Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there is a problem with the sensor that checks the temperature of the hybrid or electric car's battery. It's like a thermometer that isn't working right, sometimes showing the wrong temperature.
The P0C37 code is triggered when the vehicle's computer detects an intermittent or erratic signal from the battery temperature sensor F. This sensor monitors the temperature of the hybrid or EV battery to ensure it operates within safe limits.
The battery temperature sensor F is responsible for monitoring the temperature of the hybrid or electric vehicle's battery pack. An intermittent or erratic signal indicates that the sensor is not providing a consistent reading, which could affect the battery management system's ability to regulate temperature, potentially leading to overheating or underperformance.
• Check engine light is on
• Reduced battery performance
• Possible overheating of the battery
• Faulty battery temperature sensor
• Damaged or corroded wiring/connectors
• ECU (Engine Control Unit) software issue
ECU: Engine Control Unit, a computer that controls various aspects of the vehicle's engine.
OBD-II: On-Board Diagnostics, a standardized system in cars for self-diagnosing and reporting.
• Use an OBD-II scanner to verify the P0C37 code.
• Inspect the battery temperature sensor and its wiring for damage.
• Test the sensor's output with a multimeter.
• Replace the faulty battery temperature sensor.
• Repair or replace damaged wiring/connectors.
• Update the ECU software if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks
• Ensure proper battery cooling
• Avoid extreme temperatures
Sensor Issue
• Do not ignore the check engine light.
• Have your vehicle inspected by a professional.
• Monitor battery performance closely.
Check with your vehicle manufacturer for specific warranty coverage related to hybrid/EV components.
This code has been associated with issues in hybrid and electric vehicles as they age, particularly in models with high mileage.
Moderate – While the vehicle may still operate, ignoring this issue could lead to battery damage over time.
Driving with a malfunctioning battery temperature sensor can lead to battery overheating, which may pose a safety risk.
• Vehicle must be at operating temperature.
• Ensure the battery is charged.
The battery temperature sensor is typically located within or near the battery pack of the hybrid or electric vehicle.
Q: Can I drive my car with a P0C37 code?
A: It's not recommended to drive for extended periods with this code, as it may lead to battery issues.
Q: How do I know if my battery temperature sensor is faulty?
A: A diagnostic scan showing a P0C37 code and symptoms like reduced battery performance are indicators.
Budget · Enhanced code reader
A wired color-screen reader with readiness hotkeys, live data, code definitions, and data logging.
A dependable first-pass scanner for verifying the code and checking live data or readiness monitors.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for voltage, continuity, and basic electrical checks while narrowing down the fault.
View on Amazon
Universal · Socket set
A practical metric and SAE socket set for many diagnostic teardowns and component replacements.
Useful for common under-hood access and removal work during diagnosis or repair.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.