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 coolant is in an electric or hybrid car. It's like when a thermometer isn't working right.
The P2B24 code is triggered when the vehicle's powertrain control module (PCM) detects a malfunction in the circuit of the Hybrid/EV Electronics Coolant Temperature Sensor C.
The Hybrid/EV Electronics Coolant Temperature Sensor C is responsible for monitoring the temperature of the coolant used to cool the electronics in a hybrid or electric vehicle. This sensor sends data to the PCM to ensure that the electronics are operating within a safe temperature range. A fault in this circuit could lead to improper temperature regulation, potentially affecting vehicle performance.
• Check Engine Light is on
• Overheating of hybrid/EV electronics
• Reduced vehicle performance
• Faulty coolant temperature sensor
• Damaged wiring or connectors
• PCM malfunction
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the sensor for proper operation.
• Replace the faulty coolant temperature sensor.
• Repair or replace damaged wiring/connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks
• Ensure proper coolant levels
• Inspect wiring and connectors periodically
Sensor Issue
• Do not ignore the Check Engine Light.
• Schedule a diagnostic check with a professional.
• Monitor vehicle performance for any changes.
Check vehicle warranty for sensor coverage.
This code has become more common as hybrid and EV vehicles have increased in popularity, highlighting the importance of cooling systems in these vehicles.
Moderate – It should be addressed soon to prevent potential overheating issues.
Driving with an unresolved P2B24 code may lead to further damage or reduced vehicle safety.
• Engine must be running
• Coolant system at operating temperature
The sensor is typically located near the hybrid or EV electronics cooling system, often near the radiator or cooling module.
Q: Can I drive my car with the P2B24 code?
A: It's possible, but not recommended. The electronics may overheat, leading to more serious issues.
Q: How do I reset the Check Engine Light after fixing the issue?
A: You can use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes.
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Universal · Digital multimeter
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Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
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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.