Engine-Codes.com
Engine-Codes – GMC – B1445 2014 GMC Sierra

B1445 2014 GMC Sierra Code - Control Module Voltage Output Circuit

Quick Answer

The B1445 diagnostic trouble code for a 2014 GMC Sierra relates to the Control Module Voltage Output Circuit. Common causes include Loose or corroded wiring connections leading to the control module, Damage to the control module components due to water intrusion or physical impact, Issues with the vehicle's battery, such as low voltage or a faulty charging system. 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
B1445 2014 GMC Sierra indicates Control Module Voltage Output Circuit.
Common causes
Common causes include Loose or corroded wiring connections leading to the control module, Damage to the control module components due to water intrusion or physical impact, Issues with the vehicle's battery, such as low voltage or a faulty charging system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1445 2014 GMC Sierra Description

The B1445 diagnostic trouble code for a 2014 GMC Sierra relates to the Control Module Voltage Output Circuit. This code indicates that there is an issue with the voltage output from the control module, which could potentially affect various components and systems within the vehicle. The control module is a crucial part of the vehicle's electronic system, as it is responsible for managing and coordinating the operation of different functions such as engine performance, transmission shifting, and emissions control.

OBDII Code B1445 2014 GMC Sierra - Control Module Voltage Output Circuit
B1445 2014 GMC Sierra Code - Control Module Voltage Output Circuit

Common Causes of B1445 2014 GMC Sierra

  1. Loose or corroded wiring connections leading to the control module.
  2. Damage to the control module components due to water intrusion or physical impact.
  3. Issues with the vehicle's battery, such as low voltage or a faulty charging system.
  4. Electrical short circuits or other wiring faults within the control module circuitry.
  5. Software issues or programming errors within the control module.

Symptoms of B1445 2014 GMC Sierra

  1. Dashboard warning lights illuminate, such as the check engine light or battery light.
  2. Erratic behavior in the vehicle's performance, such as stalling or rough idling.
  3. Difficulty starting the vehicle or experiencing intermittent electrical issues.
  4. Poor fuel efficiency or unexpected changes in engine behavior.
  5. In extreme cases, the vehicle may not start or operate at all.

How to Fix B1445 2014 GMC Sierra

  1. Begin by conducting a thorough visual inspection of the wiring connections leading to the control module. Look for any signs of damage, corrosion, or loose connections.
  2. Use a multimeter to test the voltage output from the control module to determine if it is within the manufacturer's specified range.
  3. If the voltage output is not within the correct range, inspect the control module for any physical damage or signs of water intrusion. Replace the control module if necessary.
  4. Check the vehicle's battery and charging system to ensure they are functioning correctly. Replace or repair any faulty components as needed.
  5. Clear the diagnostic trouble code from the vehicle's computer system using a scan tool and conduct a test drive to confirm that the issue has been resolved.

Cost to Fix B1445 2014 GMC Sierra

The typical repair costs for addressing a Control Module Voltage Output Circuit issue can vary depending on the specific cause of the problem and the extent of the damage. In general, parts and labor for this type of repair can range from $200 to $500 or more. It's important to note that diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. Therefore, it is advisable to contact local repair shops or dealerships for a more accurate estimate based on the specific circumstances.

Need more information about the B1445 2014 GMC Sierra code?

Need more information on how to fix the B1445 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1445 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 B1445 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code B1445 in a 2014 GMC Sierra?

The common symptoms include issues with the vehicle's power windows, power locks, or other electrical components not functioning properly.

2. What could cause the OBDII code B1445 in a 2014 GMC Sierra?

The code B1445 typically indicates a fault in the control module voltage output circuit, which could be caused by a wiring issue, a faulty control module, or a poor connection.

3. How can I diagnose the OBDII code B1445 in my 2014 GMC Sierra?

Diagnosing the B1445 code involves checking the wiring connections, inspecting the control module, and using a multimeter to test the voltage output of the circuit.

4. Can I still drive my 2014 GMC Sierra with the OBDII code B1445 present?

It is not recommended to drive the vehicle with the B1445 code present, as it can affect the proper functioning of essential electrical components in the vehicle.

5. How do I repair the OBDII code B1445 in my 2014 GMC Sierra?

To repair the B1445 code, you may need to repair or replace damaged wiring, replace the faulty control module, or ensure all connections are secure and free of corrosion.

6. Are there any DIY tips for fixing the OBDII code B1445 in a 2014 GMC Sierra?

While it is possible to diagnose the issue yourself, repairing the B1445 code may require specialized tools and expertise, so it is advisable to consult a professional mechanic.

7. How much does it cost to repair the OBDII code B1445 in a 2014 GMC Sierra?

The cost of repairing the B1445 code can vary depending on the extent of the damage and the specific components that need to be repaired or replaced. It is recommended to obtain quotes from local mechanics for an accurate estimate.

8. Will resetting the OBDII code B1445 in my 2014 GMC Sierra make it go away permanently?

Resetting the code may temporarily clear the error code, but if the underlying issue is not addressed, the code is likely to reappear. It is essential to diagnose and repair the root cause of the problem.

9. Can extreme weather conditions cause the OBDII code B1445 in a 2014 GMC Sierra?

Extreme weather conditions can potentially exacerbate existing wiring or connection issues, leading to the triggering of the B1445 code.

10. Is it safe to continue driving if the OBDII code B1445 in my 2014 GMC Sierra keeps coming back after resetting?

Continuing to drive the vehicle without addressing the root cause of the B1445 code can potentially lead to further electrical issues and may compromise the safety and performance of the vehicle. It is best to have the issue diagnosed and repaired promptly.

Discuss the causes and fixes for B1445 2014 GMC Sierra OBDII Code

Submit a New Comment

Code B1445 2014 GMC Sierra comments

No comments found for this page.