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U0248 Chevrolet Code - Lost Communication With Remote Accessory Module

Quick Answer

The U0248 diagnostic trouble code (DTC) for Chevrolet vehicles indicates that there has been a loss of communication with the Remote Accessory Module (RAM). Common causes include Faulty Remote Accessory Module (RAM), Wiring issues or loose connections, Malfunctioning control module. 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
U0248 Chevrolet indicates Lost Communication With Remote Accessory Module.
Common causes
Common causes include Faulty Remote Accessory Module (RAM), Wiring issues or loose connections, Malfunctioning control module.
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 Aug 19, 2024
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Code U0248 Chevrolet Description

The U0248 diagnostic trouble code (DTC) for Chevrolet vehicles indicates that there has been a loss of communication with the Remote Accessory Module (RAM). The RAM is responsible for controlling various accessories in the vehicle, such as power windows, door locks, and remote keyless entry. When communication is lost with this module, it can lead to issues with operating these accessories, affecting the convenience and functionality of the vehicle.

OBDII Code U0248 Chevrolet - Lost Communication With Remote Accessory Module
U0248 Chevrolet Code - Lost Communication With Remote Accessory Module

Common Causes of U0248 Chevrolet

  1. Faulty Remote Accessory Module (RAM)
  2. Wiring issues or loose connections
  3. Malfunctioning control module
  4. Communication network problems within the vehicle
  5. Water damage or corrosion affecting electronic components

Symptoms of U0248 Chevrolet

  1. Inoperable power windows or door locks
  2. Remote keyless entry not functioning
  3. Warning lights related to accessory systems on the dashboard
  4. Unresponsive buttons on the key fob
  5. Loss of communication with other modules in the vehicle

How to Fix U0248 Chevrolet

  1. Perform a thorough diagnostic scan to identify the specific cause of the communication loss.
  2. Inspect wiring harnesses and connections for any damage or loose connections.
  3. Test the Remote Accessory Module (RAM) for proper functionality and replace if necessary.
  4. Check and repair any issues with the control module or communication network.
  5. Clear the DTC and test the affected accessories to ensure proper operation.

Cost to Fix U0248 Chevrolet

The typical repair costs for addressing a U0248 code on a Chevrolet vehicle can vary depending on the specific cause of the issue. In general, the cost of parts for replacing a faulty RAM or control module can range from $100 to $300, while labor costs may vary between $100 and $200. Overall, the total repair cost for resolving this issue can range from $200 to $500, but it's recommended to get a detailed quote from a reputable auto repair shop based on the specific circumstances of your vehicle.

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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 U0248 Chevrolet Code

1. What are the common symptoms of OBDII code U0248 in a Chevrolet related to Lost Communication With Remote Accessory Module?

- Common symptoms include issues with remote keyless entry, power door locks, and other remote accessory functions not working properly.

2. What are some possible causes of OBDII code U0248 in a Chevrolet?

- Possible causes may include a faulty remote accessory module, damaged wiring or connectors, low battery voltage, or a communication network issue.

3. How can I diagnose the cause of OBDII code U0248 in my Chevrolet?

- Diagnosing this code typically involves checking the remote accessory module, inspecting wiring and connectors for damage, testing battery voltage, and using a scan tool to check for communication network problems.

4. Can I still drive my Chevrolet with OBDII code U0248 present?

- While it may be possible to drive the vehicle with this code, it is recommended to address the issue promptly to ensure proper functionality of remote accessory features.

5. How can I repair OBDII code U0248 in my Chevrolet?

- Repairs for this code often involve replacing a faulty remote accessory module, repairing damaged wiring or connectors, ensuring proper battery voltage, and addressing any communication network issues.

6. Is it safe to reset the OBDII code U0248 in my Chevrolet using a scan tool?

- Yes, it is safe to reset the code using a scan tool after addressing the underlying issue causing the communication problem with the remote accessory module.

7. Can a DIY enthusiast fix OBDII code U0248 in a Chevrolet?

- Depending on the root cause of the issue, DIY enthusiasts may be able to address simple problems like checking connections or replacing a module. However, more complex diagnostics and repairs may require professional assistance.

8. How can I prevent OBDII code U0248 from occurring in my Chevrolet in the future?

- Regularly maintaining the remote accessory system, ensuring proper battery health, and promptly addressing any issues with remote features can help prevent the recurrence of this code.

9. Will fixing OBDII code U0248 improve the overall performance of my Chevrolet?

- Fixing this code will primarily restore proper functionality of remote accessory features and may improve convenience and usability, but it is unlikely to significantly impact the overall performance of the vehicle.

10. Are there any recalls or technical service bulletins related to OBDII code U0248 in Chevrolet vehicles?

- It is recommended to check with a Chevrolet dealership or refer to the manufacturer's website to see if there are any relevant recalls or technical service bulletins addressing OBDII code U0248 and related issues.

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