U3012 GMC Code - Control Module Improper Wake-Up Performance
Quick Answer
The internal fault detection is handled inside the device. Common causes include Faulty Control Module setting the code, Control Module harness is open or shorted, Control 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
- U3012 GMC indicates Control Module Improper Wake-Up Performance.
- Common causes
- Common causes include Faulty Control Module setting the code, Control Module harness is open or shorted, Control 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.
Code U3012 GMC Description
What are the Possible Causes of the DTC U3012 GMC?
- Faulty Control Module setting the code
- Control Module harness is open or shorted
- Control Module circuit poor electrical connection
How to Fix the DTC U3012 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 U3012 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 U3012 GMC code?
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Need Help with the Code?
Get the U3012 GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- U3012 2014 GMC Sierra — Control Module Improper Wake-Up Performance
- U3012 2015 GMC Sierra — Control Module Improper Wake-Up Performance
- U3012 2016 GMC Sierra — Control Module Improper Wake-Up Performance
- U3012 2017 GMC Sierra — Control Module Improper Wake-Up Performance
- U3012 2018 GMC Sierra — Control Module Improper Wake-Up Performance
Frequently Asked Questions about U3012 GMC Code
1. What are the common symptoms of OBDII code U3012 GMC?
The common symptoms of code U3012 GMC include intermittent or complete loss of power steering assist, warning lights illuminated on the dashboard, and difficulty starting the vehicle.
2. What can cause the OBDII code U3012 GMC to trigger?
The code U3012 GMC is typically triggered by improper wake-up performance of the control module, which can be caused by a weak battery, faulty control module, or electrical issues.
3. How do I diagnose the OBDII code U3012 GMC?
Diagnosing the code U3012 GMC usually involves checking the battery voltage, inspecting the control modules and their connections, and performing a thorough electrical system test using a diagnostic scan tool.
4. Can a weak battery be the root cause of code U3012 GMC?
Yes, a weak or failing battery can lead to improper wake-up performance of the control module, triggering the code U3012 GMC. It is essential to ensure the battery is in good condition before further troubleshooting.
5. How should I repair OBDII code U3012 GMC?
To repair code U3012 GMC, start by addressing any underlying battery or electrical issues. Ensure the battery is charged and functioning correctly, check for loose or corroded connections, and replace any faulty control modules if necessary.
6. Can I drive my vehicle with the OBDII code U3012 GMC present?
It is not recommended to drive your vehicle with the code U3012 GMC present, as it can lead to potential safety hazards such as loss of power steering assist. It is best to address the issue promptly to avoid further damage.
7. Will resetting the trouble codes clear OBDII code U3012 GMC?
Resetting the trouble codes may temporarily clear the code U3012 GMC, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem.
8. How much does it cost to repair OBDII code U3012 GMC?
The cost to repair code U3012 GMC can vary depending on the specific cause of the issue. It is recommended to consult a qualified mechanic or dealership for an accurate diagnosis and repair estimate.
9. Can a DIY enthusiast fix OBDII code U3012 GMC?
While some DIY enthusiasts may have the skills to diagnose and repair code U3012 GMC, it is recommended to seek professional help, especially when dealing with electrical issues or control module replacements to ensure proper repair and safety.
10. Are there any recalls related to OBDII code U3012 GMC?
Recalls related to code U3012 GMC are specific to certain vehicle models and years. It is advisable to check with the manufacturer or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any relevant recalls for your vehicle.
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