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Engine-Codes – Generic – U2172

U2172 Code - Lost Communication With Digital Radio Receiver

Quick Answer

The U2172 diagnostic trouble code (DTC) indicates that there is a communication problem between the vehicle's control module and the digital radio receiver. Common causes include Faulty wiring or connections between the control module and the digital radio receiver, Malfunctioning digital radio receiver, Issues with the control module preventing proper communication. 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
U2172 indicates Lost Communication With Digital Radio Receiver.
Common causes
Common causes include Faulty wiring or connections between the control module and the digital radio receiver, Malfunctioning digital radio receiver, Issues with the control module preventing proper communication.
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 08, 2024
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Code U2172 Description

The U2172 diagnostic trouble code (DTC) indicates that there is a communication problem between the vehicle's control module and the digital radio receiver. This means that the control module is unable to receive or send data to the digital radio receiver, which can lead to a variety of issues within the vehicle's entertainment system. The digital radio receiver is responsible for receiving radio signals and processing them for audio output, so a loss of communication with this component can result in a lack of sound or poor audio quality from the radio.

OBDII Code U2172 - Lost Communication With Digital Radio Receiver
U2172 Code - Lost Communication With Digital Radio Receiver

Common Causes of U2172

  1. Faulty wiring or connections between the control module and the digital radio receiver
  2. Malfunctioning digital radio receiver
  3. Issues with the control module preventing proper communication
  4. Water damage to the digital radio receiver or control module
  5. Electrical interference affecting the communication signal

Symptoms of U2172

  1. No sound from the radio
  2. Inability to change radio stations
  3. Poor audio quality or static while listening to the radio
  4. Complete loss of radio functionality

How to Fix U2172

  1. Inspect and test the wiring and connections between the control module and the digital radio receiver for any damage or loose connections.
  2. Check the digital radio receiver for any signs of water damage or malfunctions.
  3. Test the control module to ensure it is functioning properly and able to communicate with the digital radio receiver.
  4. Replace any damaged wiring, connections, or components as needed to restore proper communication between the control module and digital radio receiver.
  5. Clear the DTC and test the radio to ensure it is functioning correctly.

Cost to Fix U2172

The typical repair costs for addressing a U2172 code can vary depending on the specific cause of the communication error. In general, the cost of parts for this repair could range from $100 to $300, while labor costs may add an additional $100 to $200. It is important to note that prices can vary based on location, vehicle make and model, and the specific diagnosis time and labor rates at auto repair shops. It is recommended to consult with a professional technician for a more accurate estimate based on your individual circumstances.

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Code U2172 Information for Specific Makes

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 U2172 Code

1. What are the common symptoms of OBDII code U2172, Lost Communication With Digital Radio Receiver?

- Common symptoms include loss of radio functionality, no sound from the speakers, and a blank or frozen radio display.

2. What are the possible causes of OBDII code U2172?

- The code U2172 can be caused by issues such as a faulty digital radio receiver, damaged wiring or connectors, a blown fuse, or a software glitch in the radio system.

3. How can I diagnose the cause of OBDII code U2172?

- Diagnosing the code U2172 typically involves checking the wiring and connectors leading to the digital radio receiver, inspecting the fuse related to the radio system, and using a scan tool to communicate with the receiver.

4. What are some tips for repairing OBDII code U2172?

- Repairing the code U2172 may involve replacing the digital radio receiver if it is found to be faulty, repairing any damaged wiring or connectors, ensuring the fuse related to the radio system is intact, and updating the radio system software if needed.

5. Can OBDII code U2172 cause any other issues with the vehicle?

- While the code U2172 itself may not directly impact the drivability of the vehicle, the loss of communication with the digital radio receiver can affect the convenience and entertainment features of the vehicle.

6. Is it safe to continue driving with OBDII code U2172 present?

- It is generally safe to continue driving with the code U2172 present, but it is recommended to address the issue promptly to restore the functionality of the digital radio system.

7. Can resetting the vehicle's computer clear OBDII code U2172?

- Resetting the vehicle's computer may temporarily clear the code U2172, but if the underlying issue causing the communication loss with the digital radio receiver is not addressed, the code is likely to return.

8. How much does it typically cost to repair OBDII code U2172?

- The cost of repairing OBDII code U2172 can vary depending on the specific cause of the issue, but it may involve expenses for parts, labor, and potential software updates.

9. Are there any recalls or technical service bulletins related to OBDII code U2172?

- It is recommended to check with the vehicle manufacturer or a dealership to inquire about any recalls or technical service bulletins related to OBDII code U2172 for specific makes and models.

10. Can a DIY enthusiast repair OBDII code U2172, or is it best left to professionals?

- Depending on the underlying cause, some DIY enthusiasts may be able to address OBDII code U2172 by checking wiring, connectors, and fuses. However, diagnosing and repairing electronic issues with the digital radio system may require professional expertise.

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