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Home >> Infiniti >> 2003 >> Q45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 201 (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 Q45. However, it is still accessible from the selected car via links, so may be relevant.

Check resistance as shown in the figure.

Fig 1: Checking Resistance
G00760684Courtesy of NISSAN MOTOR CO., U.S.A.

< Reference data > 

Fig 2: Reference Data (1 Of 2)
G00760685Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Reference Data (1 Of 2)
G00760686Courtesy of NISSAN MOTOR CO., U.S.A.

If NG, replace engine coolant temperature sensor.