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Home >> Infiniti >> 2004 >> FX45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 250 (Engine Control System) >> DTC P0128 Thermostat Function >> Component Inspection >> Engine Coolant Temperature Sensor
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Engine Coolant Temperature Sensor

WARNING: This page is about a different car, the 2004 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check resistance between engine coolant temperature sensor terminals 1 and 2 as shown in the figure. See Figure.

    < Reference data > 

    For engine coolant temperature sensor specifications, see Figure and for graph of thermistor performance, see Figure.

  2. If NG, replace engine coolant temperature sensor.
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