AutoCodes – Chevrolet – U0155 Chevrolet

U0155 Chevrolet Code - Lost Communication With Instrument Panel Cluster Control Module

Quick Answer

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include 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. 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 Chevrolet indicates Lost Communication With Instrument Panel Cluster Control Module.
Common causes: Common causes include 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.
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 9,302

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 Apr 01, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0155 Chevrolet Description

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Instrument Panel Cluster Control Module has not been received.

OBDII Code U0155 Chevrolet - Lost Communication With Instrument Panel Cluster Control Module - AutoCodes.com — U0155 Chevrolet Code - Lost Communication With Instrument Panel Cluster Control Module

What does this mean?

What are the Possible Causes of the DTC U0155 Chevrolet?

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 Chevrolet?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0155 Chevrolet 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 Chevrolet Code

1. What are the common symptoms of OBDII code U0155 in a Chevrolet related to lost communication with the Instrument Panel Cluster Control Module?

- Common symptoms include loss of instrument cluster functionality, inaccurate or erratic gauge readings, warning lights staying on, and potential issues with vehicle starting.

2. What are some possible causes of OBDII code U0155 in a Chevrolet indicating a communication problem with the Instrument Panel Cluster Control Module?

- Possible causes include a faulty instrument cluster control module, damaged wiring or connectors, software issues, a blown fuse, or a problem with the vehicle's network communication system.

3. How can I diagnose the OBDII code U0155 in a Chevrolet related to lost communication with the Instrument Panel Cluster Control Module?

- Diagnosis typically involves using a diagnostic scan tool to retrieve the specific code, checking for other related codes, inspecting wiring and connectors for damage, testing fuses, and verifying communication with other modules.

4. What are some repair tips for addressing OBDII code U0155 in a Chevrolet due to lost communication with the Instrument Panel Cluster Control Module?

- Repair tips may include checking and repairing any damaged wiring or connectors, replacing the instrument cluster control module if necessary, ensuring proper software updates are applied, and resetting the system.

5. Can OBDII code U0155 in a Chevrolet related to lost communication with the Instrument Panel Cluster Control Module be fixed without professional help?

- While some basic troubleshooting like checking fuses and connectors can be done by DIY enthusiasts, diagnosing and repairing complex communication issues may require professional expertise and specialized tools.

6. Is it safe to continue driving a Chevrolet with the OBDII code U0155 indicating lost communication with the Instrument Panel Cluster Control Module?

- It is generally not recommended to drive the vehicle with communication issues related to critical modules like the instrument cluster control module, as it may impact important functions and safety systems.

7. How much does it typically cost to repair OBDII code U0155 in a Chevrolet due to lost communication with the Instrument Panel Cluster Control Module?

- Repair costs can vary depending on the specific issue causing the communication problem, but they may range from a few hundred to a few thousand dollars, including parts and labor.

8. Are there any preventative measures to avoid encountering OBDII code U0155 in a Chevrolet related to communication problems with the Instrument Panel Cluster Control Module?

- Regular vehicle maintenance, such as checking for loose connections, ensuring proper software updates, and promptly addressing any warning lights or unusual behavior, can help prevent communication issues.

9. Can a DIY enthusiast reset the OBDII code U0155 in a Chevrolet caused by lost communication with the Instrument Panel Cluster Control Module?

- While clearing the code with a diagnostic scan tool is possible, it is important to address the underlying communication issue to prevent the code from reoccurring. Professional diagnosis and repair may be needed.

10. Will disconnecting the battery reset the OBDII code U0155 in a Chevrolet associated with lost communication with the Instrument Panel Cluster Control Module?

- Disconnecting the battery may clear the code temporarily, but if the underlying communication problem persists, the code is likely to return. It is crucial to diagnose and address the root cause of the issue.