AutoCodes – Toyota – U0126 2016 Toyota RAV4

U0126 2016 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 2016 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 271

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 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 Steering Angle Sensor Module has not been received.

OBDII Code U0126 2016 Toyota RAV4 - Lost Communication with Steering Angle Sensor Module - AutoCodes.com — U0126 2016 Toyota RAV4 Code - Lost Communication with Steering Angle Sensor Module

What does this mean?

What are the Possible Causes of the DTC U0126 2016 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 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 U0126 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 U0126 2016 Toyota RAV4 Code

1. What does the OBDII code U0126 on a 2016 Toyota RAV4 mean?

The U0126 code indicates a communication problem between the vehicle's onboard computer and the Steering Angle Sensor Module.

2. What are the common symptoms of the U0126 code in a 2016 Toyota RAV4?

Common symptoms include the malfunction indicator light (MIL) illuminating on the dashboard, loss of power steering functionality, and potential issues with stability control systems.

3. What are the possible causes of the U0126 code in a 2016 Toyota RAV4?

Potential causes include damaged wiring or connectors, a faulty Steering Angle Sensor Module, a malfunctioning CAN bus communication system, or a problem with the vehicle's main computer.

4. How can I diagnose the U0126 code in my 2016 Toyota RAV4?

Diagnosis typically involves using an OBDII scanner to read the code and further testing of the wiring, connectors, and components related to the Steering Angle Sensor Module.

5. Can I continue driving my 2016 Toyota RAV4 with the U0126 code?

It is not recommended to drive the vehicle with the U0126 code present, as it may lead to safety issues due to potential malfunctions in the steering and stability control systems.

6. How can I repair the U0126 code in my 2016 Toyota RAV4?

Repair options may include repairing or replacing damaged wiring, connectors, or components related to the Steering Angle Sensor Module, as well as addressing any issues with the CAN bus communication system.

7. Is it necessary to reset the trouble codes after repairing the U0126 code in a 2016 Toyota RAV4?

Yes, it is recommended to clear the trouble codes after repairing the U0126 code to reset the vehicle's computer system and ensure proper functioning.

8. Can a DIY enthusiast fix the U0126 code in a 2016 Toyota RAV4?

While some basic troubleshooting steps can be performed by DIY enthusiasts, diagnosing and repairing the U0126 code may require specialized tools and knowledge, making it advisable to consult a professional mechanic.

9. How much does it typically cost to repair the U0126 code in a 2016 Toyota RAV4?

The cost of repairing the U0126 code can vary depending on the underlying cause and the specific parts or components that need to be replaced, so it's recommended to obtain a diagnosis and estimate from a qualified mechanic.

10. How can I prevent the U0126 code from recurring in my 2016 Toyota RAV4?

Regular maintenance, including checking the wiring and connectors related to the Steering Angle Sensor Module, can help prevent the U0126 code from recurring in the future.