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U184D 2014 Chevrolet Silverado Code - Lost Communication with Radio on Low Speed CAN Bus

Quick Answer

The U184D diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that there is a communication issue between the vehicle's radio and the low-speed Controller Area Network (CAN) bus. Common causes include Loose or corroded wiring connections between the radio and the CAN bus, Faulty radio unit or CAN bus module, Water or moisture damage to the wiring harness. 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
U184D 2014 Chevrolet Silverado indicates Lost Communication with Radio on Low Speed CAN Bus.
Common causes
Common causes include Loose or corroded wiring connections between the radio and the CAN bus, Faulty radio unit or CAN bus module, Water or moisture damage to the wiring harness.
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
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Code U184D 2014 Chevrolet Silverado Description

The U184D diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that there is a communication issue between the vehicle's radio and the low-speed Controller Area Network (CAN) bus. The CAN bus is a network that allows different electronic control units (ECUs) within the vehicle to communicate with each other. In this case, the loss of communication with the radio on the low-speed CAN bus can result in various issues with the vehicle's entertainment system and potentially affect other systems as well.

OBDII Code U184D 2014 Chevrolet Silverado - Lost Communication with Radio on Low Speed CAN Bus
U184D 2014 Chevrolet Silverado Code - Lost Communication with Radio on Low Speed CAN Bus

Common Causes of U184D 2014 Chevrolet Silverado

  1. Loose or corroded wiring connections between the radio and the CAN bus
  2. Faulty radio unit or CAN bus module
  3. Water or moisture damage to the wiring harness
  4. Software glitch in the radio or CAN bus system
  5. Electrical short circuit in the communication network

Symptoms of U184D 2014 Chevrolet Silverado

  1. Check engine light illuminated on the dashboard
  2. Radio display not functioning correctly
  3. Loss of sound from the radio speakers
  4. Inability to control the radio settings
  5. Issues with other systems that rely on the CAN bus for communication

How to Fix U184D 2014 Chevrolet Silverado

  1. Perform a visual inspection of the wiring harness and connectors between the radio and the CAN bus. Ensure all connections are secure and free of corrosion.
  2. Use a diagnostic tool to scan the vehicle's onboard computer and retrieve the specific error codes. Clear the codes and see if the issue persists.
  3. Test the radio unit and CAN bus module for functionality. Replace any faulty components as needed.
  4. Check for any software updates for the radio or CAN bus system. Update the software to the latest version if applicable.
  5. Conduct a thorough test drive to confirm that the communication issue has been resolved and that all systems are functioning correctly.

Cost to Fix U184D 2014 Chevrolet Silverado

The typical repair costs for addressing a U184D code on a 2014 Chevrolet Silverado can range from $100 to $500, depending on the specific cause of the communication issue and the cost of replacement parts. This estimate includes the cost of diagnostic testing, labor, and any necessary repairs or replacements. It's important to note that the actual cost may vary based on factors such as the location of the repair shop, the make and model of the vehicle, and the complexity of the issue. It is recommended to consult with a qualified mechanic or dealership for a more accurate cost estimate.

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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 U184D 2014 Chevrolet Silverado Code

1. What are common symptoms of OBDII code U184D in a 2014 Chevrolet Silverado?

- Common symptoms include the radio not functioning properly, loss of communication with other modules, and potentially other electrical issues.

2. What does the code U184D indicate in a 2014 Chevrolet Silverado?

- The code U184D indicates a communication error between the radio and the Low Speed CAN Bus network in the vehicle.

3. What are possible causes of the U184D code in a 2014 Chevrolet Silverado?

- Possible causes include a faulty radio module, wiring issues, a defective CAN Bus network, or a malfunctioning control module.

4. How can I diagnose the U184D code in my 2014 Chevrolet Silverado?

- Diagnosing the U184D code may require using a diagnostic scanner to communicate with the vehicle's modules, checking the wiring connections, and testing the radio module for proper functionality.

5. Can I still drive my 2014 Chevrolet Silverado with the U184D code present?

- In most cases, it is safe to drive the vehicle with the U184D code, but it is recommended to address the issue promptly to avoid potential electrical problems.

6. How can I repair the U184D code in my 2014 Chevrolet Silverado?

- Repairing the U184D code may involve replacing the radio module, repairing any damaged wiring, ensuring proper connections, or reprogramming control modules if necessary.

7. Is the U184D code a common issue in 2014 Chevrolet Silverado vehicles?

- While not extremely common, the U184D code can occur in 2014 Chevrolet Silverado vehicles due to communication issues within the vehicle's network.

8. Can a DIY enthusiast fix the U184D code in a 2014 Chevrolet Silverado?

- Depending on the root cause of the issue, a DIY enthusiast may be able to address the U184D code by checking connections and replacing the radio module if needed.

9. Will resetting the OBDII system clear the U184D code in a 2014 Chevrolet Silverado?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear upon further diagnostics.

10. How much does it typically cost to repair the U184D code in a 2014 Chevrolet Silverado?

- The cost of repairing the U184D code can vary depending on the specific issue, parts needed, and labor costs, but it may range from a few hundred to over a thousand dollars at a dealership or repair shop.

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