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U0125 2016 Toyota RAV4 Code - Lost Communication with Yaw Rate Sensor 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 Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly), Yaw Rate and Acceleration Sensor 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: U0125 2016 Toyota RAV4 indicates Lost Communication with Yaw Rate Sensor Module.
Common causes: Common causes include Faulty Controller Area Network (CAN) Communication System, Faulty Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly), Yaw Rate and Acceleration Sensor 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 282

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Mar 25, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code U0125 2016 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 Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly) has not been received.

OBDII Code U0125 2016 Toyota RAV4 - Lost Communication with Yaw Rate Sensor Module - AutoCodes.com — U0125 2016 Toyota RAV4 Code - Lost Communication with Yaw Rate Sensor Module

What does this mean?

What are the Possible Causes of the DTC U0125 2016 Toyota RAV4?

Faulty Controller Area Network (CAN) Communication System
Faulty Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly)
Yaw Rate and Acceleration Sensor harness is open or shorted
Yaw Rate and Acceleration Sensor circuit poor electrical connection

How to Fix the DTC U0125 2016 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 U0125 2016 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 U0125 2016 Toyota RAV4 Code

1. What does the OBDII code U0125 mean for a 2016 Toyota RAV4?

The code U0125 indicates a "Lost Communication with Yaw Rate Sensor Module" error in the vehicle's onboard diagnostic system.

2. What are the common symptoms of a U0125 code in a Toyota RAV4?

Common symptoms of a U0125 code may include the ABS warning light, traction control light, or stability control light illuminating on the dashboard. Additionally, the vehicle may experience issues with these systems' functionality.

3. What are the possible causes of a U0125 code in a 2016 Toyota RAV4?

Potential causes of a U0125 code include a faulty yaw rate sensor module, damaged wiring or connections related to the sensor, or a communication error within the vehicle's network.

4. How can I diagnose a U0125 code in my Toyota RAV4?

Diagnosing a U0125 code typically involves using a diagnostic scanner to retrieve the specific fault codes stored in the vehicle's system. Additionally, inspecting the wiring and connections to the yaw rate sensor module is recommended.

5. Can I drive my Toyota RAV4 with a U0125 code?

It is not advisable to drive your RAV4 with a U0125 code present, as it may affect the performance of crucial safety systems like ABS, traction control, and stability control. Prompt attention to the issue is recommended.

6. How can I repair a U0125 code in my 2016 Toyota RAV4?

Repairing a U0125 code may involve replacing the yaw rate sensor module, repairing any damaged wiring or connections, or addressing communication issues within the vehicle's network. It is recommended to consult a professional mechanic for proper diagnosis and repair.

7. Is it possible to reset a U0125 code in a Toyota RAV4?

Resetting the U0125 code can be done using a diagnostic scanner that is capable of clearing fault codes. However, it is crucial to address the underlying issue causing the code before clearing it to prevent future problems.

8. Are there any safety concerns associated with a U0125 code in a Toyota RAV4?

A U0125 code related to the yaw rate sensor module can impact the vehicle's stability control and traction control systems, potentially affecting the handling and safety of the vehicle. Prompt attention to the issue is essential for safe driving.

9. Can a DIY enthusiast fix a U0125 code in a Toyota RAV4?

While some basic troubleshooting like checking connections and wiring can be done by a DIY enthusiast, diagnosing and repairing the root cause of a U0125 code may require specialized tools and expertise. It is advisable to seek professional help for accurate diagnosis and repair.

10. How much does it cost to repair a U0125 code in a 2016 Toyota RAV4?

The cost of repairing a U0125 code can vary depending on the specific cause of the issue, the parts needed for repair, and labor costs. It is recommended to obtain a diagnosis from a mechanic to determine the exact cost of addressing the problem.