AutoCodes – Generic – U11F6

U11F6 Code - Lost Communication With Convergenece Telematics Module

Quick Answer

The primary communication network between electronic control modules is the Controller Area Network (CAN) data bus system. Common causes include Faulty Convergence Telematics Module (CTM), Convergence Telematics Module harness is open or shorted, Convergence Telematics 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: U11F6 indicates Lost Communication With Convergenece Telematics Module.
Common causes: Common causes include Faulty Convergence Telematics Module (CTM), Convergence Telematics Module harness is open or shorted, Convergence Telematics 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 2,424

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 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U11F6 Description

The primary communication network between electronic control modules is the Controller Area Network (CAN) data bus system. The Controller Area Network (CAN) data bus allows all electronic modules connected to the bus to share information with each other. Regardless of whether a message originates from a module on the higher speed CAN C (500K) Bus or on the lower speed bus, CAN Interior High Speed (IHS) (125K) Bus, the message structure and layout is similar, which allows the Body Control Module (BCM) to process and transfer messages between the CAN buses. The BCM stores Diagnostic Trouble Codes (DTCs) for certain bus network faults on the CAN C (500K) Bus and CAN IHS (125K) Bus.
The Diagnostic Trouble Code (DTC) sets when the Bus messages not received from the Convergence Telematics Module (CTM) for approximately ten seconds.

OBDII Code U11F6 - Lost Communication With Convergenece Telematics Module - AutoCodes.com — U11F6 Code - Lost Communication With Convergenece Telematics Module

What does this mean?

What are the Possible Causes of the DTC U11F6?

Faulty Convergence Telematics Module (CTM)
Convergence Telematics Module harness is open or shorted
Convergence Telematics Module circuit poor electrical connection

How to Fix the DTC U11F6?

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 U11F6 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.

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Information for Specific Makes

U11F6 Chrysler — Lost Communication With Convergenece Telematics Module
U11F6 Dodge — Lost Communication With Convergenece Telematics Module
U11F6 Fiat — Lost Communication With Convergenece Telematics Module
U11F6 Jeep — Lost Communication With Convergenece Telematics Module
U11F6 RAM — Lost Communication With Convergenece Telematics 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 U11F6 Code

1. What are the common symptoms of OBDII code U11F6 (Lost Communication With Convergence Telematics Module)?

- Common symptoms include the malfunction indicator light (MIL) illuminating, loss of communication with the telematics module, and possible issues with vehicle connectivity features.

2. What could cause OBDII code U11F6 to trigger?

- The code U11F6 can be triggered by wiring issues, a faulty telematics module, software glitches, or a communication network problem within the vehicle.

3. How can I diagnose the cause of OBDII code U11F6?

- Diagnosis typically involves checking the wiring connections to the telematics module, inspecting for any physical damage, testing the module itself, and using a diagnostic scanner to assess communication networks.

4. Can I still drive my vehicle with OBDII code U11F6 present?

- It is generally safe to drive your vehicle with this code, but it is recommended to address the issue promptly to ensure proper functioning of vehicle systems and features.

5. Are there any temporary fixes for OBDII code U11F6?

- Temporary fixes like resetting the system by disconnecting the battery may clear the code temporarily, but it is essential to perform a thorough diagnosis and repair to prevent the issue from recurring.

6. How much does it typically cost to repair OBDII code U11F6?

- The cost of repair can vary depending on the underlying cause, but it may involve anywhere from a simple wiring repair to replacing the telematics module, with costs ranging from a few hundred to over a thousand dollars.

7. Can I repair OBDII code U11F6 myself?

- If you have experience with automotive electrical systems and diagnostic tools, you may be able to diagnose and repair simple wiring issues. However, complex repairs involving module replacement or network troubleshooting are best left to professionals.

8. Will OBDII code U11F6 affect my vehicle's performance?

- While the code itself may not directly impact performance, unresolved communication issues can lead to malfunctions in vehicle systems relying on telematics data, potentially affecting performance and functionality.

9. How long does it take to repair OBDII code U11F6?

- The repair time can vary based on the specific cause of the code and the complexity of the fix. Simple wiring repairs may take a few hours, while module replacement or network diagnostics can extend the repair time to a day or more.

10. Can OBDII code U11F6 cause other codes to appear?

- Yes, communication issues with the telematics module can sometimes trigger related fault codes in other vehicle systems. It is essential to address code U11F6 promptly to prevent cascading issues.