AutoCodes – Chevrolet – U184C 2014 Chevrolet Silverado

U184C 2014 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 2014 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 217

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 2014 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 2014 Chevrolet Silverado - Lost Communication with Instrument Cluster on Low Speed CAN Bus - AutoCodes.com — U184C 2014 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 2014 Chevrolet Silverado?

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

How to Fix the DTC U184C 2014 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 2014 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 2014 Chevrolet Silverado code?

Need more information on how to fix the U184C 2014 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 U184C 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code U184C on a 2014 Chevrolet Silverado?

- Common symptoms include non-functional gauges, warning lights on the instrument cluster, loss of communication with the cluster, and potential issues with other vehicle systems.

2. What can cause the OBDII code U184C on a 2014 Chevrolet Silverado?

- The code U184C is typically triggered by a loss of communication between the vehicle's PCM and the instrument cluster on the Low Speed CAN Bus.

3. How can I diagnose the cause of the U184C trouble code on my 2014 Chevrolet Silverado?

- Diagnosing the U184C code may involve checking for loose or damaged wiring connections, inspecting the instrument cluster for faults, and scanning for other related trouble codes.

4. Is it safe to continue driving my 2014 Chevrolet Silverado with the U184C trouble code?

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

5. Can I reset the U184C trouble code on my 2014 Chevrolet Silverado by disconnecting the battery?

- Disconnecting the battery may temporarily clear the code, but it is important to diagnose and repair the underlying issue to prevent the code from reoccurring.

6. How can I repair the U184C trouble code on my 2014 Chevrolet Silverado?

- Repairing the U184C code may involve fixing wiring connections, replacing the instrument cluster, updating software, or seeking professional assistance for further diagnosis.

7. Will the U184C trouble code on a 2014 Chevrolet Silverado cause any long-term damage to the vehicle?

- While the U184C code itself may not cause immediate damage, unresolved communication issues between the PCM and instrument cluster can affect the vehicle's performance and functionality over time.

8. Are there any recalls or technical service bulletins related to the U184C trouble code on a 2014 Chevrolet Silverado?

- It is recommended to check with a Chevrolet dealership or online resources for any relevant recalls or technical service bulletins related to the U184C code on a 2014 Silverado.

9. Can extreme weather conditions affect the occurrence of the U184C trouble code on a 2014 Chevrolet Silverado?

- Extreme temperatures or moisture can potentially impact the electrical connections leading to the instrument cluster, contributing to the occurrence of the U184C trouble code.

10. Is it possible to prevent the U184C trouble code from appearing on a 2014 Chevrolet Silverado in the future?

- Regular maintenance, checking for loose wiring, and addressing any instrument cluster issues promptly can help prevent the U184C trouble code from recurring on a 2014 Silverado.