AutoCodes – Toyota – U0126 2015 Toyota RAV4

U0126 2015 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 2015 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 344

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 26, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U0126 2015 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 2015 Toyota RAV4 - Lost Communication with Steering Angle Sensor Module - AutoCodes.com — U0126 2015 Toyota RAV4 Code - Lost Communication with Steering Angle Sensor Module

What does this mean?

What are the Possible Causes of the DTC U0126 2015 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 2015 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 2015 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.

Need more information about the U0126 2015 Toyota RAV4 code?

Need more information on how to fix the U0126 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0126 2015 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area

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 2015 Toyota RAV4 Code

1. What are the common symptoms of OBDII code U0126 in a 2015 Toyota RAV4?

The common symptoms include the traction control light or stability control warning light illuminating on the dashboard, steering wheel feeling heavy or unresponsive, and potential issues with the vehicle's stability control system.

2. What does the OBDII code U0126 indicate in a 2015 Toyota RAV4?

The code U0126 indicates a "Lost Communication with Steering Angle Sensor Module" error, which means that the vehicle's onboard computer is unable to communicate with the steering angle sensor module.

3. What are the possible causes of the U0126 code in a 2015 Toyota RAV4?

Possible causes include a faulty steering angle sensor module, damaged wiring or connectors related to the module, a software glitch in the vehicle's computer system, or a weak battery affecting communication between modules.

4. How can I diagnose the U0126 code in my 2015 Toyota RAV4?

Diagnosis typically involves using an OBDII scanner to retrieve the specific error code, checking the wiring and connectors around the steering angle sensor module, and testing the module itself for proper function.

5. Can I continue driving my 2015 Toyota RAV4 with the U0126 code present?

It is not recommended to continue driving the vehicle with the U0126 code present, as it may affect the proper functioning of the stability control system and compromise overall safety.

6. How can the U0126 code in a 2015 Toyota RAV4 be repaired?

Repair options may include replacing the faulty steering angle sensor module, repairing damaged wiring or connectors, resetting the vehicle's computer system, or updating software as recommended by the manufacturer.

7. Is it possible to reset the U0126 code in a 2015 Toyota RAV4 without professional help?

While resetting the code temporarily may be possible by disconnecting the battery, it is essential to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

8. How much does it typically cost to repair the U0126 code in a 2015 Toyota RAV4?

The cost of repairing the U0126 code can vary depending on the specific cause, parts needed for replacement, and labor costs. It is recommended to consult a professional mechanic for an accurate estimate.

9. Can a DIY enthusiast with basic automotive knowledge fix the U0126 code in a 2015 Toyota RAV4?

Depending on the cause of the code, some DIY enthusiasts with experience in automotive repairs may be able to address the issue, such as checking and replacing damaged wiring or connectors. However, more complex repairs may require professional assistance.

10. How can I prevent the U0126 code from appearing in my 2015 Toyota RAV4 in the future?

Regular maintenance, checking the vehicle's battery health, and addressing any warning lights promptly can help prevent the U0126 code from appearing in the future.