U184E 2017 GMC Sierra Code - Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus
Quick Answer
The U184E diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates that there is a communication issue with the Inflatable Restraint Sensing and Diagnostic Module (SDM) on the Low Speed Controller Area Network (CAN) Bus. Common causes include Damaged wiring or connectors leading to the Inflatable Restraint SDM, Faulty Inflatable Restraint SDM, Issues with the Low Speed CAN Bus network. 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 2017 GMC Sierra indicates Lost Communication with Inflatable Restraint Sensing and Diagnostic Module on Low Speed CAN Bus.
- Common causes
- Common causes include Damaged wiring or connectors leading to the Inflatable Restraint SDM, Faulty Inflatable Restraint SDM, Issues with the Low Speed CAN Bus network.
- 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 U184E 2017 GMC Sierra Description
The U184E diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates that there is a communication issue with the Inflatable Restraint Sensing and Diagnostic Module (SDM) on the Low Speed Controller Area Network (CAN) Bus. The Inflatable Restraint SDM is a crucial component of the vehicle's airbag system, responsible for detecting collisions and deploying airbags to protect occupants in the event of a crash. The Low Speed CAN Bus is a communication network that allows various modules in the vehicle to exchange data at a lower speed compared to the High Speed CAN Bus.
Common Causes of U184E 2017 GMC Sierra
- Damaged wiring or connectors leading to the Inflatable Restraint SDM.
- Faulty Inflatable Restraint SDM.
- Issues with the Low Speed CAN Bus network.
- Malfunctioning control module.
- Corrosion or water damage affecting the components.
Symptoms of U184E 2017 GMC Sierra
- Airbag warning light illuminated on the dashboard.
- Loss of communication with the Inflatable Restraint SDM.
- Inability to perform a diagnostic scan on the airbag system.
- Erratic or non-deployment of airbags in a crash situation.
How to Fix U184E 2017 GMC Sierra
- Begin by inspecting the wiring and connectors leading to the Inflatable Restraint SDM for any signs of damage or corrosion. Repair or replace any damaged components.
- Check the connections to the Inflatable Restraint SDM and ensure they are secure and properly seated.
- Perform a diagnostic scan to identify the specific cause of the communication loss and address any fault codes present.
- If the Inflatable Restraint SDM is found to be faulty, replace it with a new unit and program it to the vehicle's specifications.
- Test the airbag system to ensure proper communication and functionality before returning the vehicle to service.
Cost to Fix U184E 2017 GMC Sierra
The typical repair costs for addressing a U184E code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of parts such as wiring, connectors, or a new Inflatable Restraint SDM can range from $200 to $800. Labor costs at an auto repair shop can add an additional $100 to $300 to the total bill. Overall, the total repair cost for this issue could range from $300 to $1100. It is advisable to consult with a local auto repair shop for a more accurate estimate based on your specific circumstances. Keep in mind that labor rates can vary based on location, vehicle make and model, and the expertise of the technicians performing the repair.
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Frequently Asked Questions about U184E 2017 GMC Sierra Code
What does the OBDII code U184E mean on a 2017 GMC Sierra?
The code U184E indicates a loss of communication with the Inflatable Restraint Sensing and Diagnostic Module (SDM) on the low-speed CAN bus.
What are the symptoms of the U184E code in a 2017 GMC Sierra?
Common symptoms include the airbag warning light illuminating, issues with airbag deployment functionality, or a possible lack of communication with other modules.
What causes the U184E code to appear?
Possible causes include a faulty Inflatable Restraint Sensing and Diagnostic Module, damaged or corroded wiring in the low-speed CAN bus, poor electrical connections, or a software issue.
Is the U184E code a serious problem?
Yes, it can be serious because it may affect the airbag system, which is critical for occupant safety in the event of a collision.
How can I diagnose the U184E code on my 2017 GMC Sierra?
Diagnosis involves using a scan tool to check for related codes, inspecting the wiring and connectors for damage or corrosion, and testing the communication lines on the low-speed CAN bus.
Can a U184E code be caused by a dead or weak battery?
Yes, a weak or dead battery can sometimes cause communication issues on the CAN bus, potentially triggering the U184E code.
What should I inspect if I get the U184E code?
Inspect the wiring and connectors for the Inflatable Restraint Sensing and Diagnostic Module, as well as the low-speed CAN bus network for damage, corrosion, or loose connections.
How do I fix the U184E code on a 2017 GMC Sierra?
Repairs may involve replacing or repairing damaged wiring, reconnecting loose connectors, updating module software, or replacing the Inflatable Restraint Sensing and Diagnostic Module if it’s faulty.
Can I still drive my 2017 GMC Sierra with the U184E code active?
While the truck may still run, it is not recommended to drive with this code active since it may impact the functionality of the airbag system.
Will clearing the U184E code with a scan tool fix the problem?
Clearing the code may temporarily reset the system, but if the underlying issue isn’t resolved, the code will likely return.
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