Engine-CodesGeneric – B1517

B1517 Code - Battery Voltage Low Or High

Quick Answer

The B1517 diagnostic trouble code indicates that the battery voltage in the vehicle is either too low or too high. Common causes include Faulty alternator, Corroded or loose battery terminals, Bad battery. 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 indicates Battery Voltage Low Or High.
Common causes
Common causes include Faulty alternator, Corroded or loose battery terminals, Bad battery.
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.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code B1517 Description

The B1517 diagnostic trouble code indicates that the battery voltage in the vehicle is either too low or too high. This can have a significant impact on the performance of the vehicle as the battery voltage is essential for powering various electrical components and systems in the vehicle. If the battery voltage is too low, it can lead to issues such as difficulty starting the engine, dimming lights, and poor performance of electronic systems. On the other hand, if the battery voltage is too high, it can cause damage to sensitive electronic components and systems in the vehicle.

OBDII Code B1517 - Battery Voltage Low Or High
B1517 Code - Battery Voltage Low Or High

Common Causes of B1517

  1. Faulty alternator
  2. Corroded or loose battery terminals
  3. Bad battery
  4. Wiring or connection issues
  5. Faulty voltage regulator

Symptoms of B1517

  1. Difficulty starting the engine
  2. Dimming headlights and interior lights
  3. Erratic behavior of electronic systems
  4. Battery warning light on the dashboard
  5. Engine stalling or hesitation

How to Fix B1517

  1. Check the battery voltage using a multimeter to determine if it is too high or too low.
  2. Inspect the alternator and voltage regulator for any signs of damage or malfunction.
  3. Clean and tighten the battery terminals to ensure a good connection.
  4. Replace the battery if it is found to be faulty.
  5. Repair or replace any damaged wiring or connections in the charging system.

Cost to Fix B1517

The typical repair costs for addressing a battery voltage low or high issue can range from $100 to $500, depending on the specific cause of the problem and the parts needed for repair. It's important to note that diagnosis time and labor rates can vary, so it's recommended to check with local auto repair shops for a more accurate estimate.

Tech Notes for B1517

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

Need more information about the B1517 code?

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Code B1517 Information for Specific Makes

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 Code

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

- Common symptoms include issues with starting the vehicle, dimming lights, erratic electrical behavior, and potential warning lights on the dashboard.

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

- The code B1517 can be triggered by a faulty alternator, a weak or failing battery, loose or corroded battery terminals, or issues with the vehicle's electrical system.

3. How can I diagnose the cause of OBDII code B1517?

- To diagnose the cause of code B1517, it is recommended to perform a thorough inspection of the battery, alternator, and electrical connections. Testing the battery voltage and charging system can help pinpoint the issue.

4. Can a bad battery cause OBDII code B1517 to appear?

- Yes, a weak or failing battery can trigger code B1517 due to fluctuations in voltage levels. It is important to ensure the battery is in good condition and properly charged.

5. What are some repair tips for addressing OBDII code B1517?

- Repair tips for code B1517 may include checking and tightening battery connections, testing the alternator output, replacing a faulty battery, or repairing any damaged wiring in the electrical system.

6. Is it safe to continue driving with OBDII code B1517 present?

- It is not recommended to ignore OBDII code B1517, as it can lead to potential issues with the vehicle's electrical system and cause further damage. It is best to address the underlying problem promptly.

7. Can a DIY enthusiast fix OBDII code B1517 at home?

- Depending on the cause of the code, some DIY enthusiasts may be able to address code B1517 by checking and replacing the battery, inspecting the alternator, or verifying the integrity of the electrical connections.

8. How much does it typically cost to repair OBDII code B1517?

- The cost of repairing OBDII code B1517 can vary depending on the underlying issue. Costs may range from a simple battery replacement to more extensive repairs involving the alternator or electrical system.

9. Will disconnecting the battery reset OBDII code B1517?

- Disconnecting the battery may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear once the vehicle is driven and the system detects the problem again.

10. Can extreme weather conditions affect OBDII code B1517?

- Yes, extreme weather conditions, especially cold weather, can impact battery performance and trigger OBDII code B1517 due to fluctuations in voltage levels. It is important to monitor the battery in such conditions.

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