• Check Engine Light is on
• Battery performance issues
• Possible charging system problems
• Faulty battery temperature sensor
• Wiring issues such as shorts or open circuits
• Faulty PCM (Powertrain Control Module)
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics II
• P0516
• P0518
Battery Temperature Sensor Circuit High
This code means that the car's computer thinks the sensor that checks the battery's temperature is getting a signal that's too high. It's like a thermometer reading a temperature that's way too hot, even if it's not.
The P0517 code is triggered when the Powertrain Control Module (PCM) detects a voltage signal from the battery temperature sensor that is higher than expected.
The battery temperature sensor monitors the temperature of the battery to ensure it operates within safe limits. If the sensor sends a voltage signal to the PCM that is higher than the predetermined threshold, the PCM will set the P0517 code. This could indicate a problem with the sensor itself, the wiring, or the PCM.
• Use an OBD-II scanner to verify the code.
• Inspect the battery temperature sensor and its wiring for damage.
• Test the voltage signal from the sensor with a multimeter.
• Replace the battery temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regularly inspect battery and sensor connections.
• Ensure battery terminals are clean and tight.
• Check for updates on PCM software.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Regular maintenance can prevent sensor issues.
Check with the vehicle manufacturer for warranty coverage on sensors and PCM.
This code has been reported in various models over the years, often related to sensor or wiring issues.
Moderate – While the vehicle may still operate, addressing the issue promptly can prevent further battery or charging system problems.
Ignoring this code may lead to battery issues, which could affect vehicle reliability and safety.
• Vehicle at operating temperature
• Battery fully charged
The battery temperature sensor is typically located near or on the battery itself.
Q: Can I drive with a P0517 code?
A: While the car may still drive, it's best to address the issue to avoid potential battery or charging problems.
Q: How do I reset the P0517 code?
A: After repairs, the code can be cleared with an OBD-II scanner. If the issue is fixed, it should not return.
