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HOMESERVICE MANUALSNISSAN-DATSUN2004ALTIMA S, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEM - 2.5LDTC P0125: ECT SENSORCOMPONENT INSPECTIONENGINE COOLANT TEMPERATURE SENSOR
2004 Nissan-Datsun Altima S, Automatic

Engine Coolant Temperature Sensor

2004 Nissan-Datsun Altima S, AutomaticSECTION Engine Coolant Temperature Sensor
  1. Check resistance between engine coolant temperature sensor terminals 1 and 2 as shown in the figure.
    Fig 1: Checking Engine Coolant Temperature Sensor
    G02884297Courtesy of NISSAN MOTOR CO., U.S.A.

    < Reference data > 

    REFERENCE DATA

    Engine coolant temperature °C (°F) Voltage(1) V Resistance kΩ
    -10 (14) 4.4 7.0 - 11.4
    20 (68) 3.5 2.1 - 2.9
    50 (122) 2.2 0.68 - 1.00
    90 (194) 0.9 0.236 - 0.260
    (1) These data are reference values and are measured between ECM terminal 73 (Engine coolant temperature sensor) and ground.
    Fig 2: Identifying Resistance & Temperature Graph
    G02884298Courtesy of NISSAN MOTOR CO., U.S.A.
  2. If NG, replace engine coolant temperature sensor.
RENDER: 1.0x

NO RELATED

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