AutoCodes – Ford – U0016 Ford

U0016 Ford Code - Medium Speed CAN Communication Bus (-) Low

Quick Answer

Multiplexing is a method of sending 2 or more signals simultaneously over a single circuit. Common causes include Diagnosis of this Diagnostic Trouble Code (DTC) is accomplished via the vehicle symptom(s), Check for more codes, Faulty 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: U0016 Ford indicates Medium Speed CAN Communication Bus (-) Low.
Common causes: Common causes include Diagnosis of this Diagnostic Trouble Code (DTC) is accomplished via the vehicle symptom(s), Check for more codes, Faulty 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.

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Code Popularity 2,284

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 29, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0016 Ford Description

Multiplexing is a method of sending 2 or more signals simultaneously over a single circuit. Multiplexing allows 2 or more electronic modules (nodes) to communicate over a twisted wire pair [data (+) and data (-)] network. The information or messages that can be communicated on these wires consists of commands, status or data. Multiplexing reduces the weight of the vehicle by reducing the number of redundant components and electrical wiring. The vehicle has 4 module communication networks connected to the DLC, located under the instrument panel. The communication networks are: HEV High Speed Controller Area Network (HS-CAN), High Speed Controller Area Network (HS-CAN), Medium Speed Controller Area Network (MS-CAN) and Infotainment Controller Area Network (I-CAN). The Diagnostic Trouble Code (DTC) U0016 sets when a Medium Speed Controller Area Network (MS-CAN) fault is present but the network may still be functional at a degraded level. One or more modules may not communicate and may not be sending or receiving messages.

OBDII Code U0016 Ford - Medium Speed CAN Communication Bus (-) Low - AutoCodes.com — U0016 Ford Code - Medium Speed CAN Communication Bus (-) Low

What does this mean?

What are the Possible Causes of the DTC U0016 Ford?

Diagnosis of this Diagnostic Trouble Code (DTC) is accomplished via the vehicle symptom(s)
Check for more codes
Faulty Control Module
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC U0016 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 U0016 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 U0016 Ford code?

Need more information on how to fix the U0016 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0016 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 U0016 Ford Code

1. What are the common symptoms of OBDII code U0016 on a Ford vehicle?

The common symptoms of code U0016 include issues with the vehicle's network communication system, such as dashboard warning lights, loss of communication with certain modules, and potential drivability issues.

2. What does the U0016 code mean for a Ford vehicle?

The U0016 code indicates a problem with the Medium Speed CAN Communication Bus (-), specifically low voltage detected on the network.

3. What are the possible causes of the U0016 code in a Ford vehicle?

Possible causes of the U0016 code include damaged wiring or connectors in the CAN bus system, faulty control modules, a short circuit, or a defective CAN bus network.

4. How can I diagnose the U0016 trouble code on my Ford?

Diagnosing the U0016 code typically involves using a diagnostic scanner to retrieve the trouble codes, checking the wiring and connectors in the CAN bus system for damage, and testing the control modules for proper function.

5. Is it safe to drive with the U0016 trouble code present on a Ford vehicle?

It is not recommended to drive with the U0016 code present, as it can lead to potential communication issues between critical vehicle systems and may affect drivability and safety.

6. How can I repair the U0016 code on my Ford vehicle?

Repairing the U0016 code may involve repairing or replacing damaged wiring or connectors in the CAN bus system, addressing any short circuits, testing and potentially replacing faulty control modules, and clearing the trouble codes with a diagnostic scanner.

7. Can a DIY enthusiast fix the U0016 trouble code on a Ford?

While some basic troubleshooting steps can be performed by a knowledgeable DIY enthusiast, diagnosing and repairing the U0016 code may require specialized tools and expertise, making it advisable to consult a professional mechanic.

8. How much does it cost to fix the U0016 trouble code on a Ford vehicle?

The cost to fix the U0016 code can vary depending on the underlying cause of the issue, the extent of the repairs needed, and labor rates in your area. It's best to obtain a diagnosis from a mechanic for an accurate estimate.

9. Will disconnecting the battery reset the U0016 trouble code on a Ford?

Disconnecting the battery may temporarily clear the trouble code, but if the underlying issue is not addressed, the code is likely to reappear once the vehicle is driven and the system detects the problem again.

10. How can I prevent the U0016 trouble code from reoccurring on my Ford vehicle?

To prevent the U0016 code from reoccurring, it's essential to address the root cause of the issue by ensuring proper wiring connections, maintaining the vehicle's electrical system, and promptly addressing any communication network problems. Regular vehicle maintenance can also help prevent similar codes from appearing.