AutoCodes – GMC – U184E GMC

U184E GMC 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 GMC 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 541

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

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 GMC?

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 GMC 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 GMC code?

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Information for Specific GMC Models

U184E 2014 GMC Sierra — Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus
U184E 2015 GMC Sierra — Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus
U184E 2016 GMC Sierra — Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus
U184E 2017 GMC Sierra — Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus
U184E 2018 GMC Sierra — Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus

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 GMC Code

1. What are the common symptoms of OBDII code U184E GMC?

- Common symptoms include the airbag warning light illuminating on the dashboard, loss of communication with the airbag module, and potential disabling of the airbag system.

2. What can cause the U184E GMC code to appear?

- The code may appear due to a faulty inflatable restraint sensing and diagnostic module, issues with the low-speed CAN bus communication network, damaged wiring, or a poor connection.

3. How can I diagnose the U184E code related to the Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus?

- Diagnosis involves checking the wiring harness for any visible damage, inspecting the connections to the airbag module, and using a diagnostic scanner to read the trouble codes and perform a pinpoint test.

4. Is it safe to drive with the U184E trouble code present?

- It is not recommended to drive with the U184E code active, as it indicates a potential issue with the airbag system, which could compromise vehicle safety in the event of a collision.

5. Can I repair the U184E code issue on my own?

- While some basic troubleshooting like checking connections and wiring can be done by DIY enthusiasts, resolving the U184E code may require specialized diagnostic equipment and expertise, best handled by a professional technician.

6. Are there any common mistakes to avoid when dealing with the U184E code?

- Avoiding proper diagnosis and simply clearing the code without addressing the underlying issue can lead to recurring problems with the airbag system. It is crucial to identify and fix the root cause of the code.

7. How much does it typically cost to repair the U184E GMC code?

- The cost of repair can vary depending on the specific cause of the code and the labor rates in your area. It is advisable to get a diagnosis from a qualified mechanic to determine the exact repair cost.

8. Can a low vehicle battery voltage trigger the U184E code?

- Yes, a low vehicle battery voltage can sometimes lead to communication issues with the airbag module and trigger the U184E code. Ensuring the battery is in good condition is a good starting point for troubleshooting.

9. Will resetting the U184E code make it go away permanently?

- Resetting the code without fixing the underlying issue will only turn off the warning light temporarily. The code is likely to reappear until the root cause of the problem is resolved.

10. How important is it to address the U184E code promptly?

- It is crucial to address the U184E code promptly as it indicates a potential problem with the airbag system, which is a critical safety component in the event of a collision. Delaying repairs can compromise vehicle safety.