B1400 2016 GMC Sierra Code - Control Module Supply Circuit 2
Quick Answer
The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Low battery voltage, Faulty Control Module, Control Module harness is open or shorted. 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
- B1400 2016 GMC Sierra indicates Control Module Supply Circuit 2.
- Common causes
- Common causes include Low battery voltage, Faulty Control Module, Control Module harness is open or shorted.
- 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 B1400 2016 GMC Sierra Description
What are the Possible Causes of the DTC B1400 2016 GMC Sierra?
- Low battery voltage
- Faulty Control Module
- Control Module harness is open or shorted
- Control Module circuit poor electrical connection
How to Fix the DTC B1400 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 B1400 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 B1400 2016 GMC Sierra code?
Need more information on how to fix the B1400 2016 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1400 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B1400 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code B1400 in a 2016 GMC Sierra?
The common symptoms of OBDII code B1400 in a 2016 GMC Sierra include issues with the vehicle's electrical system, such as intermittent power loss, dashboard warning lights illuminating, or difficulty starting the engine.
2. What does OBDII code B1400 indicate in a 2016 GMC Sierra?
OBDII code B1400 in a 2016 GMC Sierra indicates a problem with the Control Module Supply Circuit 2, specifically related to the power supply to a control module in the vehicle.
3. What are the possible causes of OBDII code B1400 in a 2016 GMC Sierra?
Possible causes of OBDII code B1400 in a 2016 GMC Sierra include a faulty control module, damaged wiring or connectors in the supply circuit, or a malfunctioning power source.
4. How can I diagnose OBDII code B1400 in my 2016 GMC Sierra?
To diagnose OBDII code B1400 in a 2016 GMC Sierra, you can use an OBDII scanner to retrieve the specific fault code, inspect the wiring and connectors in the Control Module Supply Circuit 2, and test the power supply to the affected control module.
5. Can OBDII code B1400 in a 2016 GMC Sierra be fixed at home?
Fixing OBDII code B1400 in a 2016 GMC Sierra depends on the underlying cause. Simple fixes like checking and tightening connections may be done at home, but more complex issues like replacing a control module may require professional help.
6. Is it safe to continue driving with OBDII code B1400 in a 2016 GMC Sierra?
It is not recommended to continue driving with OBDII code B1400 in a 2016 GMC Sierra, as it could lead to further electrical system malfunctions or potential safety hazards. It's best to address the issue promptly.
7. How much does it typically cost to repair OBDII code B1400 in a 2016 GMC Sierra?
The cost to repair OBDII code B1400 in a 2016 GMC Sierra can vary depending on the root cause of the issue. Simple fixes like replacing a fuse may be inexpensive, while more complex repairs involving control module replacement can be costly.
8. Are there any preventative measures to avoid OBDII code B1400 in a 2016 GMC Sierra?
Regular vehicle maintenance, including checking the electrical system for loose connections and ensuring proper power supply, can help prevent issues like OBDII code B1400 in a 2016 GMC Sierra.
9. Can a DIY enthusiast with basic automotive knowledge fix OBDII code B1400 in a 2016 GMC Sierra?
A DIY enthusiast with basic automotive knowledge may be able to address simple causes of OBDII code B1400, such as checking and securing connections. However, complex issues may require professional expertise.
10. How long does it typically take to repair OBDII code B1400 in a 2016 GMC Sierra?
The time to repair OBDII code B1400 in a 2016 GMC Sierra varies based on the cause of the issue and the complexity of the repair. Simple fixes can be completed quickly, while more involved repairs may take longer.
Discuss the causes and fixes for B1400 2016 GMC Sierra OBDII Code
Code B1400 2016 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.
