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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0452: EVAP Control System Pressure Sensor >> Diagnostic Procedure >> 3. Check EVAP Control System Pressure Sensor Power Supply Circuit

3. Check EVAP Control System Pressure Sensor Power Supply Circuit

  1. Turn ignition switch ON.
  2. Check voltage between EVAP control system pressure sensor terminal 1 and ground with CONSULT-II or tester.
    1. Voltage: Approximately 5V 
Fig 1: Checking Voltage Between EVAP Control System Pressure Sensor Terminal 1 & Ground
G00760972Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK : GO TO 5. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT .

NG : GO TO 4.