AutoCodes – Toyota – U0126 2014 Toyota RAV4

U0126 2014 Toyota RAV4 Code - Lost Communication with Steering Angle 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 Steering Angle Sensor Module, Steering Angle Sensor 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: U0126 2014 Toyota RAV4 indicates Lost Communication with Steering Angle Sensor Module.
Common causes: Common causes include Faulty Controller Area Network (CAN) Communication System, Faulty Steering Angle Sensor Module, Steering Angle Sensor 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 321

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 26, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code U0126 2014 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 Steering Angle Sensor Module has not been received.

OBDII Code U0126 2014 Toyota RAV4 - Lost Communication with Steering Angle Sensor Module - AutoCodes.com — U0126 2014 Toyota RAV4 Code - Lost Communication with Steering Angle Sensor Module

What does this mean?

What are the Possible Causes of the DTC U0126 2014 Toyota RAV4?

Faulty Controller Area Network (CAN) Communication System
Faulty Steering Angle Sensor Module
Steering Angle Sensor Module harness is open or shorted
Steering Angle Sensor Module circuit poor electrical connection

How to Fix the DTC U0126 2014 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 U0126 2014 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 U0126 2014 Toyota RAV4 Code

1. What does the OBDII code U0126 on a 2014 Toyota RAV4 indicate?

The code U0126 indicates a "Lost Communication with Steering Angle Sensor Module" error.

2. What are the common symptoms of U0126 in a 2014 Toyota RAV4?

Common symptoms may include issues with the vehicle's stability control system, traction control system, or steering responsiveness.

3. What are the possible causes of the U0126 code in a 2014 Toyota RAV4?

Possible causes may include a faulty steering angle sensor module, damaged wiring or connectors, a software glitch, or a malfunctioning control module.

4. How can I diagnose the U0126 code in my 2014 Toyota RAV4?

Diagnosis typically involves using a professional OBDII scanner to retrieve the specific error codes, checking the wiring and connections related to the steering angle sensor module, and testing the sensor itself.

5. What should I do if I encounter the U0126 code in my 2014 Toyota RAV4?

If you encounter the U0126 code, it is recommended to have the vehicle inspected by a qualified mechanic to determine the exact cause and necessary repairs.

6. Can I continue driving my 2014 Toyota RAV4 with the U0126 code present?

It is not advisable to continue driving with the U0126 code present, as it may affect the vehicle's stability and safety systems.

7. How much does it typically cost to repair the U0126 code in a 2014 Toyota RAV4?

The cost of repairs for the U0126 code can vary depending on the exact cause of the issue, but it may involve replacing the steering angle sensor module or repairing wiring connections.

8. Are there any DIY tips for fixing the U0126 code in a 2014 Toyota RAV4?

DIY repairs for the U0126 code are not recommended due to the complexity of the steering angle sensor system. It is best to seek professional help for accurate diagnosis and repairs.

9. Will resetting the OBDII code clear the U0126 error in my 2014 Toyota RAV4?

Resetting the code may temporarily clear the error, but it is essential to address the underlying issue causing the U0126 code to prevent it from reoccurring.

10. How can I prevent the U0126 code from appearing in my 2014 Toyota RAV4 in the future?

Regular maintenance and inspections of the vehicle's steering angle sensor system, as well as addressing any issues promptly, can help prevent the U0126 code from appearing in the future.