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Engine-Codes – Generic – U0163

U0163 Code - Lost Communication with Navigation Control Module

Quick Answer

The U0163 code indicates that the vehicle's onboard computer has lost communication with the Navigation Control Module. Common causes include Wiring or connection issues, Faulty Navigation Control Module, Software glitch in the navigation system. 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
U0163 indicates Lost Communication with Navigation Control Module.
Common causes
Common causes include Wiring or connection issues, Faulty Navigation Control Module, Software glitch in the navigation system.
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 11, 2024
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Code U0163 Description

The U0163 code indicates that the vehicle's onboard computer has lost communication with the Navigation Control Module. The Navigation Control Module is responsible for managing the navigation system in the vehicle, including GPS functions, mapping, and routing. When communication is lost with this module, it can result in the navigation system not working properly or not working at all. This can lead to a lack of navigation guidance for the driver, which can be inconvenient and potentially dangerous, especially in unfamiliar areas.

OBDII Code U0163 - Lost Communication with Navigation Control Module
U0163 Code - Lost Communication with Navigation Control Module

Common Causes of U0163

  1. Wiring or connection issues
  2. Faulty Navigation Control Module
  3. Software glitch in the navigation system
  4. Communication bus failure
  5. Main computer system malfunction

Symptoms of U0163

  1. Navigation system not working or displaying inaccurate information
  2. Loss of GPS signal
  3. Error messages related to the navigation system
  4. Infotainment system glitches or malfunctions
  5. Other electronic systems in the vehicle not functioning properly

How to Fix U0163

  1. Begin by checking the wiring and connections related to the Navigation Control Module to ensure there are no loose or damaged connections.
  2. Use a diagnostic scanner to attempt to communicate with the Navigation Control Module and determine if it is responding.
  3. If the module is not responding, it may need to be replaced with a new one and reprogrammed to work with the vehicle's system.
  4. Check for any software updates or reflash options for the navigation system to address any potential software glitches.
  5. Test the system after repairs to ensure that communication is restored and all functions are working properly.

Cost to Fix U0163

The cost of repairing a lost communication issue with the Navigation Control Module can vary depending on the exact cause of the problem. In general, the cost of replacing the Navigation Control Module itself can range from $200 to $600, including parts and labor. Additional costs may be incurred if wiring repairs or software updates are needed. It's important to factor in diagnostic time and labor rates, which can vary but typically range between $80 and $150 per hour. Be sure to consult with a professional mechanic for a more accurate estimate based on your specific vehicle make and model.

What does this mean?

Tech Notes for U0163

When there are problems with the way different systems in a vehicle communicate with each other using a technology called Controller Area Network (CAN) communication, Diagnostic Trouble Codes (DTC) are displayed. These codes can be caused by issues with the main bus or branch of the communication network, or with the Electronic Control Units (ECUs) and sensors that make up the different systems. If you see code for both the CAN communication problems and internal or power source problems at the same time, you should focus on fixing the internal or power source problems first.

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Code U0163 Information for Specific Makes

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 U0163 Code

1. What are the common symptoms of OBDII code U0163 (Lost Communication with Navigation Control Module)?

- Common symptoms include a non-functional navigation system, loss of GPS signal, and in some cases, issues with other vehicle systems like the audio or climate control.

2. What are the possible causes of the U0163 code?

- The U0163 code can be triggered by a faulty navigation control module, damaged wiring or connectors, software issues, or a malfunction in the communication network.

3. How can I diagnose the U0163 code?

- Diagnosing the U0163 code involves checking the navigation control module for power and ground, inspecting the wiring for damage, and using a scan tool to retrieve additional codes and data related to the communication issue.

4. Can I still drive my vehicle with the U0163 code?

- In most cases, it is safe to drive the vehicle with the U0163 code, especially if no other critical systems are affected. However, it is recommended to address the issue promptly to avoid potential complications.

5. How can I repair the U0163 code?

- Repairing the U0163 code may involve repairing or replacing the navigation control module, fixing damaged wiring or connectors, updating software, or resetting the communication network.

6. Will resetting the U0163 code make it go away permanently?

- Resetting the U0163 code may clear it temporarily, but if the underlying issue is not addressed, the code is likely to return. It is important to diagnose and repair the root cause of the communication problem.

7. Can a DIY enthusiast fix the U0163 code?

- DIY enthusiasts with automotive repair experience and access to necessary tools like a scan tool and wiring diagrams may be able to diagnose and repair the U0163 code. However, complex issues may require professional assistance.

8. How much does it cost to repair the U0163 code?

- The cost of repairing the U0163 code can vary depending on the underlying cause, parts needed for replacement, labor charges, and whether the repair is done at a dealership or an independent mechanic. Costs can range from a few hundred to over a thousand dollars.

9. Will the U0163 code cause my vehicle to fail an emissions test?

- The U0163 code itself is not directly related to emissions, so it should not cause your vehicle to fail an emissions test. However, it is still important to address the code to ensure proper functioning of the affected systems.

10. How soon should I address the U0163 code once it appears?

- It is recommended to address the U0163 code as soon as possible to prevent further issues with the navigation system and other related systems. Ignoring the code could lead to more significant problems down the line.

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