AutoCodes – Chevrolet – U0254 Chevrolet

U0254 Chevrolet Code - Lost Communication With Remote Start 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 Remote Start Module, Remote Start Module harness is open or shorted, Remote Start 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
U0254 Chevrolet indicates Lost Communication With Remote Start Module.
Common causes
Common causes include Faulty Remote Start Module, Remote Start Module harness is open or shorted, Remote Start 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 1,963
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 05, 2020
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Code U0254 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 Remote Start Module has not been received.
OBDII Code U0254 Chevrolet - Lost Communication With Remote Start Module - AutoCodes.com
U0254 Chevrolet Code - Lost Communication With Remote Start Module

What are the Possible Causes of the DTC U0254 Chevrolet?

  • Faulty Remote Start Module
  • Remote Start Module harness is open or shorted
  • Remote Start Module circuit poor electrical connection

How to Fix the DTC U0254 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 U0254 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.

Need more information about the U0254 Chevrolet code?

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Need Help with the Code?

Get the U0254 Chevrolet 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 U0254 Chevrolet Code

1. What are the common symptoms of OBDII code U0254 in a Chevrolet related to lost communication with the remote start module?

- Common symptoms include the remote start feature not working, the vehicle not responding to remote start commands, and the inability to start the vehicle remotely.

2. What are the possible causes of OBDII code U0254 in a Chevrolet indicating lost communication with the remote start module?

- Possible causes include a faulty remote start module, wiring issues, a blown fuse, a software glitch, or a malfunction in the vehicle's communication network.

3. How can I diagnose the issue causing OBDII code U0254 in my Chevrolet due to lost communication with the remote start module?

- Diagnose the issue by checking the connections to the remote start module, inspecting the wiring for any damage, ensuring the fuse related to the remote start is intact, and using a diagnostic tool to scan for communication errors.

4. Is it safe to continue driving my Chevrolet with OBDII code U0254 indicating lost communication with the remote start module?

- It is generally safe to continue driving your Chevrolet with this code, but the remote start feature will not work until the issue is resolved.

5. How can I reset OBDII code U0254 in my Chevrolet after fixing the communication issue with the remote start module?

- You can reset the code by using an OBDII scanner to clear the fault codes stored in the vehicle's computer system.

6. Can I repair OBDII code U0254 related to lost communication with the remote start module in my Chevrolet myself?

- Depending on the cause of the issue, you may be able to repair it yourself by checking connections, inspecting wiring, and ensuring the fuse is not blown. However, more complex issues may require professional diagnosis and repair.

7. Will fixing OBDII code U0254 in my Chevrolet's remote start module communication affect any other vehicle systems?

- Fixing the communication issue with the remote start module should not affect other vehicle systems as long as the repair is done correctly.

8. How much does it typically cost to repair OBDII code U0254 in a Chevrolet due to lost communication with the remote start module?

- The cost of repair can vary depending on the cause of the issue. Simple fixes like reattaching a loose wire may be inexpensive, while replacing a faulty remote start module could be more costly.

9. Are there any preventive measures I can take to avoid OBDII code U0254 in my Chevrolet related to remote start module communication issues?

- To prevent this issue, ensure proper installation of aftermarket remote start systems, avoid physical damage to wiring, and regularly inspect the remote start module connections for any signs of wear or corrosion.

10. Can extreme weather conditions like extreme cold or heat contribute to OBDII code U0254 appearing in a Chevrolet due to lost communication with the remote start module?

- Extreme weather conditions can potentially affect the remote start module's performance, but the code is more likely to be triggered by a physical issue like wiring damage or a faulty component.

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