AutoCodes – Cadillac – U0257 Cadillac

U0257 Cadillac Code - Lost Communication With Info Display Module/Infotainment Faceplate 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 Info Display Module/Infotainment Faceplate Control Module, Info Display Module/Infotainment Faceplate Control Module harness is open or shorted, Info Display Module/Infotainment Faceplate 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
U0257 Cadillac indicates Lost Communication With Info Display Module/Infotainment Faceplate Control Module.
Common causes
Common causes include Faulty Info Display Module/Infotainment Faceplate Control Module, Info Display Module/Infotainment Faceplate Control Module harness is open or shorted, Info Display Module/Infotainment Faceplate 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 2,287
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 U0257 Cadillac 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 Info Display Module/Infotainment Faceplate Control Module has not been received.
OBDII Code U0257 Cadillac - Lost Communication With Info Display Module/Infotainment Faceplate Control Module - AutoCodes.com
U0257 Cadillac Code - Lost Communication With Info Display Module/Infotainment Faceplate Control Module

What are the Possible Causes of the DTC U0257 Cadillac?

  • Faulty Info Display Module/Infotainment Faceplate Control Module
  • Info Display Module/Infotainment Faceplate Control Module harness is open or shorted
  • Info Display Module/Infotainment Faceplate Control Module circuit poor electrical connection

How to Fix the DTC U0257 Cadillac?

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 U0257 Cadillac 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 U0257 Cadillac Code

1. What are the common symptoms of OBDII code U0257 in a Cadillac related to the Info Display Module/Infotainment Faceplate Control Module issue?

- Common symptoms include the infotainment system not functioning properly, loss of audio or touchscreen control, and warning messages related to communication errors.

2. What are the possible causes of the U0257 code indicating a communication problem with the Info Display Module in a Cadillac?

- Potential causes include a faulty Info Display Module, damaged wiring or connectors, software glitches, or issues with the vehicle's network communication system.

3. How can I diagnose the U0257 trouble code in my Cadillac indicating a lost communication issue with the Info Display Module?

- Diagnose by checking for other related trouble codes, inspecting the wiring and connectors for damage, and performing a communication network test using a diagnostic scanner.

4. Is it safe to continue driving my Cadillac with the U0257 code related to the Info Display Module issue?

- It is generally safe to drive, but the malfunctioning infotainment system may be inconvenient. It is recommended to address the issue promptly to ensure proper vehicle functionality.

5. Can I repair the U0257 code related to the Info Display Module problem in my Cadillac myself, or do I need a professional mechanic?

- Depending on your knowledge and skills, you may be able to address simple causes like loose connections. However, complex issues or module replacements may require professional assistance.

6. Will resetting the U0257 trouble code related to the Info Display Module issue in my Cadillac solve the problem permanently?

- Resetting the code may temporarily clear the warning, but it will not fix the underlying issue causing the communication problem. Proper diagnosis and repair are necessary for a permanent solution.

7. How much does it typically cost to repair the U0257 code indicating a lost communication with the Info Display Module in a Cadillac?

- Repair costs can vary based on the exact cause of the issue. It may range from a simple connector repair costing a few dollars to a module replacement costing several hundred dollars.

8. Are there any preventive maintenance tips to avoid encountering the U0257 trouble code related to the Info Display Module in my Cadillac?

- Regularly checking and maintaining the vehicle's electrical connections, updating infotainment system software, and avoiding water damage can help prevent communication issues.

9. Can a dead battery or jump-starting the vehicle trigger the U0257 code indicating a lost communication with the Info Display Module in a Cadillac?

- Yes, a dead battery or jump-starting process can sometimes disrupt the vehicle's communication network, leading to the U0257 trouble code. Resetting the code may resolve the issue in such cases.

10. Is the U0257 code related to the Info Display Module issue common in Cadillac vehicles, or is it specific to certain models or years?

- The U0257 code can occur in various Cadillac models with advanced infotainment systems. While not extremely common, it is a known issue in some vehicles, especially those with complex electronic systems.

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