Engine-Codes.com
Engine-Codes – Acura – U0155 Acura

U0155 Acura Code - F-CAN Malfunction Gauge Control Module-Powertrain Control Module

Quick Answer

The U0155 code in Acura vehicles indicates a malfunction in the F-CAN (Fast Controller Area Network) communication system between the Gauge Control Module (GCM) and the Powertrain Control Module (PCM). Common causes include Faulty wiring or connections, Malfunctioning control modules, Software glitches or updates. 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 Acura indicates F-CAN Malfunction Gauge Control Module-Powertrain Control Module.
Common causes
Common causes include Faulty wiring or connections, Malfunctioning control modules, Software glitches or updates.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code U0155 Acura Description

The U0155 code in Acura vehicles indicates a malfunction in the F-CAN (Fast Controller Area Network) communication system between the Gauge Control Module (GCM) and the Powertrain Control Module (PCM). The F-CAN system is responsible for facilitating communication between various control modules in the vehicle, allowing them to exchange data and work together to ensure proper functioning of different systems.

OBDII Code U0155 Acura - F-CAN Malfunction Gauge Control Module-Powertrain Control Module
U0155 Acura Code - F-CAN Malfunction Gauge Control Module-Powertrain Control Module

Common Causes of U0155 Acura

  1. Faulty wiring or connections
  2. Malfunctioning control modules
  3. Software glitches or updates
  4. Electrical issues, such as a weak battery or alternator
  5. Environmental factors, such as moisture or corrosion

Symptoms of U0155 Acura

  1. Dashboard warning lights illuminated
  2. Inaccurate or erratic gauge readings
  3. Loss of communication between control modules
  4. Drivability issues, such as rough idle or stalling
  5. Vehicle may go into limp mode

How to Fix U0155 Acura

  1. Begin by conducting a thorough diagnosis using a diagnostic scan tool to retrieve the specific trouble codes and pinpoint the source of the communication malfunction.
  2. Inspect the wiring harness and connectors between the GCM and PCM for any signs of damage, corrosion, or loose connections. Repair or replace any faulty components as needed.
  3. Check the control modules themselves for any internal faults or malfunctions. Replace any defective modules and reprogram as necessary.
  4. Perform a system reset or reflash to clear the trouble codes and reset the communication network between the modules.
  5. Conduct a road test to verify that the issue has been resolved and that the communication between the GCM and PCM is functioning properly.

Cost to Fix U0155 Acura

The cost of repairing a U0155 code in an Acura vehicle can vary depending on the specific root cause of the issue and the extent of the repairs needed. On average, the repair costs for this type of communication malfunction can range from $200 to $600, including parts and labor. However, it is 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 consult with a professional mechanic or dealership to get an accurate estimate for the repair based on the specific circumstances of your vehicle.

When is the Code Detected?

The U0155 code is set when the Powertrain Control Module (PCM) does not receive any signals via the F-CAN lines for at least 1 second.

Need more information about the U0155 Acura code?

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

Need Help with the Code?

Get the U0155 Acura 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 Acura Code

1. What are common symptoms of the OBDII code U0155 in an Acura?

- Common symptoms include illuminated dashboard warning lights, loss of communication between control modules, and malfunctioning gauge cluster readings.

2. What does the U0155 code indicate in an Acura?

- The U0155 code indicates a malfunction in the communication system between the Gauge Control Module (GCM) and the Powertrain Control Module (PCM) via the F-CAN network.

3. What are possible causes of the U0155 code in an Acura?

- Possible causes include a faulty Gauge Control Module, Powertrain Control Module, damaged wiring or connectors, software issues, or a malfunction in the F-CAN network.

4. How can I diagnose the U0155 code in my Acura?

- Diagnosing the U0155 code typically involves using an OBDII scanner to retrieve the code, checking the communication between modules, inspecting wiring and connectors, and performing software updates if necessary.

5. Can I still drive my Acura with the U0155 code present?

- It is not recommended to drive your Acura with the U0155 code present, as it can lead to inaccurate instrument cluster readings and potential safety hazards due to communication issues between control modules.

6. How is the U0155 code typically repaired in an Acura?

- The U0155 code is typically repaired by addressing the root cause, which may involve replacing the faulty Gauge Control Module, Powertrain Control Module, repairing damaged wiring, or updating software to resolve communication issues.

7. Is the U0155 code a common issue in Acura vehicles?

- The U0155 code is not extremely common in Acura vehicles, but it can occur due to various factors such as electrical faults, module malfunctions, or network communication errors.

8. Can resetting the U0155 code fix the issue in an Acura?

- Resetting the U0155 code may temporarily clear the dashboard warning lights, but it will not fix the underlying issue causing the communication malfunction between the Gauge Control Module and Powertrain Control Module.

9. How much does it typically cost to repair the U0155 code in an Acura?

- The cost of repairing the U0155 code in an Acura can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars including parts and labor.

10. Are there any preventive measures to avoid the U0155 code in an Acura?

- To prevent the U0155 code, it's recommended to regularly inspect and maintain the electrical components, wiring, and control modules in your Acura to ensure proper communication and functionality.

Discuss the causes and fixes for U0155 Acura OBDII Code

Submit a New Comment

Code U0155 Acura comments

No comments found for this page.