Description

CAUTION:

When replacing the TCM, always replace it with a new one. The functions controlled by the TCM does not operate properly in case of reuse of the TCM from another Nissan Sentra vehicle.

Perform the following work when TCM is replaced. For work procedure, refer to Work Procedure.

WORK BEFORE TCM REPLACEMENT

• Calibration data (IP characteristics value) saving

  Note:

  TCM performs accurate control by retrieving data (inherent characteristic value) of each solenoid. For this reason, it is necessary to save data of current TCM in CONSULT before replacing the TCM. After this, the saved data must be written in new TCM.

• TCM part number saving

WORK AFTER TCM REPLACEMENT

• TCM programming

  Note:

  Since Nissan Sentra vehicle specifications are not yet written in a new TCM, it is necessary to write them with CONSULT.

• Calibration data (IP characteristics value) writing

  Note:

  TCM performs accurate control by retrieving data (inherent characteristic value) of each solenoid. The data stored in CONSULT must be written in new TCM.

• Decel G sensor calibration

• Clutch point learning

• Torque converter clutch point learning

• Select learning (Drive/Reverse learning)

• Vechie condition checking

Work Procedure

• ASIST on the CONSULT has been synchronized to the current date.

• All CONSULT software updates (if any) have been installed.

1. SAVE CALIBRATION DATA (IP CHARACTERISTICS VALUE)

   Note:

   Save necessary data stored in TCM in CONSULT according to the following instructions:

   With CONSULT

   1. Ignition switch OFF and wait for 10 seconds.

   2. Ignition switch ON.

   3. Connect CONSULT.

   4. Select “Work Support” in “TRANSMISSION”.

   5. Select “READ IP CHARA - REPLACEMENT TCM”.

   6. Touch “START”.

      Note:

      When the calibration data has been saved to the CONSULT, the message “Data saved successfully” will be displayed and the current status will indicate “Completed”.

   7. Touch “END” to finish.

   >>

   GO TO 2.

2. SAVE ‘OPERATION LOG’

   With CONSULT

   Save Operation Log, according to the procedure of “Programming” in CONSULT Operation Manual.

   Note:

   • TCM part number is saved in Operation Log saved in CONSULT.

   • If “TRANSMISSION” is not displayed and TCM part number cannot be saved on CONSULT, GO TO 3.

   >>

   GO TO 3.

3. REPLACE TCM

   1. Ignition switch OFF.

   2. Replace TCM. Refer to Removal and Installation.

   >>

   GO TO 4.

4. CHECK ‘OPERATION LOG’

   With CONSULT

   Check Operation Log saved before replacing TCM, according to the procedure of “Programming” in CONSULT Operation Manual.

   Note:

   For the Nissan Sentra vehicle that the programming is to be performed, check if Operation Log of Vehicle Identification Number (VIN) is in Saved Data List.

   Is there an applicable Operation Log in the Saved Data List?

   YES >>

   GO TO 5.

   NO >>

   GO TO 6.

5. PERFORM TCM PROGRAMMING

   With CONSULT

   Perform TCM programming, according to “Programming” of CONSULT Operation Manual. Refer to CONSULT Operation Manual.

   CAUTION:

   During programming, maintain the following conditions:

   • Ignition switch: ON

   • Electric load: OFF

   • Brake pedal: Not depressed

   • Battery voltage: 12 – 13.5 V (Be sure to check the value of battery voltage by selecting “BATTERY VOLT” in “Data monitor” of CONSULT.)

   >>

   GO TO 8.

6. READ IN TCM ROM DATA ID BY ‘EPC LINKED’

   With CONSULT

   Obtain TCM ROM data ID by EPC (service parts catalog), according to the procedure of ‘EPC linked’ in CONSULT Operation Manual. Refer to CONSULT Operation Manual.

   Note:

   "EPC linked’" allows an appropriate programming by obtaining TCM ROM data ID from EPC (service parts catalog) even when the part number cannot be obtained from the old TCM used before replacing with a new one.

   >>

   GO TO 7.

7. PERFORM TCM PROGRAMMING (EPC LINKED)

   With CONSULT

   Perform TCM programming according to the procedure of 'EPC linked' in CONSULT Operation Manual. Refer to CONSULT Operation Manual.

   CAUTION:

   During programming, maintain the following conditions:

   • Ignition switch: ON

   • Electric load: OFF

   • Brake pedal: Not depressed

   • Battery voltage: 12 – 13.5 V (Be sure to check the value of battery voltage by selecting “BATTERY VOLT” in “Data monitor” of CONSULT.)

   >>

   GO TO 8.

8. WRITE CALIBRATION DATA (IP CHARACTERISTICS VALUE)

   Note:

   Write data saved in CONSULT into a new TCM according to the following instructions:

   With CONSULT

   1. Verify Nissan Sentra vehicle is in “Park” (P), then the ignition switch is OFF and wait for 10 seconds.

   2. Ignition switch ON.

   3. Select “Work Support” in “TRANSMISSION”.

   4. Select “WRITE IP CHARA - REPLACEMENT TCM”.

   5. Touch “START”.

   6. Touch “START” again.

   7. Touch “YES” on the Information window.

      Note:

      When the calibration data has been written to the TCM, the message “Data writing completed successfully” will be displayed and the current status will indicate “Complete”.

   8. Touch “END”.

   >>

   GO TO 9.

9. PERFORM DECEL G SENSOR CALIBRATION

   Perform Decel G Sensor Calibration. Refer to Work Procedure.

   >>

   GO TO 10.

10. PERFORM CLUTCH POINT LEARNING

    Perform Clutch Point Learning. Refer to Description.

    >>

    GO TO 11.

11. PERFORM TORQUE CONVERTER CLUTCH POINT LEARNING

    Perform Torque Converter Clutch Point Learning. Refer to Description.

    >>

    GO TO 12.

12. PERFORM SELECT LEARNING (DRIVE/REVERSE LEARNING)

    Note:

    Always perform Clutch Point Learning before Select Learning.

    Perform Select Learning. Refer to Work Procedure.

    >>

    GO TO 13.

13. CHECK Nissan Sentra Vehicle CONDITION

    With CONSULT

    After completing the TCM replacement work, check if the Nissan Sentra vehicle is in normal condition.

    1. Clear any DTCs that may have set.

    2. Ignition switch OFF and wait for 10 seconds.

    3. Start the engine and confirm that no CVT system warning is displayed.

    4. Drive the Nissan Sentra vehicle in D position at 55 km/h (34 MPH) or more for 20 seconds. After that, confirm that DTC is not detected.

    >>

    WORK END