AutoCodes – Generic – B1517:03

B1517:03 Code - Battery Voltage Low

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 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: B1517:03 indicates Battery Voltage Low.
Common causes: Common causes include Low 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 2,702

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 12, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1517:03 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 B1517:03 - Battery Voltage Low - AutoCodes.com — B1517:03 Code - Battery Voltage Low

What does this mean?

What are the Possible Causes of the DTC B1517:03?

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

How to Fix the DTC B1517:03?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1517:03 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.

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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 B1517:03 Code

1. What are the common symptoms of OBDII code B1517:03 (Battery Voltage Low)?

- Common symptoms include dimming lights, difficulty starting the vehicle, erratic electrical behavior, and warning lights on the dashboard related to battery voltage.

2. What are the possible causes of the OBDII code B1517:03 (Battery Voltage Low)?

- Possible causes include a weak or failing battery, faulty alternator, loose or corroded battery connections, parasitic battery drain, or issues with the vehicle's charging system.

3. How can I diagnose the OBDII code B1517:03 (Battery Voltage Low)?

- Diagnosing this code typically involves checking the battery voltage with a multimeter, testing the alternator output, inspecting battery connections for corrosion or looseness, and scanning for other related codes.

4. Can driving with the OBDII code B1517:03 (Battery Voltage Low) cause damage to the vehicle?

- Continuing to drive with a low battery voltage can potentially damage the vehicle's electrical components, lead to stalling, and result in complete battery failure if not addressed promptly.

5. What are some repair tips for resolving the OBDII code B1517:03 (Battery Voltage Low)?

- Repair tips include replacing the battery if it's old or weak, checking and tightening battery connections, testing the alternator for proper function, addressing any parasitic drains, and ensuring the charging system is functioning correctly.

6. Is it safe to reset the OBDII code B1517:03 (Battery Voltage Low) without fixing the underlying issue?

- While resetting the code may temporarily turn off the warning light, it's crucial to address the root cause of the low battery voltage to prevent further issues and potential breakdowns.

7. How often should I check the battery and charging system to prevent the OBDII code B1517:03 (Battery Voltage Low)?

- It's recommended to have the battery and charging system checked regularly as part of routine maintenance, especially before long trips or if you notice any symptoms of low battery voltage.

8. Can extreme weather conditions affect the likelihood of triggering the OBDII code B1517:03 (Battery Voltage Low)?

- Yes, extreme hot or cold weather can put additional strain on the battery and charging system, increasing the chances of experiencing low battery voltage issues and triggering the OBDII code.

9. Are there any specific vehicles more prone to experiencing the OBDII code B1517:03 (Battery Voltage Low)?

- While any vehicle can potentially encounter low battery voltage issues, older vehicles with aging batteries or charging systems may be more susceptible to triggering this OBDII code.

10. How much does it typically cost to repair the OBDII code B1517:03 (Battery Voltage Low)?

- The cost of repairing the code can vary depending on the specific cause, but common repairs such as replacing a battery or alternator, checking connections, and addressing parasitic drains can range from $100 to $500 or more.