B1517 2015 GMC Sierra Code - Battery Voltage Low Or High
Quick Answer
The B1517 diagnostic trouble code for a 2015 GMC Sierra indicates that the battery voltage is either too low or too high. Common causes include Faulty alternator: A malfunctioning alternator can lead to improper charging of the battery, resulting in low or high voltage levels, Corroded battery terminals: Corrosion on the battery terminals can disrupt the flow of electricity, causing voltage irregularities, Faulty battery: A defective battery can lead to voltage fluctuations, especially if it is unable to hold a charge properly. 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 2015 GMC Sierra indicates Battery Voltage Low Or High.
- Common causes
- Common causes include Faulty alternator: A malfunctioning alternator can lead to improper charging of the battery, resulting in low or high voltage levels, Corroded battery terminals: Corrosion on the battery terminals can disrupt the flow of electricity, causing voltage irregularities, Faulty battery: A defective battery can lead to voltage fluctuations, especially if it is unable to hold a charge properly.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B1517 2015 GMC Sierra Description
The B1517 diagnostic trouble code for a 2015 GMC Sierra indicates that the battery voltage is either too low or too high. This can have significant implications for the vehicle's performance and overall functionality. The battery voltage is crucial for powering various electrical components in the vehicle, including the starter motor, lights, radio, and more. If the battery voltage is outside of the normal range, it can lead to issues with starting the vehicle, dimming or flickering lights, erratic behavior of electronic systems, and even potential damage to sensitive components.
Common Causes of B1517 2015 GMC Sierra
- Faulty alternator: A malfunctioning alternator can lead to improper charging of the battery, resulting in low or high voltage levels.
- Corroded battery terminals: Corrosion on the battery terminals can disrupt the flow of electricity, causing voltage irregularities.
- Faulty battery: A defective battery can lead to voltage fluctuations, especially if it is unable to hold a charge properly.
- Wiring issues: Damaged or loose wiring connections can result in voltage spikes or drops, affecting the battery voltage.
- Faulty voltage regulator: The voltage regulator controls the output of the alternator and can malfunction, leading to improper battery charging.
Symptoms of B1517 2015 GMC Sierra
- Difficulty starting the engine
- Dimming or flickering headlights
- Erratic behavior of electronic systems
- Weak or dead battery
- Burning smell coming from the engine compartment
How to Fix B1517 2015 GMC Sierra
- Check the alternator: Test the alternator to ensure it is functioning properly and charging the battery at the correct voltage.
- Inspect battery terminals: Clean any corrosion from the battery terminals and ensure they are securely connected.
- Test the battery: Check the battery's voltage and capacity to determine if it needs to be replaced.
- Check wiring: Inspect the wiring for any damage or loose connections that could be causing voltage irregularities.
- Replace voltage regulator: If the voltage regulator is faulty, it may need to be replaced to ensure proper battery charging.
Cost to Fix B1517 2015 GMC Sierra
The cost of repairing a low or high battery voltage issue can vary depending on the specific cause of the problem. In general, the cost of replacing a faulty alternator can range from $400 to $800, while replacing a battery may cost between $100 and $200. Additionally, the cost of labor for diagnosis and repair can range from $80 to $150 per hour. It's important to consult with a professional mechanic to determine the exact cause of the issue and get an accurate estimate for the repair.
Tech Notes for B1517 2015 GMC Sierra
- B1517 07: Battery Voltage High Voltage
- B1517 5A : Battery Voltage Not Plausible
Need more information about the B1517 2015 GMC Sierra code?
Need more information on how to fix the B1517 2015 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1517 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B1517 2015 GMC Sierra Code
1. What does OBDII code B1517 mean on a 2015 GMC Sierra?
Code B1517 indicates that the vehicle's Body Control Module (BCM) has detected the battery voltage is either too low or too high.
2. What are the common symptoms of code B1517 in a 2015 GMC Sierra?
Symptoms may include dim or flickering lights, difficulty starting the engine, erratic electrical system behavior, and a warning light or message on the dashboard.
3. What causes code B1517 to appear in a 2015 GMC Sierra?
Common causes include a failing battery, a faulty alternator, corroded or loose battery terminals, a poor ground connection, or wiring issues.
4. Can a weak alternator trigger code B1517 in a 2015 GMC Sierra?
Yes, a weak or failing alternator can cause voltage fluctuations that trigger code B1517.
5. How do I fix code B1517 in my 2015 GMC Sierra?
Start by checking the battery and alternator for proper operation. Clean and tighten battery terminals, inspect wiring and grounds, and replace any faulty components as needed.
6. Can a bad battery trigger code B1517 in a 2015 GMC Sierra?
Yes, a bad or failing battery that cannot hold a proper charge can lead to voltage issues and trigger this code.
7. How do I diagnose code B1517 in a 2015 GMC Sierra?
Use a multimeter to check battery voltage (should be 12.4–12.7 volts when off, and 13.7–14.7 volts when running). Inspect the alternator, wiring, and grounds for any issues.
8. Will clearing the code B1517 fix the problem in a 2015 GMC Sierra?
Clearing the code without addressing the underlying issue will not fix the problem, and the code will likely return.
9. Can extreme weather cause code B1517 in a 2015 GMC Sierra?
Yes, extreme cold or heat can affect battery performance and electrical connections, potentially triggering the code.
10. Is it safe to drive a 2015 GMC Sierra with code B1517?
Driving with this code may lead to electrical system failures or a dead battery. It's best to diagnose and fix the issue promptly.
Discuss the causes and fixes for B1517 2015 GMC Sierra OBDII Code
Code B1517 2015 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.