Engine-CodesGeneric – U0156

U0156 Code - Lost Communication With Information Center Module 'A'

Quick Answer

The U0156 code indicates that the vehicle's communication with the Information Center Module 'A' has been lost. Common causes include Faulty wiring or connectors leading to the Information Center Module 'A', Malfunctioning Information Center Module 'A', Loose or damaged connections within the communication network. 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
U0156 indicates Lost Communication With Information Center Module 'A'.
Common causes
Common causes include Faulty wiring or connectors leading to the Information Center Module 'A', Malfunctioning Information Center Module 'A', Loose or damaged connections within the communication network.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code U0156 Description

The U0156 code indicates that the vehicle's communication with the Information Center Module 'A' has been lost. The Information Center Module 'A' is responsible for providing various information to the driver, such as vehicle diagnostics, fuel efficiency, and other important data. When communication with this module is lost, it can lead to a range of issues that affect the vehicle's performance and functionality.

OBDII Code U0156 - Lost Communication With Information Center Module 'A'
U0156 Code - Lost Communication With Information Center Module 'A'

Common Causes of U0156

  1. Faulty wiring or connectors leading to the Information Center Module 'A'
  2. Malfunctioning Information Center Module 'A'
  3. Loose or damaged connections within the communication network
  4. Electronic control module software issues
  5. Vehicle battery or power supply problems

Symptoms of U0156

  1. Loss of information display on the dashboard
  2. Warning lights appearing on the instrument cluster
  3. Inaccurate fuel level readings
  4. Inability to access vehicle diagnostics
  5. Limited functionality of other vehicle systems

How to Fix U0156

  1. Perform a thorough visual inspection of wiring and connectors leading to the Information Center Module 'A'
  2. Use a diagnostic scan tool to communicate with the module and check for any error codes or communication issues
  3. Test the Information Center Module 'A' for proper functionality and replace if necessary
  4. Check and repair any loose or damaged connections within the vehicle's communication network
  5. Clear the trouble code from the vehicle's computer and test drive to ensure the issue has been resolved

Cost to Fix U0156

The typical repair costs for addressing the U0156 code can vary depending on the specific cause of the communication loss and the necessary repairs. On average, the cost of parts and labor for this issue can range from $200 to $500. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's recommended to inquire with local auto repair shops for a more accurate estimate tailored to your specific situation.

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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.

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