AutoCodes – Generic – U128F

U128F Code - Gauge Control Module Lost Communication With BSI Radar Unit

Quick Answer

The Diagnostic Trouble Code (DTC) sets when a communication malfunction was detected between the Gauge Control Module and the BSI Radar Unit. Common causes include Faulty Gauge Control Module, Gauge Control Module harness is open or shorted, Gauge Control Module circuit poor electrical connection. 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: U128F indicates Gauge Control Module Lost Communication With BSI Radar Unit.
Common causes: Common causes include Faulty Gauge Control Module, Gauge Control Module harness is open or shorted, Gauge Control Module circuit poor electrical connection.
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 2,789

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 May 11, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U128F Description

The Diagnostic Trouble Code (DTC) sets when a communication malfunction was detected between the Gauge Control Module and the BSI Radar Unit.

OBDII Code U128F - Gauge Control Module Lost Communication With BSI Radar Unit - AutoCodes.com — U128F Code - Gauge Control Module Lost Communication With BSI Radar Unit

What does this mean?

What are the Possible Causes of the DTC U128F?

Faulty Gauge Control Module
Gauge Control Module harness is open or shorted
Gauge Control Module circuit poor electrical connection
Faulty BSI Radar Unit

How to Fix the DTC U128F?

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 U128F 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 U128F code?

Need more information on how to fix the U128F code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U128F code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U128F Acura — Gauge Control Module Lost Communication With BSI Radar Unit
U128F Honda — Gauge Control Module Lost Communication With BSI Radar Unit

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 U128F Code

1. What are the common symptoms of OBDII code U128F?

- Common symptoms include issues with the radar unit, malfunctioning gauge control module, warning lights on the dashboard, and potential loss of communication between the two components.

2. What does the U128F code indicate?

- The U128F code indicates that there is a communication problem between the gauge control module and the BSI radar unit in the vehicle.

3. What are some possible causes of code U128F?

- Possible causes include damaged wiring or connectors, a faulty gauge control module or radar unit, software issues, or a power supply problem.

4. How do I diagnose the U128F code?

- Diagnosing the U128F code typically involves checking the wiring and connectors for damage, testing the components involved, and using a diagnostic tool to communicate with the modules.

5. Can I still drive my vehicle with the U128F code present?

- It is not recommended to drive the vehicle with the U128F code present, as it can lead to safety issues and affect the performance of certain driver assistance systems.

6. How can I repair the U128F code?

- Repairing the U128F code may involve repairing or replacing damaged wiring, connectors, or components, updating software, or reprogramming the modules involved.

7. Do I need special tools to fix the U128F code?

- Yes, diagnosing and repairing the U128F code may require special diagnostic tools to communicate with the modules and perform necessary tests and repairs.

8. Can a DIY enthusiast fix the U128F code?

- While some basic troubleshooting steps can be taken by a DIY enthusiast, fixing the U128F code often requires advanced knowledge and specialized equipment, so it is recommended to seek professional help.

9. How much does it cost to repair the U128F code?

- The cost of repairing the U128F code can vary depending on the extent of the issue, the parts needed, and labor costs. It is advisable to get a diagnosis from a professional technician for an accurate estimate.

10. Is the U128F code a common issue in certain vehicle models?

- The U128F code can be more prevalent in vehicles equipped with advanced driver assistance systems that rely on communication between various modules, such as radar units and gauge control modules.