Engine-CodesGMC – B1405 2017 GMC Sierra

B1405 2017 GMC Sierra Code - Control Module Voltage Reference Output 2 Circuit

Quick Answer

The B1405 code for a 2017 GMC Sierra indicates a problem with the Control Module Voltage Reference Output 2 Circuit. Common causes include Faulty control module, Wiring issues or damaged connectors, Corrosion in the electrical 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
B1405 2017 GMC Sierra indicates Control Module Voltage Reference Output 2 Circuit.
Common causes
Common causes include Faulty control module, Wiring issues or damaged connectors, Corrosion in the electrical 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.
Table of contents Created and updated by William Orellana on Aug 19, 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 B1405 2017 GMC Sierra Description

The B1405 code for a 2017 GMC Sierra indicates a problem with the Control Module Voltage Reference Output 2 Circuit. This code suggests that there is an issue with the voltage reference signal being sent to the control module, which can affect various systems in the vehicle. The control module uses this voltage reference to make critical decisions regarding engine performance, transmission shifting, and other functions. If this voltage reference output is compromised, it can lead to erratic behavior or malfunctions within the vehicle's systems.

OBDII Code B1405 2017 GMC Sierra - Control Module Voltage Reference Output 2 Circuit
B1405 2017 GMC Sierra Code - Control Module Voltage Reference Output 2 Circuit

Common Causes of B1405 2017 GMC Sierra

  1. Faulty control module
  2. Wiring issues or damaged connectors
  3. Corrosion in the electrical system
  4. Defective voltage regulator
  5. Poor ground connection

Symptoms of B1405 2017 GMC Sierra

  1. Check engine light illuminated on the dashboard
  2. Engine running rough or stalling
  3. Transmission shifting erratically
  4. Loss of power or acceleration
  5. Problems with the vehicle's electronic systems (e.g., ABS, traction control)

How to Fix B1405 2017 GMC Sierra

  1. Begin by inspecting the wiring harness and connectors for any visible damage or corrosion.
  2. Test the voltage regulator to ensure it is functioning correctly.
  3. Check the ground connections to ensure they are secure and free of corrosion.
  4. If no visible issues are found, the control module may need to be replaced.
  5. Clear the fault code from the vehicle's computer system and perform a test drive to verify that the issue has been resolved.

Cost to Fix B1405 2017 GMC Sierra

The cost of repairing a Control Module Voltage Reference Output 2 Circuit issue can vary depending on the specific cause of the problem. On average, the repair costs for this type of issue can range from $200 to $500, including parts and labor. However, it is essential to note that labor rates can vary widely depending on the location and type of repair shop. It is advisable to contact local auto repair shops to get a more accurate estimate for this repair.

Tech Notes for B1405 2017 GMC Sierra

B1405:02 Control Module Voltage Reference Output 2 Circuit Short to Ground
B1405:03 Control Module Voltage Reference Output 2 Circuit Low Voltage
B1405:07 Control Module Voltage Reference Output 2 Circuit High Voltage

If the B1405 code is stored in the Seat Memory Control Module, check the Seat Motor and Seat Memory Control Module.

Need more information about the B1405 2017 GMC Sierra code?

Need more information on how to fix the B1405 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1405 2017 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 B1405 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B1405 in a 2017 GMC Sierra?

- Common symptoms include issues with the vehicle's electrical systems, such as erratic behavior from various control modules.

2. What can cause the OBDII code B1405 to trigger in a 2017 GMC Sierra?

- The code may be triggered by a fault in the Control Module Voltage Reference Output 2 circuit, such as a wiring issue or a malfunctioning control module.

3. How can I diagnose the Control Module Voltage Reference Output 2 circuit issue in a 2017 GMC Sierra?

- To diagnose the problem, it is recommended to perform a thorough inspection of the wiring connections, check for any loose or damaged wires, and test the voltage output from the control module.

4. Is it safe to continue driving my 2017 GMC Sierra with the B1405 trouble code?

- It is not recommended to drive the vehicle with the B1405 code present, as it can lead to further electrical issues and potential malfunctions in the control modules.

5. Can I repair the Control Module Voltage Reference Output 2 circuit issue in my 2017 GMC Sierra myself?

- While some DIY enthusiasts may attempt to fix the issue, it is advisable to seek professional help to ensure proper diagnosis and repair of the problem.

6. How much does it typically cost to repair the B1405 OBDII code in a 2017 GMC Sierra?

- The cost of repairs can vary depending on the extent of the issue, but it is advisable to budget for diagnostic fees, parts replacement costs, and labor charges.

7. Will resetting the OBDII code B1405 in my 2017 GMC Sierra make the issue go away?

- Resetting the code may temporarily clear the error, but if the underlying issue is not addressed, the code is likely to reappear.

8. Can a faulty battery or alternator cause the B1405 trouble code in a 2017 GMC Sierra?

- Yes, a weak battery or a failing alternator can affect the voltage reference output and potentially trigger the B1405 code.

9. How long does it take to fix the Control Module Voltage Reference Output 2 circuit issue in a 2017 GMC Sierra?

- The repair time can vary depending on the exact cause of the problem and the complexity of the repair process, but it may take a few hours to a full day to complete.

10. Is the B1405 OBDII code a common issue in 2017 GMC Sierra vehicles?

- While not extremely common, the B1405 code can occur in 2017 GMC Sierra models due to various electrical system issues.

Discuss the causes and fixes for B1405 2017 GMC Sierra OBDII Code

Code B1405 2017 GMC Sierra comments

No comments found for this page.