AutoCodes – GMC – B1517 GMC

B1517 GMC 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 GMC 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 8,167

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 GMC 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 GMC - Battery Voltage Low Or High - AutoCodes.com — B1517 GMC Code - Battery Voltage Low Or High

What does this mean?

What are the Possible Causes of the DTC B1517 GMC?

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 GMC?

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 GMC 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 GMC code?

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

Need Help with the Code?

Get the B1517 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

B1517 2014 GMC Sierra — Battery Voltage Low Or High
B1517 2015 GMC Sierra — Battery Voltage Low Or High
B1517 2016 GMC Sierra — Battery Voltage Low Or High
B1517 2017 GMC Sierra — Battery Voltage Low Or High
B1517 2018 GMC Sierra — Battery Voltage Low Or High

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 GMC Code

1. What are the common symptoms of OBDII code B1517 GMC (Battery Voltage Low Or High)?

The common symptoms include issues with starting the vehicle, dimming or flickering lights, and fluctuations in the performance of electrical components.

2. What are the possible causes of OBDII code B1517 GMC?

The code B1517 can be triggered by a faulty battery, alternator problems, loose or corroded battery connections, or issues with the voltage regulator.

3. How can I diagnose the OBDII code B1517 GMC?

Diagnosing the code involves checking the battery voltage using a multimeter, inspecting the battery connections, testing the alternator output, and ensuring the voltage regulator is functioning correctly.

4. Can a low battery voltage trigger the OBDII code B1517 GMC?

Yes, a low battery voltage can trigger the code B1517 as it indicates a potential issue with the battery or the charging system of the vehicle.

5. How can I repair OBDII code B1517 GMC?

Repairing the code may involve replacing the battery if it is old or faulty, repairing any damaged or loose battery connections, testing and potentially replacing the alternator, and ensuring the voltage regulator is working properly.

6. Is it safe to continue driving with the OBDII code B1517 GMC triggered?

It is not recommended to continue driving with the code triggered, as it can lead to further electrical issues and potential vehicle breakdowns.

7. Can extreme weather conditions affect the triggering of OBDII code B1517 GMC?

Yes, extreme weather conditions can impact the battery performance and trigger the code B1517, especially in very hot or cold temperatures.

8. How long does it typically take to repair OBDII code B1517 GMC?

The repair time can vary depending on the exact cause of the issue, but it can usually be resolved within a few hours to a day by a qualified mechanic.

9. Will resetting the OBDII system clear the B1517 GMC code?

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

10. Can a DIY enthusiast repair OBDII code B1517 GMC, or should it be done by a professional mechanic?

While some basic checks like inspecting battery connections can be done by a DIY enthusiast, diagnosing and repairing the code B1517 often requires the expertise of a professional mechanic to ensure the correct repair is performed.