AutoCodes – Chevrolet – U184C 2017 Chevrolet Silverado

U184C 2017 Chevrolet Silverado Code - Lost Communication with Instrument Cluster 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 Instrument Cluster, Instrument Cluster harness is open or shorted, Instrument Cluster 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: U184C 2017 Chevrolet Silverado indicates Lost Communication with Instrument Cluster on Low Speed CAN Bus.
Common causes: Common causes include Faulty Instrument Cluster, Instrument Cluster harness is open or shorted, Instrument Cluster 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 179

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 U184C 2017 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 U184C 2017 Chevrolet Silverado - Lost Communication with Instrument Cluster on Low Speed CAN Bus - AutoCodes.com — U184C 2017 Chevrolet Silverado Code - Lost Communication with Instrument Cluster on Low Speed CAN Bus

What does this mean?

What are the Possible Causes of the DTC U184C 2017 Chevrolet Silverado?

Faulty Instrument Cluster
Instrument Cluster harness is open or shorted
Instrument Cluster circuit poor electrical connection

How to Fix the DTC U184C 2017 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 U184C 2017 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 U184C 2017 Chevrolet Silverado code?

Need more information on how to fix the U184C 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

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Get the U184C 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 U184C 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code U184C in a 2017 Chevrolet Silverado?

The common symptoms include instrument cluster malfunctions, loss of communication with the cluster, warning lights on the dashboard, and inaccurate readings.

2. What does the OBDII code U184C indicate in a 2017 Chevrolet Silverado?

The code U184C indicates a communication error between the vehicle's onboard computer system and the instrument cluster on the Low Speed CAN Bus.

3. What are some possible causes of the U184C code in a 2017 Chevrolet Silverado?

Possible causes include damaged wiring or connectors, a faulty instrument cluster, a malfunctioning CAN Bus module, or a problem with the vehicle's main computer.

4. How can I diagnose the U184C code issue in my 2017 Chevrolet Silverado?

Diagnosing the issue involves checking the wiring and connectors for damage, testing the instrument cluster for functionality, inspecting the CAN Bus module, and using a diagnostic scanner to communicate with the vehicle's computer system.

5. Can I still drive my 2017 Chevrolet Silverado with the U184C code present?

It is not recommended to drive the vehicle with the U184C code present, as it can lead to inaccurate readings on the instrument cluster and potential safety hazards.

6. How can I repair the U184C code issue in my 2017 Chevrolet Silverado?

Repairing the issue may involve fixing or replacing damaged wiring, connectors, the instrument cluster, or the CAN Bus module, depending on the root cause of the communication error.

7. Is it necessary to reset the OBDII code U184C after repairing the issue in a 2017 Chevrolet Silverado?

Yes, it is recommended to reset the code using a diagnostic scanner after repairing the underlying problem to clear the fault code and ensure proper functionality.

8. Can a DIY enthusiast fix the U184C code issue in a 2017 Chevrolet Silverado?

While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing the specific cause of the U184C code may require professional help due to the complexity of the vehicle's electronic systems.

9. How much does it typically cost to repair the U184C code issue in a 2017 Chevrolet Silverado?

The cost of repairing the U184C code can vary depending on the root cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

10. How can I prevent the U184C code issue from recurring in my 2017 Chevrolet Silverado?

To prevent the U184C code from recurring, it is essential to maintain the vehicle's electrical system, address any warning signs promptly, and follow recommended maintenance schedules to ensure the proper functioning of the instrument cluster and communication systems.