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U0155 2014 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 2014 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.

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Code Popularity 296

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
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Code U0155 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 Instrument Panel Cluster Control Module has not been received.

OBDII Code U0155 2014 Toyota RAV4 - Lost Communication with Instrument Panel Cluster Control Module - AutoCodes.com — U0155 2014 Toyota RAV4 Code - Lost Communication with Instrument Panel Cluster Control Module

What does this mean?

What are the Possible Causes of the DTC U0155 2014 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 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 U0155 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 U0155 2014 Toyota RAV4 Code

1. What does the OBDII code U0155 for a 2014 Toyota RAV4 mean?

This code indicates a "Lost Communication with Instrument Panel Cluster Control Module" error.

2. What are common symptoms associated with OBDII code U0155 in a 2014 Toyota RAV4?

Common symptoms include issues with the instrument cluster display, malfunctioning gauges, warning lights staying on, and potential problems with other electronic systems.

3. What are possible causes of the U0155 code in a 2014 Toyota RAV4?

Possible causes include faulty wiring or connections, a defective instrument panel cluster control module, a malfunctioning CAN bus communication system, or a software-related issue.

4. How can I diagnose the U0155 code in my 2014 Toyota RAV4?

Diagnosis typically involves checking the wiring and connections related to the instrument panel cluster control module, performing a CAN bus communication test, and using a diagnostic scanner to retrieve additional fault codes and data.

5. How can I repair the U0155 code in my 2014 Toyota RAV4?

Repair options may include repairing or replacing damaged wiring, ensuring proper connections, replacing the instrument panel cluster control module if necessary, updating software, or addressing any underlying issues with the CAN bus system.

6. Can I drive my 2014 Toyota RAV4 with the U0155 code present?

It is not recommended to drive your vehicle with the U0155 code present, as it can lead to inaccurate readings on the instrument cluster and potentially affect other electronic systems in the vehicle.

7. Is the U0155 code in a 2014 Toyota RAV4 a serious issue?

While the U0155 code is not typically considered a critical issue that affects the drivability of the vehicle, it should be addressed promptly to ensure the proper functioning of the instrument cluster and related systems.

8. How much does it cost to repair the U0155 code in a 2014 Toyota RAV4?

The cost of repairing the U0155 code can vary depending on the specific cause of the issue, the required parts, and labor costs. It is recommended to consult with a qualified mechanic for an accurate estimate.

9. Can I reset the U0155 code in my 2014 Toyota RAV4 without repairing the issue?

While you can clear the code using an OBDII scanner, it is important to address the underlying problem causing the code to prevent it from reoccurring.

10. How often does the U0155 code occur in a 2014 Toyota RAV4?

The U0155 code can occur sporadically or persistently, depending on the root cause of the communication loss with the instrument panel cluster control module. Regular maintenance and prompt repairs can help prevent its occurrence.