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Home >> Infiniti >> 2004 >> I35 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P0453: EVAP System Pressure Sensor >> DTC Confirmation Procedure >> Testing Condition:
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Testing Condition:

Always perform test at a temperature of 5° C (41° F) or more. 

With CONSULT-II

  1. Start engine and warm it up to normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Turn ignition switch ON.
  4. Select DATA MONITOR mode with CONSULT-II.
    Fig 1: Displaying CONSULT-II DATA MONITOR Screen
    G00786903Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Make sure that FUEL T/TEMP SE is more than 0° C (32° F).
  6. Start engine and wait at least 20 seconds.
  7. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  .

WITH GST 

  1. Start engine and warm it up to normal operating temperature.
  2. Check that voltage between ECM terminal 75 (Fuel tank temperature sensor signal) and ground is less than 4.2V.
  3. Fig 2: Checking That Voltage Between ECM Terminal 75 And Ground
    G00786904Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Turn ignition switch OFF and wait at least 10 seconds.
  5. Start engine and wait at least 20 seconds.
  6. Select MODE 7 with GST.
  7. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  .