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U1117 2013 Toyota RAV4 Code - Lost Communication with Accessory Gateway

Quick Answer

The U1117 diagnostic trouble code (DTC) for a 2013 Toyota RAV4 indicates that the vehicle has lost communication with the Accessory Gateway module. Common causes include Wiring faults or breaks in the communication network, Loose connections or poor electrical connections, Faulty Accessory Gateway 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
U1117 2013 Toyota RAV4 indicates Lost Communication with Accessory Gateway.
Common causes
Common causes include Wiring faults or breaks in the communication network, Loose connections or poor electrical connections, Faulty Accessory Gateway 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code U1117 2013 Toyota RAV4 Description

The U1117 diagnostic trouble code (DTC) for a 2013 Toyota RAV4 indicates that the vehicle has lost communication with the Accessory Gateway module. The Accessory Gateway is a crucial component in the vehicle's network system that facilitates communication between various electronic modules and accessories. When this communication is disrupted or lost, it can lead to a range of issues affecting the vehicle's performance and functionality.

OBDII Code U1117 2013 Toyota RAV4 - Lost Communication with Accessory Gateway
U1117 2013 Toyota RAV4 Code - Lost Communication with Accessory Gateway

Common Causes of U1117 2013 Toyota RAV4

  1. Wiring faults or breaks in the communication network
  2. Loose connections or poor electrical connections
  3. Faulty Accessory Gateway module
  4. Issues with other modules in the vehicle's network
  5. Water damage or corrosion affecting electronic components

Symptoms of U1117 2013 Toyota RAV4

  1. Non-responsive controls for entertainment system or climate control
  2. Erratic behavior of accessories such as lights or wipers
  3. Warning lights illuminated on the dashboard
  4. Keyless entry system not functioning properly
  5. Total system failure of accessories controlled by the Accessory Gateway

How to Fix U1117 2013 Toyota RAV4

  1. Perform a comprehensive diagnostic scan to identify the specific cause of the communication loss
  2. Inspect wiring harnesses and connectors for any faults or damage
  3. Test the Accessory Gateway module for proper functionality
  4. Address any issues with related modules that may be impacting communication
  5. Clear the DTC and re-establish communication between modules if the issue is resolved

Cost to Fix U1117 2013 Toyota RAV4

The typical repair costs for addressing a U1117 code in a 2013 Toyota RAV4 can vary depending on the specific cause of the communication loss. In general, parts for this repair may range from $100 to $500, while labor costs can range from $80 to $150 per hour. The total cost could therefore be anywhere from $200 to $800 or more, depending on the extent of the repair needed. It's recommended to consult with a qualified mechanic or dealership for a precise estimate based on your vehicle's specific condition and location.

What does this mean?

Tech Notes for U1117 2013 Toyota RAV4

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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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 U1117 2013 Toyota RAV4 Code

1. What does the OBDII code U1117 mean on a 2013 Toyota RAV4?

The code U1117 indicates a communication problem between the vehicle's control modules and the Accessory Gateway module.

2. What are the common symptoms of U1117 code in a 2013 Toyota RAV4?

Common symptoms include issues with the power windows, door locks, interior lights, and other accessories controlled by the Accessory Gateway module.

3. What are the possible causes of the U1117 code in a 2013 Toyota RAV4?

Possible causes include a faulty Accessory Gateway module, wiring issues, loose connections, or a malfunctioning control module.

4. How can I diagnose the U1117 code on my 2013 Toyota RAV4?

Diagnosing the U1117 code typically involves checking the wiring and connections related to the Accessory Gateway module, as well as using a diagnostic tool to communicate with the control modules.

5. Can I still drive my 2013 Toyota RAV4 with the U1117 code present?

It is not recommended to drive the vehicle with the U1117 code present, as it may affect the functionality of important accessories and systems in the vehicle.

6. How can I repair the U1117 code on my 2013 Toyota RAV4?

Repairing the U1117 code may involve replacing the Accessory Gateway module, repairing any damaged wiring or connections, and clearing the code with a diagnostic tool.

7. Will resetting the U1117 code make it go away permanently?

Resetting the code may temporarily clear it, but if the underlying issue causing the code is not addressed, it is likely to reappear.

8. Can a DIY enthusiast fix the U1117 code on a 2013 Toyota RAV4?

While some basic troubleshooting steps can be taken by a DIY enthusiast, diagnosing and repairing the U1117 code may require specialized tools and expertise.

9. How much does it cost to repair the U1117 code on a 2013 Toyota RAV4?

The cost of repairing the U1117 code can vary depending on the specific underlying issue, the labor rates in your area, and whether new parts are needed.

10. Is the U1117 code a common issue in the 2013 Toyota RAV4?

While not extremely common, the U1117 code can occur in the 2013 Toyota RAV4 due to communication issues with the Accessory Gateway module.

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