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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1119: Radiator Coolant Temperature Sensor >> Diagnostic Procedure >> 2. Check Radiator Coolant Temperature Sensor Power Supply Circuit
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2. Check Radiator Coolant Temperature Sensor Power Supply Circuit

  1. Disconnect radiator coolant temperature sensor harness connector.
  2. Turn ignition switch ON.
    Fig 1: Locating Radiator Coolant Temperature Sensor
    G00760520Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Check voltage between radiator coolant temperature sensor terminal 1 and ground with CONSULT-II or tester.
    1. Voltage: Approximately 5V 

OK or NG 

OK : GO TO 4.

NG : GO TO 3.

Fig 2: Checking voltage between radiator coolant temperature sensor terminal 1 & ground
G00760521Courtesy of NISSAN MOTOR CO., U.S.A.