AutoCodes – GMC – U184E 2016 GMC Sierra

U184E 2016 GMC Sierra Code - Lost Communication with Inflatable Restraint Sensing and Diagnostic Module 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 Inflatable Restraint Sensing and Diagnostic Module, Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted, Inflatable Restraint Sensing and Diagnostic Module 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: U184E 2016 GMC Sierra indicates Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus.
Common causes: Common causes include Faulty Inflatable Restraint Sensing and Diagnostic Module, Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted, Inflatable Restraint Sensing and Diagnostic Module 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 176

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 U184E 2016 GMC Sierra 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 U184E 2016 GMC Sierra - Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus - AutoCodes.com — U184E 2016 GMC Sierra Code - Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus

What does this mean?

What are the Possible Causes of the DTC U184E 2016 GMC Sierra?

Faulty Inflatable Restraint Sensing and Diagnostic Module
Inflatable Restraint Sensing and Diagnostic Module harness is open or shorted
Inflatable Restraint Sensing and Diagnostic Module circuit poor electrical connection

How to Fix the DTC U184E 2016 GMC Sierra?

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 U184E 2016 GMC Sierra 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 U184E 2016 GMC Sierra code?

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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 U184E 2016 GMC Sierra Code

1. What does the OBDII code U184E mean on a 2016 GMC Sierra?

The U184E code indicates a lost communication issue between the Inflatable Restraint Sensing and Diagnostic Module (SDM) and the Low-Speed CAN Bus network.

2. What are the symptoms of the U184E code on a 2016 GMC Sierra?

Common symptoms include the airbag warning light illuminating, potential loss of airbag functionality, and stored communication error codes.

3. What causes the U184E code to appear on a 2016 GMC Sierra?

Potential causes include a faulty Inflatable Restraint Sensing and Diagnostic Module, damaged or corroded wiring, loose or poor connections in the CAN Bus network, or a malfunctioning control module.

4. Is it safe to drive with the U184E code on a 2016 GMC Sierra?

It may be unsafe, as the code could indicate that the airbag system is not functioning properly. It's recommended to address the issue immediately.

5. How can I diagnose the U184E code on my 2016 GMC Sierra?

Diagnosis may involve scanning the vehicle with an advanced OBDII tool, inspecting the wiring and connectors in the Low-Speed CAN Bus network, and testing the Inflatable Restraint Sensing and Diagnostic Module.

6. Can a dead battery cause the U184E code on a 2016 GMC Sierra?

Yes, a weak or dead battery can cause communication errors, including the U184E code. Ensure the battery and charging system are in good condition.

7. How do I fix the U184E code on my 2016 GMC Sierra?

Repairs may include checking and repairing damaged wiring or connectors, replacing the Inflatable Restraint Sensing and Diagnostic Module if faulty, or reprogramming related modules if necessary.

8. Do I need a professional to fix the U184E code on a 2016 GMC Sierra?

While some basic checks like inspecting wiring can be done at home, addressing module faults or reprogramming typically requires specialized tools and expertise from a professional technician.

9. Can a faulty CAN Bus cause the U184E code on a 2016 GMC Sierra?

Yes, issues with the Low-Speed CAN Bus, such as interruptions or shorts in the network, can trigger the U184E code.

10. How much does it cost to fix the U184E code on a 2016 GMC Sierra?

Repair costs can vary widely depending on the cause. Wiring or connector repairs may cost under $200, while replacing the module or extensive diagnostics could exceed $500.