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U0163 2013 Toyota RAV4 Code - Lost Communication with Navigation Control Module

Quick Answer

The Controller Area Network (CAN) is a standard bus system in vehicles that enables the connection of automotive devices without the need for a host computer. Common causes include Faulty Controller Area Network (CAN) Communication System, Faulty Navigation Control Module, Navigation Control Module harness is open or shorted. 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 2013 Toyota RAV4 indicates Lost Communication with Navigation Control Module.
Common causes: Common causes include Faulty Controller Area Network (CAN) Communication System, Faulty Navigation Control Module, Navigation Control Module harness is open or shorted.
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 232

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 27, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code U0163 2013 Toyota RAV4 Description

The Controller Area Network (CAN) is a standard bus system in vehicles that enables the connection of automotive devices without the need for a host computer. The exchange of operating information and commands among devices is facilitated by pre-programmed information about the required message exchange on the serial data circuits. Communication is carried out using two dedicated wires, known as CAN high and CAN low, with both lines carrying 2.5V when the CAN bus is in idle mode. During the transmission of data bits, the CAN high line increases to 3.75V while the CAN low drops to 1.25V, creating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Navigation Control Module has not been received.

OBDII Code U0163 2013 Toyota RAV4 - Lost Communication with Navigation Control Module - AutoCodes.com — U0163 2013 Toyota RAV4 Code - Lost Communication with Navigation Control Module

What does this mean?

What are the Possible Causes of the DTC U0163 2013 Toyota RAV4?

Faulty Controller Area Network (CAN) Communication System
Faulty Navigation Control Module
Navigation Control Module harness is open or shorted
Navigation Control Module circuit poor electrical connection

How to Fix the DTC U0163 2013 Toyota RAV4?

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 does this mean?

Code Tech Notes

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0163 2013 Toyota RAV4 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.

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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 U0163 2013 Toyota RAV4 Code

1. What does the OBDII code U0163 mean on a 2013 Toyota RAV4?

The U0163 code indicates a communication problem between the vehicle's onboard diagnostic system and the Navigation Control Module.

2. What are the common symptoms of a U0163 code in a 2013 Toyota RAV4?

Common symptoms include issues with the navigation system, such as freezing, loss of GPS signal, or the screen displaying errors or going blank.

3. What are the possible causes of a U0163 code in a 2013 Toyota RAV4?

Possible causes include a faulty Navigation Control Module, wiring or connection issues, software glitches, or a malfunction in the vehicle's communication network.

4. How can I diagnose a U0163 code in my 2013 Toyota RAV4?

Diagnosis typically involves using a professional OBDII scanner to read the code, checking the connections to the Navigation Control Module, and conducting a thorough inspection of the wiring and related components.

5. Can a U0163 code be fixed without professional help on a 2013 Toyota RAV4?

While some basic checks like ensuring connections are secure can be done at home, resolving the underlying issue causing the U0163 code may require professional diagnostic tools and expertise.

6. Is it safe to continue driving with a U0163 code present in a 2013 Toyota RAV4?

It is generally not recommended to drive with unresolved U0163 code as it can affect the functionality of the navigation system and potentially indicate other communication issues within the vehicle.

7. How much does it typically cost to repair a U0163 code on a 2013 Toyota RAV4?

Repair costs can vary depending on the exact cause of the code, but it may involve replacing the Navigation Control Module, addressing wiring issues, or updating software, which can range from a few hundred to over a thousand dollars.

8. Can a U0163 code in a 2013 Toyota RAV4 be triggered by a dead battery?

Yes, a dead or disconnected battery can sometimes cause communication errors leading to a U0163 code. Reconnecting or replacing the battery and clearing the code may resolve the issue.

9. Are there any preventive measures to avoid a U0163 code in a 2013 Toyota RAV4?

Regularly checking and maintaining the vehicle's electrical connections, including those related to the navigation system, can help prevent communication issues that trigger the U0163 code.

10. Will resetting the U0163 code make it go away permanently on a 2013 Toyota RAV4?

Resetting the code may clear it temporarily, but if the underlying issue causing the communication problem with the Navigation Control Module is not resolved, the U0163 code is likely to reappear.