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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
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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.