AutoCodes – Toyota – U0155 2018 Toyota RAV4

U0155 2018 Toyota RAV4 Code - Lost Communication with Instrument Panel Cluster 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 Instrument Panel Cluster Control Module, Instrument Panel Cluster 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: U0155 2018 Toyota RAV4 indicates Lost Communication with Instrument Panel Cluster Control Module.
Common causes: Common causes include Faulty Controller Area Network (CAN) Communication System, Faulty Instrument Panel Cluster Control Module, Instrument Panel Cluster 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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

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

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
Step-by-Step Diagnostic Guide
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 U0155 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 Instrument Panel Cluster Control Module has not been received.

OBDII Code U0155 2018 Toyota RAV4 - Lost Communication with Instrument Panel Cluster Control Module - AutoCodes.com — U0155 2018 Toyota RAV4 Code - Lost Communication with Instrument Panel Cluster Control Module

What does this mean?

What are the Possible Causes of the DTC U0155 2018 Toyota RAV4?

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

How to Fix the DTC U0155 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 U0155 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.

Need more information about the U0155 2018 Toyota RAV4 code?

Need more information on how to fix the U0155 2018 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0155 2018 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 U0155 2018 Toyota RAV4 Code

1. What does the OBDII code U0155 in a 2018 Toyota RAV4 indicate?

The U0155 code in a 2018 Toyota RAV4 indicates a communication problem between the vehicle's engine control module (ECM) and the instrument panel cluster control module.

2. What are common symptoms of the U0155 code in a 2018 Toyota RAV4?

Common symptoms of the U0155 code in a 2018 Toyota RAV4 include loss of communication with the instrument panel cluster, malfunctioning gauges or warning lights, and potential issues with the vehicle's overall performance.

3. What are possible causes of the U0155 code in a 2018 Toyota RAV4?

Possible causes of the U0155 code in a 2018 Toyota RAV4 include faulty wiring or connectors, a malfunctioning instrument panel cluster control module, a defective ECM, or a communication bus error.

4. How can I diagnose the U0155 code in a 2018 Toyota RAV4?

Diagnosing the U0155 code in a 2018 Toyota RAV4 involves using a diagnostic scanner to retrieve the code, checking for any related codes, inspecting the wiring and connectors, and testing the instrument panel cluster control module and ECM for proper functionality.

5. Can the U0155 code in a 2018 Toyota RAV4 be fixed at home?

Fixing the U0155 code in a 2018 Toyota RAV4 may be challenging to do at home, as it requires proper diagnostic tools and technical knowledge. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

6. Is it safe to drive with the U0155 code in a 2018 Toyota RAV4?

It is not recommended to drive a 2018 Toyota RAV4 with the U0155 code present, as it may lead to inaccurate instrument readings or potential performance issues. It is best to address the underlying problem promptly.

7. How much does it typically cost to repair the U0155 code in a 2018 Toyota RAV4?

The cost of repairing the U0155 code in a 2018 Toyota RAV4 can vary depending on the root cause of the issue, the extent of the repairs needed, and labor rates. It is advisable to obtain multiple quotes from reputable repair shops.

8. Are there any recalls related to the U0155 code in a 2018 Toyota RAV4?

Recalls related to the U0155 code in a 2018 Toyota RAV4 are specific to VIN numbers and may vary. It is recommended to check with a Toyota dealership or visit the National Highway Traffic Safety Administration (NHTSA) website for any relevant recall information.

9. How can I prevent the U0155 code from recurring in my 2018 Toyota RAV4?

To prevent the U0155 code from recurring in a 2018 Toyota RAV4, it is essential to perform regular maintenance checks, address any wiring or connector issues promptly, and ensure proper functioning of the instrument panel cluster control module and ECM.

10. Can a software update fix the U0155 code in a 2018 Toyota RAV4?

In some cases, a software update provided by the manufacturer may address the U0155 code in a 2018 Toyota RAV4 if the issue is related to communication protocols. It is advisable to consult with a Toyota dealership or qualified technician for guidance.