AutoCodes – Lincoln – U0007 Lincoln

U0007 Lincoln Code - High 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: U0007 Lincoln indicates High 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 691

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 U0007 Lincoln 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) U0007 sets when a High Speed Controller Area Network (HS-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 U0007 Lincoln - High Speed CAN Communication Bus (-) Low - AutoCodes.com — U0007 Lincoln Code - High Speed CAN Communication Bus (-) Low

What does this mean?

What are the Possible Causes of the DTC U0007 Lincoln?

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 U0007 Lincoln?

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 U0007 Lincoln 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 U0007 Lincoln code?

Need more information on how to fix the U0007 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0007 Lincoln 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 U0007 Lincoln Code

1. What are the common symptoms of OBDII code U0007 in a Lincoln related to High Speed CAN Communication Bus (-) Low?

The common symptoms include issues with the vehicle's communication system, such as intermittent or constant loss of communication with various control modules.

2. What are the possible causes of OBDII code U0007 in a Lincoln?

Possible causes of this code could be damaged wiring or connectors in the High Speed CAN Communication Bus (-) circuit, faulty control modules, or a problem with the vehicle's network communication system.

3. How can I diagnose the source of OBDII code U0007 in my Lincoln?

A thorough diagnostic process is recommended, involving checking the wiring and connectors for damage, testing the control modules for proper functionality, and inspecting the network communication system for any faults.

4. What are some repair tips for fixing OBDII code U0007 in a Lincoln?

Repair tips may include repairing or replacing damaged wiring or connectors, replacing faulty control modules, and ensuring proper communication within the vehicle's network system by addressing any identified issues.

5. Can OBDII code U0007 in a Lincoln be reset without addressing the underlying issue?

Resetting the code without addressing the underlying issue may temporarily clear the fault code, but the problem causing the code will likely persist and trigger the code again in the future.

6. Is it safe to continue driving my Lincoln with OBDII code U0007 present?

It is generally not recommended to continue driving the vehicle with an unresolved communication issue indicated by OBDII code U0007, as it can lead to further malfunctions or affect the vehicle's performance.

7. How much does it typically cost to repair OBDII code U0007 in a Lincoln?

The cost of repairing OBDII code U0007 can vary depending on the specific cause of the issue, the extent of the repairs needed, and whether any parts need to be replaced. It is advisable to consult with a professional technician for an accurate estimate.

8. Can a DIY enthusiast fix OBDII code U0007 in a Lincoln?

While some DIY enthusiasts may have the skills to diagnose and repair simple wiring or connector issues related to OBDII code U0007, more complex problems involving control modules or network communication may require professional expertise.

9. Will OBDII code U0007 cause my Lincoln to fail an emissions test?

If OBDII code U0007 is related to a communication issue within the vehicle, it may affect the emissions control system and potentially cause the vehicle to fail an emissions test. It is recommended to resolve the issue before undergoing an emissions test.

10. How can I prevent OBDII code U0007 from recurring in my Lincoln?

Regular maintenance and proper care of the vehicle's communication system, including checking wiring integrity and addressing any network communication issues promptly, can help prevent OBDII code U0007 from recurring.