Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Inspection [12/2017 - ]: Procedure
- INSPECT ENGINE COOLANT TEMPERATURE SENSOR WARNING:
- Do not put your hands into the water that has been heated for the inspection.
- Touching the heated water could result in burns.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition D23-1 - D23-2 20°C (68°F) 2.32 to 2.59 kΩ 80°C (176°F) 0.310 to 0.326 kΩ NOTE:If checking the engine coolant temperature sensor in water, be careful not to allow water to contact the terminals. After checking, wipe the water off the engine coolant temperature sensor.
If the result is not as specified, replace the engine coolant temperature sensor.
*a Component without harness connected
(Engine Coolant Temperature Sensor)
- INSPECT E.F.I. ENGINE COOLANT TEMPERATURE SENSOR WARNING:
- Do not put your hands into the water that has been heated for the inspection.
- Touching the heated water could result in burns.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance (for Front)
Tester Connection Condition Specified Condition D21-1 - D21-2 20°C (68°F) 2.32 to 2.59 kΩ 80°C (176°F) 0.310 to 0.326 kΩ Standard Resistance (for Rear)
Tester Connection Condition Specified Condition D20-1 - D20-2 20°C (68°F) 2.32 to 2.59 kΩ 80°C (176°F) 0.310 to 0.326 kΩ NOTE:If checking the E.F.I. engine coolant temperature sensor in water, be careful not to allow water to contact the terminals. After checking, wipe the water off the E.F.I. engine coolant temperature sensor.
If the result is not as specified, replace the E.F.I. engine coolant temperature sensor.
*A for Front *B for Rear *a Component without harness connected
(E.F.I. Engine Coolant Temperature Sensor)
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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