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Home >> Nissan-Datsun >> 2005 >> Altima SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Automatic Transmission (Re4F04B)) >> DTC P0731: A/T 1ST Gear Function >> Diagnostic Trouble Code Confirmation Procedure >> Testing Condition:

Testing Condition:

WARNING: This page is about a different variant/trim than selected.

Always drive vehicle on a level road to improve the accuracy of test. 

After the repair, perform the following procedure to confirm the malfunction is eliminated.

With CONSULT-II 

  1. Start engine and select "DATA MONITOR" mode for "A/T" with CONSULT-II.
  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)

  3. Select "1ST GR FNCTN P0731" of "DTC WORK SUPPORT" mode for "A/T" with CONSULT-II and touch "START".
    Fig 1: Data Monitor A/T Display
    G02521651Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Accelerate vehicle to 20 to 25 km/h (12 to 16 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 

    • Check that "GEAR" shows "2" after releasing pedal. 
  5. Depress accelerator pedal to WOT (more than 7.0/8 of "THROTTLE POSI") quickly from a speed of 20 to 25 km/h (12 to 16 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 2: Diag Mode Display
    G02521652Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 3: Gear Shifting Reference Chart
    G02521653Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 4: Gear Shifting Graph
    G02521654Courtesy 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 ".