AutoCodes – Toyota – U0131 2018 Toyota RAV4

U0131 2018 Toyota RAV4 Code - Lost Communication with Power Steering Control 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 Power Steering Control Module, Power Steering Control 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: U0131 2018 Toyota RAV4 indicates Lost Communication with Power Steering Control Module.
Common causes: Common causes include Faulty Controller Area Network (CAN) Communication System, Faulty Power Steering Control Module, Power Steering Control 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 455

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 27, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code U0131 2018 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 Power Steering Control Module has not been received.

OBDII Code U0131 2018 Toyota RAV4 - Lost Communication with Power Steering Control Module - AutoCodes.com — U0131 2018 Toyota RAV4 Code - Lost Communication with Power Steering Control Module

What does this mean?

What are the Possible Causes of the DTC U0131 2018 Toyota RAV4?

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

How to Fix the DTC U0131 2018 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 U0131 2018 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 U0131 2018 Toyota RAV4 Code

1. What are the common symptoms of OBDII code U0131 in a 2018 Toyota RAV4 related to the Power Steering Control Module?

The common symptoms include loss of power steering assistance, illuminated warning lights on the dashboard, and difficulty steering the vehicle.

2. What does the OBDII code U0131 indicating "Lost Communication with Power Steering Control Module" mean in a 2018 Toyota RAV4?

This code indicates that the vehicle's onboard computer is unable to communicate with the Power Steering Control Module, leading to potential power steering issues.

3. What are the possible causes of OBDII code U0131 in a 2018 Toyota RAV4?

Possible causes include a faulty power steering control module, damaged wiring or connectors, low battery voltage, software issues, or a malfunction in the vehicle's communication network.

4. How can I diagnose the OBDII code U0131 in my 2018 Toyota RAV4?

Diagnosis typically involves using a diagnostic scanner to retrieve the specific trouble code, checking the power steering control module for any visible damage, inspecting wiring connections for looseness or corrosion, and testing the battery voltage.

5. Can I still drive my 2018 Toyota RAV4 with the U0131 code present?

It is not recommended to drive the vehicle with the U0131 code present, as it can affect the power steering functionality and compromise safety. It is advisable to have the issue diagnosed and repaired promptly.

6. Is it possible to repair the U0131 code in a 2018 Toyota RAV4 without professional help?

While some DIY enthusiasts may attempt to address the issue by checking connections and fuses, it is recommended to seek professional help for a thorough diagnosis and proper repair of the power steering control module.

7. How much does it typically cost to repair the U0131 code in a 2018 Toyota RAV4?

The cost of repairing the U0131 code can vary depending on the specific cause of the issue, labor rates in your area, and whether any parts need to be replaced. It is advisable to obtain quotes from reputable repair shops.

8. Will resetting the trouble codes make the U0131 code disappear permanently?

Resetting the trouble codes may temporarily clear the U0131 code, but if the underlying issue with the power steering control module or communication network is not addressed, the code is likely to reappear.

9. Can a dead battery cause the U0131 code to appear in a 2018 Toyota RAV4?

Yes, a dead or low battery voltage can potentially trigger the U0131 code due to communication disruptions between the power steering control module and the vehicle's computer systems.

10. How can I prevent the U0131 code from recurring in my 2018 Toyota RAV4 after repair?

To prevent the U0131 code from reoccurring, ensure that all repairs are conducted by a qualified technician, address any underlying electrical issues, follow regular maintenance schedules, and promptly address any warning lights or symptoms related to the power steering system.