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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 831 (Automatic Transmission) >> DTC P0731: Improper Shifting To 1ST Gear Position >> Description >> Testing Conditions: >> With CONSULT-II

With CONSULT-II

WARNING: This page is about a different car, the 2003 Nissan Pathfinder. 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 (Select System Display)
    G02032864Courtesy 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: 0.4 - 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).

    Fig 2: CONSULT-II (Select Diag Mode Display)
    G02032865Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Select "1ST GR FNCTN P0731" of "DTC WORK SUPPORT" mode for "A/T" with CONSULT-II and touch "START".
  4. Accelerate vehicle to 10 to 20 km/h (6 to 12 MPH) under the following condition and release the accelerator pedal completely.

    THROTTLE POSI: Less than 1.0/8 (at all times during step 4) 

    Selector lever: D position (OD "ON") 

    • Check that "GEAR" shows "2" after releasing pedal. 
      Fig 3: Fluid Temperature Sensor Specification Graph
      G02032866Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Depress accelerator pedal to WOT (more than 7.0/8 of "THROTTLE POSI") quickly from a speed of 10 to 20 km/h (6 to 12 MPH) until "TESTING" changes 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 the following step.

    • Check that "GEAR" shows "1" when depressing accelerator pedal to WOT. 
    • 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 P0731 is shown, refer to applicable "TROUBLE DIAGNOSIS FOR DTC". 
  6. Stop vehicle.
  7. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
    Fig 4: Malfunction Existence Chart
    G02032867Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 5: DTC P0731 Malfunctioning
    G02032868Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Make sure that "OK" is displayed. (If "NG" is displayed, refer to DIAGNOSTIC PROCEDURE )

    Refer to "shift schedule ".

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