Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer can't find the temperature information it needs from the engine's coolant. It's like trying to cook without knowing how hot the oven is.
The engine control module (ECM) is not receiving the engine coolant temperature (ECT) input necessary for auto-configuration.
The P063F code indicates that the ECM has not received the necessary input from the engine coolant temperature sensor for auto-configuration. This input is critical for the ECM to adjust various engine parameters for optimal performance and efficiency.
• Check Engine Light is on
• Poor fuel economy
• Engine overheating
• Faulty engine coolant temperature sensor
• Wiring issues such as open or short circuits
• Faulty ECM
ECM: Engine Control Module
ECT: Engine Coolant Temperature
• Use an OBD-II scanner to confirm the code.
• Inspect the engine coolant temperature sensor and its wiring.
• Test the sensor for proper operation using a multimeter.
• Replace the engine coolant temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly check and maintain coolant levels.
• Inspect sensor wiring during routine maintenance.
• Ensure the cooling system is functioning properly.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Regular maintenance can prevent such issues.
Check with your vehicle manufacturer for warranty coverage on the ECM and sensors.
This code has been associated with failures in vehicles with aging cooling systems or poor maintenance.
Moderate – Addressing this issue can prevent further engine damage and improve performance.
Driving with an unresolved engine code may lead to further damage and is not recommended.
• Engine at operating temperature
• Vehicle on a level surface
The engine coolant temperature sensor is typically located near the thermostat housing on the engine.
Q: Can I drive with a P063F code?
A: It's not recommended as it may lead to engine overheating and other issues.
Q: How do I reset the Check Engine Light after repair?
A: Use an OBD-II scanner to clear the code after confirming the repair.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal 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.