Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer found a problem with the temperature sensors in the battery. It's like when your thermometer at home shows a different temperature than your friend's thermometer, even though they are in the same room.
The vehicle's control module has detected a discrepancy between the readings of two temperature sensors (E and F) in the hybrid or electric vehicle's battery pack.
The P0C72 code is triggered when the Powertrain Control Module (PCM) or Battery Energy Control Module (BECM) detects that the temperature readings from sensors E and F within the hybrid or EV battery pack are not correlating as expected. This could indicate a fault in one or both sensors, a wiring issue, or a problem with the battery pack itself.
• Check Engine Light illuminated
• Reduced battery performance
• Possible overheating of the battery
• Faulty temperature sensor E or F
• Wiring issues or poor connections
• Battery pack malfunction
PCM: Powertrain Control Module
BECM: Battery Energy Control Module
• Use an OBD-II scanner to verify the code.
• Inspect the wiring and connections to the temperature sensors.
• Test the temperature sensors for proper operation.
• Replace faulty temperature sensor(s).
• Repair or replace damaged wiring or connectors.
• Inspect and repair the battery pack if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks on the battery system.
• Ensure proper ventilation and cooling of the battery pack.
• Monitor battery performance regularly.
Sensor Issue
• Have the vehicle inspected by a professional if this code appears.
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
Repairs may be covered under the vehicle's hybrid or EV battery warranty.
This code has been more commonly reported as hybrid and electric vehicles become more prevalent, highlighting the importance of battery management systems.
Moderate – It's important to address this issue to prevent potential battery damage.
Driving with a malfunctioning battery temperature sensor can lead to overheating and potential safety hazards. Always ensure repairs are performed by qualified technicians.
• Vehicle must be in a safe environment for testing.
• Battery pack should be at normal operating temperature.
The temperature sensors are located within the hybrid or EV battery pack, typically under the vehicle or in the rear compartment.
Q: Can I drive my car with this code?
A: It's not recommended to drive with this code active as it may lead to battery overheating and damage.
Q: How do I know if my battery temperature sensors are faulty?
A: A diagnostic test using an OBD-II scanner and a multimeter can help determine if the sensors are faulty.
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