AutoCodes – Ford – U0104 Ford

U0104 Ford Code - Lost Communication Cruise Control Module

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Cruise Control Module, Cruise Control Module harness is open or shorted, Cruise 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: U0104 Ford indicates Lost Communication Cruise Control Module.
Common causes: Common causes include Faulty Cruise Control Module, Cruise Control Module harness is open or shorted, Cruise 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 3,257

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 Mar 31, 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 U0104 Ford Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Cruise Control Module has not been received.

OBDII Code U0104 Ford - Lost Communication Cruise Control Module - AutoCodes.com — U0104 Ford Code - Lost Communication Cruise Control Module

What does this mean?

What are the Possible Causes of the DTC U0104 Ford?

Faulty Cruise Control Module
Cruise Control Module harness is open or shorted
Cruise Control Module circuit poor electrical connection

How to Fix the DTC U0104 Ford?

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 U0104 Ford 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 U0104 Ford code?

Need more information on how to fix the U0104 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0104 Ford 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 U0104 Ford Code

1. What are the common symptoms of OBDII code U0104 in a Ford related to the Cruise Control Module?

- Common symptoms include the cruise control not working, the cruise control light staying illuminated, and the vehicle displaying the U0104 code.

2. What causes the OBDII code U0104 in a Ford indicating Lost Communication with the Cruise Control Module?

- This code is typically triggered by a communication breakdown between the vehicle's main computer and the cruise control module due to wiring issues, module failure, or software glitches.

3. How can I diagnose the U0104 code related to the Cruise Control Module in my Ford?

- To diagnose this issue, you can start by checking the wiring connections between the main computer and the cruise control module, inspecting for any visible damage or loose connections.

4. Can a DIY enthusiast repair the U0104 code in a Ford associated with the Cruise Control Module?

- Depending on your skill level and access to tools, you may be able to repair this issue yourself by fixing any faulty wiring connections, replacing the cruise control module, or updating the software.

5. Is it safe to continue driving with the U0104 code related to the Cruise Control Module in my Ford?

- While the U0104 code is mainly related to the cruise control system, it's essential to address the underlying communication issue. It is recommended to fix the problem to ensure proper functioning of the vehicle's systems.

6. How much does it cost to repair the U0104 code indicating Lost Communication with the Cruise Control Module in a Ford?

- The cost of repairing the U0104 code can vary depending on the exact cause of the issue. It may range from a simple fix like repairing wiring connections to a more expensive replacement of the cruise control module.

7. Can a software update fix the U0104 code in a Ford related to the Cruise Control Module?

- In some cases, a software update performed by a qualified technician can resolve the U0104 code by addressing any communication errors between the main computer and the cruise control module.

8. Are there any recalls or technical service bulletins related to the U0104 code in Ford vehicles?

- It's advisable to check with Ford or authorized service centers for any recalls or technical service bulletins related to the U0104 code in your specific Ford model to see if there are any known issues or remedies.

9. Will disconnecting the battery reset the U0104 code associated with the Cruise Control Module in a Ford?

- Disconnecting the battery may clear the code temporarily, but if the underlying issue causing the U0104 code is not addressed, it is likely to reappear once the system is back in operation.

10. How long does it take to repair the U0104 code related to the Cruise Control Module in a Ford?

- The repair time for the U0104 code can vary depending on the complexity of the issue. Simple fixes like repairing wiring connections may take less time, while replacing the cruise control module can be more time-consuming.