AutoCodes – Chevrolet – U184D 2016 Chevrolet Silverado

U184D 2016 Chevrolet Silverado Code - Lost Communication with Radio on Low Speed CAN Bus

Quick Answer

The serial data circuit is the means by which the devices in the vehicle communicate with each other. Common causes include Faulty Radio, Radio harness is open or shorted, Radio 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: U184D 2016 Chevrolet Silverado indicates Lost Communication with Radio on Low Speed CAN Bus.
Common causes: Common causes include Faulty Radio, Radio harness is open or shorted, Radio 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 184

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 24, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U184D 2016 Chevrolet Silverado Description

The serial data circuit is the means by which the devices in the vehicle communicate with each other. Once the scan tool is connected to the serial data circuit through the Data Link Connector (DLC), the scan tool can be used to monitor each device for diagnostic purposes and to check for Diagnostic Trouble Codes (DTC). When the vehicle is ON, each device communicating on the serial data circuit sends a state of health message to ensure that the device is operating properly. When a device stops communicating on the serial data circuit, for example, if the device loses power or ground, the state of health message it normally sends on the serial data circuit disappears. Other devices on the serial data circuit, which expect to receive that state of health message, detect its absence; those devices in turn set a DTC associated with the loss of state of health of the non-communicating device. A loss of serial data communications DTC does not represent a failure of the devices that contain the stored DTC.

OBDII Code U184D 2016 Chevrolet Silverado - Lost Communication with Radio on Low Speed CAN Bus - AutoCodes.com — U184D 2016 Chevrolet Silverado Code - Lost Communication with Radio on Low Speed CAN Bus

What does this mean?

What are the Possible Causes of the DTC U184D 2016 Chevrolet Silverado?

Faulty Radio
Radio harness is open or shorted
Radio circuit poor electrical connection

How to Fix the DTC U184D 2016 Chevrolet Silverado?

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 U184D 2016 Chevrolet Silverado 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 U184D 2016 Chevrolet Silverado code?

Need more information on how to fix the U184D 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code U184D in a 2016 Chevrolet Silverado?

- Common symptoms include loss of communication with the radio, malfunctioning infotainment system, and potential issues with other vehicle systems connected to the Low Speed CAN Bus.

2. What can cause the U184D code to appear in a 2016 Chevrolet Silverado?

- The code U184D is typically triggered by a communication breakdown between the vehicle's control modules and the radio, often due to wiring issues, a faulty radio unit, or a malfunction in the Low Speed CAN Bus network.

3. How can I diagnose the U184D code in my 2016 Chevrolet Silverado?

- To diagnose the U184D code, it is recommended to use a diagnostic scanner to retrieve the fault codes and perform a thorough inspection of the wiring connections, radio unit, and Low Speed CAN Bus network for any visible issues.

4. Are there any quick repair tips for resolving the U184D code in a 2016 Chevrolet Silverado?

- Quick repair tips include checking and repairing any damaged wiring connections, ensuring the radio unit is functioning correctly, and resetting the fault codes using a diagnostic scanner.

5. Can I continue driving my 2016 Chevrolet Silverado with the U184D code present?

- While the vehicle may still be operable with the U184D code, it is recommended to address the issue promptly to prevent potential malfunctions in other vehicle systems connected to the Low Speed CAN Bus.

6. How much does it typically cost to repair the U184D code in a 2016 Chevrolet Silverado?

- The cost of repairing the U184D code can vary depending on the underlying cause of the communication issue. Costs may range from a simple wiring repair to potentially replacing the radio unit or control modules.

7. Will resetting the U184D code make it go away permanently?

- Resetting the U184D code without addressing the underlying issue will likely result in the code reappearing once the vehicle's systems attempt to communicate with the radio again. It is important to diagnose and repair the root cause of the problem.

8. Can extreme weather conditions affect the appearance of the U184D code in a 2016 Chevrolet Silverado?

- Extreme weather conditions, especially temperature fluctuations, can potentially affect the electrical connections and components involved in the Low Speed CAN Bus network, leading to intermittent communication issues and the triggering of the U184D code.

9. Is it possible to prevent the U184D code from reoccurring in the future?

- Regular maintenance checks, ensuring proper wiring connections, and promptly addressing any communication issues with the radio or control modules can help prevent the U184D code from reoccurring in the future.

10. Should I attempt to repair the U184D code in my 2016 Chevrolet Silverado myself or seek professional help?

- While simple checks like inspecting wiring connections can be done by DIY enthusiasts, diagnosing and repairing complex communication issues related to the U184D code may require professional assistance from a certified mechanic or technician.