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Engine-Codes – Mercury – U0017 Mercury

U0017 Mercury Code - Medium Speed CAN Communication Bus (-) High

Quick Answer

The U0017 code for Mercury vehicles indicates a problem with the Medium Speed Controller Area Network (CAN) communication bus, specifically a high voltage issue on the negative (-) side. Common causes include Faulty Medium Speed CAN communication bus module, Wiring or connection issues in the CAN bus circuit, Corrosion or damage to CAN bus connectors. 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
U0017 Mercury indicates Medium Speed CAN Communication Bus (-) High.
Common causes
Common causes include Faulty Medium Speed CAN communication bus module, Wiring or connection issues in the CAN bus circuit, Corrosion or damage to CAN bus connectors.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code U0017 Mercury Description

The U0017 code for Mercury vehicles indicates a problem with the Medium Speed Controller Area Network (CAN) communication bus, specifically a high voltage issue on the negative (-) side. The CAN bus is a network that allows various modules in the vehicle to communicate with each other. When there is a fault in the Medium Speed CAN communication bus, it can lead to issues with the vehicle's electronic systems and overall performance.

OBDII Code U0017 Mercury - Medium Speed CAN Communication Bus (-) High
U0017 Mercury Code - Medium Speed CAN Communication Bus (-) High

Common Causes of U0017 Mercury

  1. Faulty Medium Speed CAN communication bus module
  2. Wiring or connection issues in the CAN bus circuit
  3. Corrosion or damage to CAN bus connectors
  4. Electrical interference from aftermarket accessories
  5. Water intrusion into the CAN bus system

Symptoms of U0017 Mercury

  1. Check Engine Light illuminated on the dashboard
  2. Erratic behavior of electronic systems (e.g., radio, climate control)
  3. Transmission shifting problems
  4. ABS or traction control warning lights activated
  5. Loss of communication with scan tools

How to Fix U0017 Mercury

  1. Begin by conducting a thorough inspection of the Medium Speed CAN communication bus circuit, checking for any visible damage, corrosion, or loose connections.
  2. Use a multimeter to test the voltage on the negative side of the CAN bus to determine if it is within the specified range.
  3. If the voltage is too high, diagnose the source of the issue, which may involve testing individual modules connected to the CAN bus.
  4. Replace any faulty modules or repair damaged wiring or connectors as needed.
  5. Clear the diagnostic trouble codes from the vehicle's memory and perform a test drive to ensure that the issue has been resolved.

Cost to Fix U0017 Mercury

The typical repair costs for addressing a U0017 code on a Mercury vehicle can vary depending on the specific cause of the issue. In general, parts for this repair may range from $100 to $500, while labor costs can add another $100 to $300. Overall, the total repair cost could fall between $200 and $800. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle specifics.

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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 U0017 Mercury Code

1. What are the common symptoms of OBDII code U0017 in a Mercury vehicle?

- Common symptoms include issues with the vehicle's transmission, erratic shifting, poor fuel efficiency, and possibly the illumination of the Check Engine Light.

2. What does the OBDII code U0017 Mercury mean?

- The code U0017 indicates a problem with the Medium Speed CAN Communication Bus (-) High in the vehicle's network.

3. What are the possible causes of the U0017 code in a Mercury?

- Possible causes of this code include damaged wiring or connectors in the CAN bus system, faulty control modules, or a malfunctioning CAN bus network.

4. How can I diagnose the U0017 code in my Mercury?

- Diagnosing the U0017 code typically involves using a diagnostic scanner to retrieve the code, inspecting the wiring and connectors in the CAN bus system, and testing the control modules for proper operation.

5. Is it safe to continue driving with the U0017 code present in my Mercury?

- It is not recommended to continue driving with the U0017 code as it can lead to further damage to the vehicle's systems. It is best to address the issue promptly.

6. Can I repair the U0017 code in my Mercury on my own?

- While some basic checks like inspecting wiring and connections can be done by DIY enthusiasts, diagnosing and repairing the U0017 code often requires professional equipment and expertise.

7. How much does it typically cost to repair the U0017 code in a Mercury?

- The cost of repairing the U0017 code can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Are there any common tricks or quick fixes for the U0017 code in a Mercury?

- Quick fixes or temporary solutions are not recommended for the U0017 code, as addressing the root cause of the issue is crucial to prevent further problems with the vehicle.

9. How long does it usually take to repair the U0017 code in a Mercury?

- The repair time for the U0017 code can vary depending on the specific diagnosis and the availability of parts, but it may take a few hours to a full day to address the issue.

10. Can the U0017 code in a Mercury be related to other codes or issues in the vehicle?

- Yes, the U0017 code can sometimes be related to other communication bus codes or issues within the vehicle's network, so a thorough diagnosis is important to ensure all problems are addressed.

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