U0073 2015 GMC Sierra Code - Control Module Communication Bus OFF
Quick Answer
The U0073 code on a 2015 GMC Sierra indicates that there is a communication bus off error within the vehicle's control module system. Common causes include Damaged wiring or connectors in the communication bus system, Faulty control module, Software glitch. 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
- U0073 2015 GMC Sierra indicates Control Module Communication Bus OFF.
- Common causes
- Common causes include Damaged wiring or connectors in the communication bus system, Faulty control module, Software glitch.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code U0073 2015 GMC Sierra Description
The U0073 code on a 2015 GMC Sierra indicates that there is a communication bus off error within the vehicle's control module system. The communication bus is a network that allows various control modules in the vehicle to communicate with each other. When this communication is disrupted or lost, it can lead to issues with the vehicle's performance and functionality.
Common Causes of U0073 2015 GMC Sierra
- Damaged wiring or connectors in the communication bus system
- Faulty control module
- Software glitch
- Corrosion in the communication bus connections
- Electrical interference from aftermarket accessories
Symptoms of U0073 2015 GMC Sierra
- Loss of power steering
- Erratic shifting in the transmission
- ABS system malfunction
- Engine stalling
- Loss of communication with diagnostic tools
How to Fix U0073 2015 GMC Sierra
- Conduct a thorough inspection of the communication bus system to check for damaged wiring or connectors.
- Test the control modules for proper functionality and replace any faulty modules.
- Update the software in the control modules to address any glitches.
- Clean and secure the connections in the communication bus system to prevent corrosion and ensure proper communication.
- Remove any aftermarket accessories that may be causing electrical interference with the communication bus.
Cost to Fix U0073 2015 GMC Sierra
The typical repair costs for addressing a U0073 code on a 2015 GMC Sierra can range from $200 to $500, depending on the exact cause of the issue and the extent of the repairs needed. This estimate includes parts and labor. However, it is important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may charge less. It is recommended to inquire about local rates for a more accurate estimate.
Need more information about the U0073 2015 GMC Sierra code?
Need more information on how to fix the U0073 2015 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U0073 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U0073 2015 GMC Sierra Code
1. What does the OBDII code U0073 mean on a 2015 GMC Sierra?
The U0073 code indicates a communication issue on the Controller Area Network (CAN) bus, meaning one or more modules are unable to communicate properly.
2. What are the common symptoms of the U0073 code in a 2015 GMC Sierra?
Symptoms may include a check engine light, erratic vehicle behavior, unresponsive systems like ABS or traction control, and intermittent starting issues.
3. What causes the U0073 code to appear on a 2015 GMC Sierra?
Common causes include a faulty control module, damaged wiring or connectors in the CAN bus, low battery voltage, or a malfunctioning CAN bus network.
4. Can a weak battery trigger the U0073 code on a 2015 GMC Sierra?
Yes, a weak or failing battery can cause insufficient voltage, disrupting communication between modules and triggering the U0073 code.
5. How do I diagnose the U0073 code on a 2015 GMC Sierra?
Start by checking the battery voltage and condition, inspect CAN bus wiring and connectors for damage, and use a scan tool to identify which module is not communicating.
6. Is it safe to drive a 2015 GMC Sierra with the U0073 code?
It depends on the severity of the issue. While the vehicle may still operate, compromised communication between modules can lead to erratic or unsafe vehicle behavior.
7. How can I fix the U0073 code on my 2015 GMC Sierra?
Repairs may include replacing a faulty control module, repairing damaged CAN bus wiring, cleaning or reconnecting loose connectors, or ensuring the battery is fully charged.
8. How much does it cost to repair the U0073 code on a 2015 GMC Sierra?
Repair costs vary based on the issue, ranging from $50 for simple wiring repairs to $500 or more for module replacement and reprogramming.
9. Can a software update resolve the U0073 code on a 2015 GMC Sierra?
In some cases, a software update for the control modules may fix communication issues, but this should be done after physical inspections.
10. What tools are needed to troubleshoot the U0073 code on a 2015 GMC Sierra?
You’ll need a multimeter to check wiring, a scan tool with CAN bus diagnostics, and potentially a battery tester to rule out voltage issues.
Discuss the causes and fixes for U0073 2015 GMC Sierra OBDII Code
Code U0073 2015 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.