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U0162 Mercury Code - Lost Communication With Navigation Display Module

Quick Answer

The U0162 diagnostic trouble code (DTC) for Mercury vehicles indicates that there is a communication issue between the vehicle's onboard computer system and the Navigation Display Module. Common causes include Loose or corroded wiring connections between the onboard computer system and the Navigation Display Module, Damaged wiring harnesses leading to poor communication between components, A malfunctioning Navigation Display Module that is not sending or receiving data properly. 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
U0162 Mercury indicates Lost Communication With Navigation Display Module.
Common causes
Common causes include Loose or corroded wiring connections between the onboard computer system and the Navigation Display Module, Damaged wiring harnesses leading to poor communication between components, A malfunctioning Navigation Display Module that is not sending or receiving data properly.
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 U0162 Mercury Description

The U0162 diagnostic trouble code (DTC) for Mercury vehicles indicates that there is a communication issue between the vehicle's onboard computer system and the Navigation Display Module. This module is responsible for controlling and displaying navigation information on the vehicle's screen. When communication is lost with this module, it can lead to a variety of issues related to navigation functionality.

OBDII Code U0162 Mercury - Lost Communication With Navigation Display Module
U0162 Mercury Code - Lost Communication With Navigation Display Module

Common Causes of U0162 Mercury

  1. Loose or corroded wiring connections between the onboard computer system and the Navigation Display Module.
  2. Damaged wiring harnesses leading to poor communication between components.
  3. A malfunctioning Navigation Display Module that is not sending or receiving data properly.
  4. Software issues within the navigation system causing communication errors.
  5. Electrical issues within the vehicle's electronic systems affecting communication signals.

Symptoms of U0162 Mercury

  1. Navigation system not displaying any information or showing incorrect data.
  2. Inability to input or change destination addresses on the navigation screen.
  3. Navigation system freezing or crashing intermittently.
  4. Error messages related to the navigation system appearing on the screen.
  5. Loss of other functions that rely on navigation data, such as real-time traffic updates.

How to Fix U0162 Mercury

  1. Begin by conducting a thorough visual inspection of the wiring connections between the onboard computer system and the Navigation Display Module. Ensure all connections are secure and free of corrosion.
  2. Use a multimeter to test the continuity of the wiring harnesses associated with the navigation system. Replace any damaged or faulty wiring as needed.
  3. Check for any software updates or patches available for the Navigation Display Module. Update the software to the latest version to address any potential software-related issues.
  4. If the Navigation Display Module is determined to be faulty, replace it with a new or refurbished unit. Ensure proper programming and calibration of the new module to integrate it with the vehicle's systems.
  5. Clear the DTC from the vehicle's computer system using a diagnostic scanner after completing the repairs to reset the system and ensure the issue has been resolved.

Cost to Fix U0162 Mercury

The typical repair costs for addressing a U0162 code related to a lost communication with the Navigation Display Module can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for replacing a Navigation Display Module can range from $300 to $800, while labor costs for diagnosis and repair can range from $100 to $300. Overall, the total repair cost for this issue may fall within the range of $400 to $1100. It is important to note that these estimates are approximate and actual costs may vary based on factors such as the vehicle's make and model, the location of the repair shop, and any additional services required. It is recommended to consult with a qualified mechanic or dealership for a more accurate cost estimate based on the specific circumstances of the vehicle in question.

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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 U0162 Mercury Code

1. What does the OBDII code U0162 mean on a Mercury?

The U0162 code indicates that the vehicle's control modules have lost communication with the Navigation Display Module.

2. What are the common symptoms of code U0162 in a Mercury?

Symptoms include a blank or non-functional navigation screen, lack of response from navigation controls, and possible audio or infotainment system issues.

3. What causes the U0162 code to appear in a Mercury?

Common causes include faulty wiring or connectors, a malfunctioning Navigation Display Module, or issues with the CAN (Controller Area Network) communication system.

4. Can a dead battery cause the U0162 code on a Mercury?

Yes, a dead or weak battery can disrupt communication between modules, potentially triggering the U0162 code.

5. How do I diagnose the U0162 code in my Mercury?

Start by checking the wiring and connectors to the Navigation Display Module, ensuring there is no corrosion, damage, or loose connections. Use a scan tool to verify if the module is responding.

6. Is the Navigation Display Module always the issue with U0162?

No, the issue could also be with the vehicle's wiring, power supply, or a fault in the CAN communication system.

7. Can I drive my Mercury with the U0162 code active?

Yes, the vehicle is typically drivable, but features like navigation and infotainment may not function properly.

8. How much does it cost to fix the U0162 code on a Mercury?

Repair costs vary but may range from $100 to $1,000, depending on whether it requires simple wiring repairs or replacing the Navigation Display Module.

9. Can a software update fix the U0162 code in a Mercury?

In some cases, a software update for the vehicle's control modules might resolve communication issues and clear the code.

10. Do I need a professional mechanic to fix code U0162 on my Mercury?

If basic checks of wiring and connectors don’t resolve the issue, it’s recommended to consult a professional mechanic with diagnostic tools and experience in module communication systems.

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