AutoCodes – Generic – U15F3

U15F3 Code - Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus

Quick Answer

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. Common causes include Faulty Navigation Control Module, Navigation Control Module harness is open or shorted, Navigation 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: U15F3 indicates Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus.
Common causes: Common causes include Faulty Navigation Control Module, Navigation Control Module harness is open or shorted, Navigation 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,406

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 Jun 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U15F3 Description

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. The serial data is transmitted over a LIN circuit between a master control module and other LIN devices within a particular subsystem. If serial data communication is lost between any of the LIN devices on the LIN bus network, the master control module will set a no communication code against the non-communicating LIN device. The Diagnostic Trouble Code (DTC) will set when a supervised periodic message to the Human Machine Interface Control Module from the Navigation Control Module has not been received.

OBDII Code U15F3 - Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus - AutoCodes.com — U15F3 Code - Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus

What does this mean?

What are the Possible Causes of the DTC U15F3?

Faulty Navigation Control Module
Navigation Control Module harness is open or shorted
Navigation Control Module circuit poor electrical connection
Faulty Human Machine Interface Control Module

How to Fix the DTC U15F3?

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 U15F3 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 U15F3 code?

Need more information on how to fix the U15F3 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U15F3 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U15F3 Buick — Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus
U15F3 Cadillac — Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus
U15F3 Chevrolet — Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus
U15F3 GMC — Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus

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 U15F3 Code

1. What are the common symptoms of OBDII code U15F3?

- Common symptoms include loss of communication between the Human Machine Interface (HMI) control module and the Navigation control module, leading to issues with the vehicle's navigation system.

2. What can cause the U15F3 code to trigger?

- The U15F3 code is triggered when there is a communication failure on the Local Interconnect Network (LIN) bus between the HMI control module and the Navigation control module.

3. How can I diagnose the U15F3 code?

- Diagnosing the U15F3 code involves checking the wiring and connections between the HMI control module and the Navigation control module, as well as testing the modules themselves for faults.

4. Can a loose connection cause the U15F3 code?

- Yes, a loose or poor connection between the HMI control module and the Navigation control module on the LIN bus can cause the U15F3 code to trigger.

5. What are the repair tips for resolving the U15F3 code?

- Repair tips for the U15F3 code include checking and securing all connections on the LIN bus, inspecting the wiring for any damage, and potentially replacing either the HMI control module or the Navigation control module if they are found to be faulty.

6. Is it safe to drive with the U15F3 code present?

- It is generally safe to drive with the U15F3 code, but it is recommended to address the issue promptly to ensure proper functioning of the vehicle's navigation system.

7. Can a software update fix the U15F3 code?

- In some cases, a software update from the manufacturer may be able to resolve the U15F3 code by addressing communication issues between the HMI control module and the Navigation control module.

8. How much does it typically cost to repair the U15F3 code?

- The cost of repairing the U15F3 code can vary depending on the underlying cause, but it may involve labor costs for diagnosis and potential replacement of modules or wiring.

9. Will disconnecting the battery reset the U15F3 code?

- Disconnecting the battery may temporarily reset the U15F3 code, but if the underlying issue is not addressed, the code is likely to reappear once the system is back online.

10. How common is the U15F3 code in vehicles?

- The U15F3 code related to communication issues between the HMI control module and the Navigation control module on the LIN bus is relatively common in vehicles equipped with these components.