Engine Coolant Temperature (ECT) Sensor

For engine coolant temperature sensor location, see the SYSTEM/COMPONENT TESTS - 2.4L article. Measure resistance between engine coolant temperature sensor electrical terminals. Ensure resistance is within specification in relation to specified temperature. See Fig 1.

Fig 1: Checking Engine Coolant Temp. (ECT) Sensor Or Intake Air Temp. (IAT) Sensor

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