description

The U128D code for Honda vehicles indicates that there is a communication issue between the power seat control unit and the gauge control module. This can lead to a loss of functionality in the power seat controls, affecting the ability to adjust the seat position, recline, or control lumbar support. The power seat control unit relies on communication with the gauge control module to operate correctly, so when this communication is disrupted, it can result in the power seat not working properly.

OBDII Code U128D Honda - Power Seat Control Unit Lost Communication With Gauge Control Module
U128D Honda Code - Power Seat Control Unit Lost Communication With Gauge Control Module

Common Causes of U128D Honda

  1. Faulty wiring or connections between the power seat control unit and gauge control module.
  2. Defective power seat control unit.
  3. Issues with the gauge control module.
  4. Software or firmware glitches causing communication errors.
  5. Electrical interference or signal disruption.

Symptoms of U128D Honda

  1. Inability to adjust the power seat position.
  2. Loss of control over seat recline function.
  3. Malfunctioning lumbar support adjustment.
  4. Dashboard warning light related to power seat control.

How to Fix U128D Honda

  1. Perform a diagnostic scan to confirm the U128D code and pinpoint the exact source of the communication issue.
  2. Inspect wiring and connections for any damage or loose connections, repairing or replacing as necessary.
  3. Test the power seat control unit and gauge control module for functionality and replace if found to be faulty.
  4. Update software or firmware to address any communication errors.
  5. Clear the diagnostic trouble codes and test the power seat controls to ensure proper functionality.

Cost to Fix U128D Honda

The cost of repairing a power seat control unit communication issue like U128D can vary depending on the specific cause of the problem and the labor rates in your area. On average, the repair costs for this issue can range from $150 to $500, including parts and labor. However, it is recommended to get a detailed quote from a trusted auto repair shop to get a more accurate estimate based on your vehicle's make and model. Labor rates at dealerships or in metropolitan areas may be higher, while independent shops could offer more affordable rates.

Need more information about the U128D Honda code?

Need more information on how to fix the U128D Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U128D Honda 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 U128D Honda Code

1. What are the common symptoms of OBDII code U128D in a Honda related to the Power Seat Control Unit?

- Common symptoms include malfunctioning power seat controls, erratic seat movements, and issues with seat memory settings.

2. What could be the possible causes of OBDII code U128D in a Honda indicating that the Power Seat Control Unit lost communication with the Gauge Control Module?

- Possible causes may include a faulty power seat control unit, a malfunctioning gauge control module, wiring issues, or a communication network problem.

3. How can I diagnose OBDII code U128D in my Honda to pinpoint the exact cause of the communication loss between the Power Seat Control Unit and Gauge Control Module?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific trouble codes, testing the power seat controls, inspecting wiring connections, and checking the communication network.

4. Is it safe to continue driving my Honda if OBDII code U128D related to the Power Seat Control Unit communication issue is present?

- It is generally safe to drive, but it is recommended to address the issue promptly to avoid potential inconvenience or further electrical problems.

5. Can I reset OBDII code U128D in my Honda related to the Power Seat Control Unit communication problem by disconnecting the battery?

- Disconnecting the battery may temporarily clear the code, but it is essential to diagnose and address the underlying issue causing the communication loss for a lasting repair.

6. Are there any common repair tips for fixing OBDII code U128D in a Honda due to the Power Seat Control Unit communication failure?

- Common repair tips include checking and repairing any damaged wiring, ensuring proper connections, replacing faulty control units, and updating software if necessary.

7. Will fixing OBDII code U128D in a Honda related to the Power Seat Control Unit communication issue require professional assistance?

- Depending on your automotive knowledge and experience, you may be able to address the issue yourself by following diagnostic procedures and repair guides. However, seeking professional help is recommended if you are unsure.

8. How much can I expect to pay for repairing OBDII code U128D in a Honda caused by the Power Seat Control Unit losing communication with the Gauge Control Module?

- Repair costs can vary based on the exact cause of the issue, parts needed for replacement, labor rates, and whether you choose to address the problem yourself or take it to a professional mechanic.

9. Can extreme weather conditions or environmental factors contribute to OBDII code U128D appearing in a Honda due to the Power Seat Control Unit issue?

- While rare, extreme weather conditions or moisture intrusion can potentially affect the electrical components and connections involved, leading to communication errors between the Power Seat Control Unit and Gauge Control Module.

10. Is it possible for OBDII code U128D in a Honda related to the Power Seat Control Unit communication problem to reoccur after being repaired?

- If the root cause of the communication issue is not effectively addressed during the repair, there is a possibility that OBDII code U128D may reappear. Conducting thorough diagnostics and ensuring proper repairs can help prevent recurrence.

Discuss the causes and fixes for U128D Honda OBDII Code

Submit a New Comment

Code U128D Honda comments

No comments found for this page.