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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 412 (Engine Control System) >> DTC P0125: ECT Sensor >> 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 M45. 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.
    Fig 1: Checking Engine Coolant Temperature Sensor Continuity
    G00795779Courtesy of NISSAN MOTOR CO., U.S.A.

    < Reference data > 

    Fig 2: Identifying Engine Coolant Temp Reference Data Information
    G00795780Courtesy of NISSAN MOTOR CO., U.S.A.
  2. If NG, replace engine coolant temperature sensor.