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 thinks there's a problem with a sensor that checks the temperature of the liquid used to cool the battery in a hybrid or electric car.
The code indicates an issue with the range or performance of the temperature sensor that monitors the coolant for the hybrid/EV battery pack.
The P2D53 code is triggered when the Powertrain Control Module (PCM) detects a problem with the circuit range or performance of the Hybrid/EV Battery Pack Coolant Temperature Sensor C. This sensor is responsible for providing the PCM with data about the temperature of the coolant used to regulate the battery pack's temperature.
• Check Engine Light illuminated
• Reduced battery performance
• Overheating of the battery pack
• Faulty coolant temperature sensor
• Wiring issues or poor connections in the sensor circuit
• Malfunctioning PCM
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, second generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the sensor.
• Test the sensor's resistance and compare it to specifications.
• Replace the faulty coolant temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM 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 electrical connections periodically
Sensor Issue
• Avoid driving the vehicle until the issue is resolved to prevent battery damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with the vehicle manufacturer for warranty coverage on hybrid/EV components.
This code has become more common with the increased use of hybrid and electric vehicles, highlighting the importance of battery cooling systems.
Moderate – Addressing this issue promptly can prevent further damage to the battery pack.
Ignoring this code could lead to battery overheating, which may pose safety risks.
• Vehicle must be in a safe and stable condition.
• Ensure the battery pack is not excessively hot.
The coolant temperature sensor is typically located near the battery pack, integrated into the cooling system.
Q: Can I drive with a P2D53 code?
A: It's not recommended to drive with this code active, as it could lead to battery damage.
Q: How often should the coolant temperature sensor be checked?
A: It should be checked during regular maintenance intervals or if a related warning light appears.
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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.