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 is getting a strange signal from the sensor that checks how hot or cold the engine is. It's like when you have a thermometer that says it's really hot when it's actually cold outside.
The Engine Control Module (ECM) detects an abnormal voltage signal from the Engine Coolant Temperature (ECT) Sensor 1, indicating a possible short circuit or shunt.
The P113F code is triggered when the ECM receives an out-of-range signal from the ECT Sensor 1. This sensor is responsible for monitoring the engine's coolant temperature and providing this data to the ECM to help manage engine performance and emissions. A shunt condition suggests a potential short to ground or power, causing incorrect readings.
• Check Engine Light illuminated
• Poor fuel economy
• Engine overheating
• Erratic temperature gauge readings
• Faulty ECT sensor
• Wiring issues such as shorts or open circuits
• Corroded or damaged connectors
• Faulty ECM
ECM: Engine Control Module
ECT: Engine Coolant Temperature
• Use an OBD-II scanner to confirm the code.
• Inspect the ECT sensor and its wiring for damage or corrosion.
• Check for proper voltage and ground at the sensor connector.
• Test the ECT sensor resistance with a multimeter.
• Replace the ECT sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools (screwdrivers, pliers)
$100 - $250
Moderate
• Ford Focus
• Chevrolet Cruze
• Toyota Camry
• Regularly inspect and maintain the cooling system.
• Ensure connectors and wiring are clean and secure.
• Replace coolant at recommended intervals.
Sensor Issue
• Do not ignore the Check Engine Light.
• Avoid driving the vehicle if it shows signs of overheating.
• Consult a professional mechanic if unsure about the diagnosis.
Check with the vehicle manufacturer for specific warranty coverage on sensors.
This code has been associated with faulty sensors and wiring issues in various vehicle models over the years.
Moderate – Address the issue soon to prevent potential engine damage.
Driving with a faulty ECT sensor can lead to engine overheating and potential safety hazards.
• Engine must be at operating temperature.
• Ensure all electrical connections are secure.
The ECT sensor is usually located near the thermostat housing or on the cylinder head.
Q: Can I drive with a P113F code?
A: It's not recommended as it may lead to engine overheating and damage.
Q: How do I reset the Check Engine Light after repair?
A: Use an OBD-II scanner to clear the code after repairs are completed.
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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.