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Engine-Codes – GMC – B1517 2017 GMC Sierra

B1517 2017 GMC Sierra Code - Battery Voltage Low Or High

Quick Answer

The B1517 diagnostic trouble code for a 2017 GMC Sierra indicates that the battery voltage in the vehicle's electrical system is either too high or too low. Common causes include Faulty alternator, Old or worn-out battery, Loose or corroded battery connections. 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
B1517 2017 GMC Sierra indicates Battery Voltage Low Or High.
Common causes
Common causes include Faulty alternator, Old or worn-out battery, Loose or corroded battery connections.
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 06, 2024
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Code B1517 2017 GMC Sierra Description

The B1517 diagnostic trouble code for a 2017 GMC Sierra indicates that the battery voltage in the vehicle's electrical system is either too high or too low. This can lead to various issues with the vehicle's performance and electrical systems. Battery voltage is crucial for powering various components in the vehicle, such as the starter motor, lights, and electronic systems. A low or high voltage can disrupt the proper functioning of these components, leading to issues such as hard starting, dim lights, and electrical malfunctions.

OBDII Code B1517 2017 GMC Sierra - Battery Voltage Low Or High
B1517 2017 GMC Sierra Code - Battery Voltage Low Or High

Common Causes of B1517 2017 GMC Sierra

  1. Faulty alternator
  2. Old or worn-out battery
  3. Loose or corroded battery connections
  4. Electrical system malfunction
  5. Voltage regulator issues

Symptoms of B1517 2017 GMC Sierra

  1. Difficulty starting the vehicle
  2. Dim or flickering lights
  3. Electrical malfunctions (e.g., radio cutting out, power windows not working)
  4. Check engine light illuminated
  5. Reduced fuel efficiency

How to Fix B1517 2017 GMC Sierra

  1. Begin by checking the battery voltage using a multimeter to determine if it is too high or too low.
  2. Inspect the alternator for any signs of damage or malfunction. Replace if necessary.
  3. Check the battery connections for corrosion or looseness. Clean and tighten as needed.
  4. Test the voltage regulator to ensure it is functioning correctly. Replace if faulty.
  5. If the issue persists, consult with a professional mechanic for a more in-depth diagnosis and repair.

Cost to Fix B1517 2017 GMC Sierra

The cost of repairing a B1517 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. Typically, replacing a faulty alternator can cost between $400 and $800, while a new battery may range from $100 to $200. Labor costs can add an additional $100 to $200, depending on the shop's hourly rates. It's important to note that these are rough estimates, and actual costs may vary. It's recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.

What does this mean?

Tech Notes for B1517 2017 GMC Sierra

- B1517 03: Battery Voltage Low Voltage
- B1517 07: Battery Voltage High Voltage
- B1517 5A : Battery Voltage Not Plausible

Need more information about the B1517 2017 GMC Sierra code?

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Need Help with the Code?

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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 B1517 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B1517 in a 2017 GMC Sierra?

When this code is triggered, you may experience issues such as dimming lights, erratic electrical behavior, difficulty starting the vehicle, or a warning message related to battery voltage.

2. What can cause the OBDII code B1517 indicating low or high battery voltage in a 2017 GMC Sierra?

Possible causes include a faulty battery, alternator issues, loose or corroded battery connections, a defective voltage regulator, or wiring problems.

3. How serious is the OBDII code B1517 in a 2017 GMC Sierra?

Ignoring this code can lead to potential damage to the vehicle's electrical system, including the battery and other components. It is important to address the underlying issue promptly.

4. Can a DIY enthusiast repair OBDII code B1517 in a 2017 GMC Sierra?

Depending on the cause, some DIY repairs are possible, such as checking and tightening battery connections, inspecting the battery for damage, or testing the alternator. However, more complex issues may require professional diagnosis and repair.

5. What are some tips for troubleshooting and repairing OBDII code B1517 in a 2017 GMC Sierra?

Start by checking the battery voltage with a multimeter, inspecting the battery connections, testing the alternator output, and examining the wiring for any visible damage or corrosion.

6. Is it safe to continue driving a 2017 GMC Sierra with the OBDII code B1517 active?

It is not recommended to drive the vehicle with this code active, as it can lead to unexpected electrical failures and potential safety hazards while on the road.

7. How can I reset the OBDII code B1517 in a 2017 GMC Sierra after performing repairs?

After addressing the underlying issue causing the code, you can reset it using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the error code.

8. What should I do if the OBDII code B1517 persists in a 2017 GMC Sierra after attempted repairs?

If the code persists after troubleshooting and repair attempts, it is advisable to seek professional assistance from a certified mechanic or dealership for further diagnosis and resolution.

9. Can extreme weather conditions affect the likelihood of triggering OBDII code B1517 in a 2017 GMC Sierra?

Yes, extreme temperatures can impact battery performance and contribute to voltage fluctuations, potentially triggering this code in your vehicle.

10. How often should I check the battery and electrical system in a 2017 GMC Sierra to prevent OBDII code B1517 issues?

Regularly inspecting the battery, connections, and charging system as part of routine maintenance can help prevent issues related to low or high battery voltage and the triggering of OBDII code B1517.

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