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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 836 (Continuously Variable Transmission (CVT)) >> DTC P1778: Step Motor - Function >> DTC Confirmation Procedure
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DTC Confirmation Procedure

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
  • Always drive vehicle at a safe speed.
  • Be careful not to rev engine into the red zone on the tachometer.
  • Before starting DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE, confirm Hi or Mid or Low fixation by PRI SPEED and VEHICLE SPEED on DATA MONITOR MODE.
  • If hi-geared fixation, go to diagnostic procedure soon.
NOTE: If DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE has been previously performed, always turn ignition switch OFF and wait at least 5 seconds before performing the next test.

After the repair, touch ERASE on SELF-DIAG RESULTS and then perform the following procedure to confirm the malfunction is eliminated.

WITH CONSULT-II 

  1. Turn ignition switch ON and select DATA MONITOR mode for TRANSMISSION with CONSULT-II.
  2. Make sure that output voltage of CVT fluid temperature sensor is within the range below.

    FLUID TEMP SEN: 1.0 - 2.0V 

    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 1: CONSULT-II TRANSMISSION Display
    G01199444Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Select DATA MONITOR mode for TRANSMISSION with CONSULT-II.
  4. Start engine and maintain the following conditions for at least 30 consecutive seconds.

    TEST START FROM 0 km/h (0 MPH) 

    CONSTANT ACCELERATION: Keep 30 sec or more 

    VEHICLE SPEED: 10 km/h (6 MPH) or more 

    ACC PEDAL OPEN: More than 1/8 

    Selector lever: D position 

    ENG SPEED: 450 rpm or more 

    If the check result is NG, GO TO DIAGNOSTIC PROCEDURE .

    Fig 2: CONSULT-II SELECT DIAG MODE Display
    G01199445Courtesy of NISSAN MOTOR CO., U.S.A.

WITH GST 

Follow the procedure With CONSULT-II.