AutoCodes – GMC – B1517 2014 GMC Sierra

B1517 2014 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 2014 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 235

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 11, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1517 2014 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 2014 GMC Sierra - Battery Voltage Low Or High - AutoCodes.com — B1517 2014 GMC Sierra Code - Battery Voltage Low Or High

What does this mean?

What are the Possible Causes of the DTC B1517 2014 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 2014 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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1517 2014 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 2014 GMC Sierra code?

Need more information on how to fix the B1517 2014 GMC Sierra code? Get Access to Factory Service Manuals

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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 2014 GMC Sierra Code

1. What does OBDII code B1517 mean on a 2014 GMC Sierra?

Code B1517 indicates that the vehicle's battery voltage is either too low or too high, affecting the electrical system's performance.

2. What are the common symptoms of code B1517 on a 2014 GMC Sierra?

Common symptoms include dim or flickering headlights, difficulty starting the engine, electrical accessories malfunctioning, or the battery warning light illuminating.

3. What causes code B1517 to trigger on a 2014 GMC Sierra?

This code can be caused by a failing alternator, a weak or overcharged battery, corroded battery terminals, loose wiring connections, or a faulty voltage regulator.

4. How can I diagnose the cause of code B1517 on my 2014 GMC Sierra?

Start by checking the battery voltage with a multimeter, inspect the alternator output, and look for corroded or loose battery cables and wiring connections.

5. Can a bad alternator cause the B1517 code on a 2014 GMC Sierra?

Yes, a failing alternator can cause either low or high voltage, leading to the B1517 code being set.

6. Is it safe to drive with code B1517 on a 2014 GMC Sierra?

Driving with this code is not recommended, as unstable voltage can damage electrical components or leave you stranded if the battery dies.

7. How do I fix code B1517 on a 2014 GMC Sierra?

Repairs may include replacing the alternator, charging or replacing the battery, cleaning battery terminals, or repairing damaged wiring.

8. What should the normal battery voltage be on a 2014 GMC Sierra?

The normal battery voltage should be around 12.6 volts when the engine is off and between 13.7 to 14.7 volts when the engine is running.

9. Can extreme weather conditions cause code B1517 on a 2014 GMC Sierra?

Yes, extreme cold or heat can strain the battery and alternator, potentially causing voltage issues and triggering the B1517 code.

10. Do I need a professional mechanic to fix code B1517 on my 2014 GMC Sierra?

While some issues like cleaning terminals or checking connections can be done at home, diagnosing and repairing alternator or voltage regulator problems is best handled by a professional.