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 a sensor that checks how hot or cold the special liquid is that keeps the car's battery cool.
The P2E75 code indicates an issue with the temperature sensor that monitors the coolant used to keep the hybrid or electric vehicle's battery pack at an optimal temperature.
The P2E75 code is triggered when the Powertrain Control Module (PCM) or Battery Management System (BMS) detects a range or performance problem with the Hybrid/EV battery pack coolant temperature sensor D. This sensor is responsible for providing temperature data of the coolant to ensure the battery operates within safe temperature limits.
• Check Engine Light is on
• Reduced battery performance
• Possible overheating of the battery pack
• Faulty coolant temperature sensor
• Wiring issues or poor connections
• Malfunctioning Battery Management System (BMS)
PCM: Powertrain Control Module
BMS: Battery Management System
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the sensor.
• Test the sensor for proper operation.
• Replace the faulty coolant temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the Battery Management System if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks
• Ensure proper coolant levels
• Inspect wiring and connections periodically
Sensor Issue
• Do not ignore the Check Engine Light.
• Avoid driving the vehicle until the issue is resolved to prevent battery damage.
Check with the vehicle manufacturer as hybrid components might be covered under a special warranty.
This code has been reported in hybrid and electric vehicles as they rely heavily on battery management systems.
High – This issue can lead to battery damage if not addressed promptly.
Driving with a malfunctioning battery cooling system can lead to overheating and potential safety hazards.
• Vehicle at operating temperature
• Battery under load conditions
The coolant temperature sensor is typically located near the battery pack or within the battery cooling system.
Q: Can I drive my car with this code?
A: It's not recommended to drive with this code active as it can lead to battery overheating.
Q: How do I reset the Check Engine Light?
A: After repairs, use an OBD-II scanner to clear the code and reset the light.
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Fitment Required · Vehicle-fitment part
Relevant when coolant-temperature and warm-up faults indicate a thermostat-related issue.
Coolant-temperature and warm-up faults often lead to thermostat testing and replacement.
Thermostats are vehicle-specific and should be matched by engine and housing style.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.