B1517:5A Code - Battery Voltage Not Plausible
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 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
- B1517:5A indicates Battery Voltage Not Plausible.
- Common causes
- Common causes include 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.
Code B1517:5A Description
What are the Possible Causes of the DTC B1517:5A?
- Battery Voltage
- Faulty Control Module
- Control Module harness is open or shorted
- Control Module circuit poor electrical connection
How to Fix the DTC B1517:5A?
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 B1517:5A 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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Frequently Asked Questions about B1517:5A Code
What does OBDII code B1517:5A mean?
Code B1517:5A indicates that the vehicle's control module has detected an issue with the plausibility of the battery voltage signal, meaning the reported voltage is outside the expected range or inconsistent.
What are the common symptoms of code B1517:5A?
Common symptoms include warning lights such as the battery or check engine light, electrical system malfunctions, difficulty starting the vehicle, or dimming lights.
What causes the B1517:5A code to appear?
Possible causes include a failing battery, loose or corroded battery terminals, a faulty alternator, wiring issues, or a malfunctioning control module.
Can a weak battery trigger the B1517:5A code?
Yes, a weak or dying battery can cause voltage irregularities, leading to this code.
How do I diagnose the B1517:5A code?
Start by checking the battery voltage and condition, inspect the battery terminals and connections for corrosion or looseness, and test the alternator output. Use a scan tool to verify live data for voltage readings.
Can the alternator cause the B1517:5A code?
Yes, a faulty alternator may provide inconsistent or low voltage, triggering this code.
Is it safe to drive with the B1517:5A code?
Driving with this code is not recommended, as it may indicate electrical system issues that could lead to breakdowns or further damage.
How can I fix the B1517:5A code?
Repairs may include cleaning or tightening battery terminals, replacing the battery, repairing damaged wiring, or replacing a faulty alternator or control module.
Can a software update resolve the B1517:5A code?
In some cases, a software update for the vehicle’s control module may address voltage reading inconsistencies, but this depends on the make and model of the vehicle.
Do I need professional help to fix the B1517:5A code?
If basic checks like cleaning connections or replacing the battery don’t resolve the issue, it’s best to consult a professional to diagnose and repair more complex electrical problems.
Discuss the causes and fixes for B1517:5A OBDII Code
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