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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 1056 (Automatic Transaxle Overhaul & Diagnostics) >> Re4F04B >> DTC P0734 A/T 4TH Gear Function >> Diagnostic Trouble Code (DTC) Confirmation Procedure >> With Consult-II

With Consult-II

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. Start engine and select "DATA MONITOR" mode for "A/T" with CONSULT-II.
    Fig 1: CONSULT-II Display - SELECT SYSTEM
    G00739962Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Make sure that output voltage of A/T fluid temperature sensor is within the range below.

    FLUID TEMP SEN: 0.5 - 1.5V 

    If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the voltage (cool down the fluid).

  3. Select "4TH GR FNCTN P0734" of "DTC WORK SUPPORT" mode for "A/T" with CONSULT-II and touch "START".
  4. Accelerate vehicle to 55 to 65 km/h (34 to 40 MPH) under the following condition and release the accelerator pedal completely.
    Fig 2: CONSULT-II Display - SELECT DIAG MODE
    G00739963Courtesy of NISSAN MOTOR CO., U.S.A.

    THROTTLE POSI: Less than 5.5/8 (at all times during step 4) 

    Selector lever: D position 

    • Check that "GEAR" shows "3" after releasing pedal.
  5. Depress accelerator pedal steadily with 1.0/8 - 2.0/8 of "THROTTLE POSI" from a speed of 55 to 65 km/h (34 to 40 MPH) until "TESTING" has turned to "STOP VEHICLE" or "COMPLETED". (It will take approximately 3 seconds.)

    If the check result NG appears on CONSULT-II screen, go to "DIAGNOSTIC PROCEDURE ".

    If "STOP VEHICLE" appears on CONSULT-II screen, go to following step.

    • Check that "GEAR" shows "4" when depressing accelerator pedal with 1.0/8 - 2.0/8 of "THROTTLE POSI".
    • If "TESTING" does not appear on CONSULT-II for a long time, select "SELF-DIAG RESULTS" for "ENGINE". In case a 1st trip DTC other than P0734 is shown, refer to applicable "TROUBLE DIAGNOSIS FOR DTC".
    Fig 3: Voltage/Temperature Graph
    G00739964Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Stop vehicle.
  7. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
    Fig 4: Gear Shifting Pattern Chart
    G00739965Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Make sure that "OK" is displayed. (If "NG" is displayed, refer to "DIAGNOSTIC PROCEDURE ".)

    Refer to "DIAGNOSTIC PROCEDURE "

    Refer to "SHIFT SCHEDULE "

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