Sensor Test

SENSOR TEST
1. Turn the ignition switch to the OFF position. Disconnect and isolate the battery negative cable. Unplug the temperature sensor wire harness connector.
2. Measure the resistance of the temperature sensor. At -401 °C (-401 °F), the sensor resistance is 336 K Ohms. At 551 °C (1311 °F), the sensor resistance is 2.986 K Ohms. The sensor resistance should read between these two values. If OK, go to the Sensor Circuit Test. If not OK, replace the faulty sensor.