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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R Spec V >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Automatic Transaxle - Re4F03B) >> DTC P0734: A/T 4TH Gear Function >> Description >> Diagnostic Trouble Code (DTC) Confirmation Procedure
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Diagnostic Trouble Code (DTC) Confirmation Procedure

WARNING: This page is about a different variant/trim than selected.
CAUTION:
  • Always drive vehicle at a safe speed.
  • If conducting this "DTC CONFIRMATION PROCEDURE" again, always turn ignition switch "OFF" and wait at least 5 seconds before continuing.
  • Be careful not to rev engine into the red zone on the tachometer.
Fig 1: Consult II Display (1 Of 2)
G00899435Courtesy of NISSAN MOTOR CO., U.S.A.
NOTE: If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.

TESTING CONDITION: 

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.

Fig 2: Consult II Display (2 Of 2)
G00899436Courtesy of NISSAN MOTOR CO., U.S.A.

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).

    Fig 3: Temperature Voltage Graph
    G00899437Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Select "4TH GR FNCTN P0734" of "DTC WORK SUPPORT" mode for "A/T" with CONSULT-II and touch "START".
  4. Accelerate vehicle to 45 to 55 km/h (28 to 34 MPH) under the following condition and release the accelerator pedal completely.

    THROTTLE POSI: Less than 5.5/8 (at all times during step 4) Selector lever: D position (OD "ON") 

    • 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 45 to 55 km/h (28 to 34 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-DIAGNOSIS" for "ENGINE". In case a 1st trip DTC other than P0734 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: Normal Shifting Chart
    G00899438Courtesy 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 ".

With GST 

Follow the procedure "With CONSULT-II".

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