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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

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.