AutoCodesGMC – B1517 2016 GMC Sierra

B1517 2016 GMC Sierra Code - Battery Voltage Low Or High

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 or High 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
B1517 2016 GMC Sierra indicates Battery Voltage Low Or High.
Common causes
Common causes include Low or High 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.
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Code Popularity 304
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 11, 2022
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Code B1517 2016 GMC Sierra Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Damage to components, and incorrect data can occur when the voltage is out of range. The vehicle has multiple Control Modules that will set this Diagnostic Trouble Code (DTC).
OBDII Code B1517 2016 GMC Sierra - Battery Voltage Low Or High - AutoCodes.com
B1517 2016 GMC Sierra Code - Battery Voltage Low Or High

What are the Possible Causes of the DTC B1517 2016 GMC Sierra?

  • Low or High Battery Voltage
  • Faulty Control Module
  • Control Module harness is open or shorted
  • Control Module circuit poor electrical connection

How to Fix the DTC B1517 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1517 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 B1517 2016 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 2016 GMC Sierra Code

1. What does OBDII code B1517 mean on a 2016 GMC Sierra?

Code B1517 indicates that the vehicle's control module has detected the battery voltage is either too low or too high, outside the normal operating range.

2. What are the common symptoms of code B1517 in a 2016 GMC Sierra?

Symptoms may include a battery warning light on the dashboard, dim or flickering headlights, difficulty starting the engine, or intermittent electrical issues.

3. What causes the B1517 code to appear on a 2016 GMC Sierra?

Common causes include a weak or failing battery, a faulty alternator, corroded or loose battery terminals, or issues with wiring and connections in the charging system.

4. Can I drive my 2016 GMC Sierra with the B1517 code?

It’s not recommended, as electrical issues could worsen and potentially leave you stranded. Address the issue as soon as possible to avoid further damage.

5. How do I diagnose the B1517 code on my 2016 GMC Sierra?

Start by checking the battery voltage with a multimeter, inspecting the battery terminals for corrosion, and testing the alternator’s output to ensure it’s functioning properly.

6. Does a weak battery always cause the B1517 code?

Not always. While a weak battery is a common cause, the code can also be triggered by a failing alternator, poor wiring, or loose connections in the charging system.

7. How do I fix the B1517 code on a 2016 GMC Sierra?

Repairs may involve replacing a failing battery or alternator, cleaning or tightening battery terminals, or repairing damaged wiring in the charging system.

8. How much does it cost to fix the B1517 code on a GMC Sierra?

Costs vary depending on the issue. Replacing a battery costs $100–$300, while an alternator replacement can range from $400–$800. Minor fixes like cleaning terminals are inexpensive.

9. Can extreme weather cause the B1517 code to appear?

Yes, extreme cold or heat can strain the battery and charging system, potentially triggering a low or high voltage condition.

10. How can I prevent the B1517 code from recurring?

Regularly maintain your battery and charging system by keeping terminals clean, testing the battery and alternator periodically, and replacing components as they age.

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