Description

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

WORK BEFORE TCM AND TRANSAXLE ASSEMBLY REPLACEMENT

• TCM part number saving

• New transaxle assembly serial number checking

WORK AFTER TCM AND TRANSAXLE ASSEMBLY 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. For this reason, after replacing TCM and transaxle assembly, it is necessary to write new data in 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 ‘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 2.
   >>

   GO TO 2.

2. CHECK SERIAL NUMBER OF NEW TRANSAXLE ASSEMBLY

   Write down the serial number of new transaxle assembly.

   
   >>

   GO TO 3.

3. REPLACE TCM AND TRANSAXLE ASSEMBLY

   1. Ignition switch OFF.

   2. Replace TCM and transaxle assembly.

   • TCM: Removal and Installation

   • Transaxle assembly: 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?

   >>

   GO TO 5.

   >>

   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) - 1

   Note:

   Write data of new solenoid in TCM according to the following instructions:

   With CONSULT

   1. Ignition switch ON.

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

   3. Select “WRITE IP CHARA - INPUT SERIAL NUMBER”.

   4. Write data to the TCM according to the instructions on the CONSULT screen.

      Note:

      When the calibration data has been written to the TCM, the current status will indicate “Complete”.

   5. Touch “End”.

   Is the calibrationdata written successfully?

   YES >>

   GO TO 12.

   NO >>

   GO TO 9.

9. CHECK PRESENCE OF CD

   Make sure the CD is included with the new transaxle assembly.

   Is the CD included with the new transaxle assembly?

   YES >>

   GO TO 10.

   No >>

   Retry step 8.

10. CHECK SERIAL NUMBER OF CALIBRATION FILE

    With CONSULT

    1. Ignition switch ON.

    2. Insert the supplied CD into CONSULT.

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

    4. Select “WRITE IP CHARA - REPLACEMENT AT/CVT”.

    5. Select “OK” on the “Select IP characteristics data file” window.

    6. Open the calibration file located on the supplied CD.

    7. Confirm that the serial number (calibration file number) displayed on CONSULT screen matches the serial number on the transaxle assembly.

       Note:

       For the serial number on the transaxle assembly, check the alphanumeric characters in the 1st, 4th through 9th digits. (Example: X23100001 → X100001)

    8. Select “Next” on the “WRITE IP CHARA - REPLACEMENT AT/CVT” Work Support screen.

    >>

    GO TO 11.

11. WRITE CALIBRATION DATA (IP CHARACTERISTICS VALUE) - 2

    Note:

    Write data of new solenoid in TCM according to the following instructions:

    With CONSULT

    1. Ignition switch ON, engine OFF.

    2. Erase memory data from the TCM according to the instructions on the CONSULT screen.

    3. Operate the ignition switch according to the instructions on the CONSULT screen.

    4. Write data to the TCM according to the instructions on the CONSULT screen.

       Note:

       When the calibration data has been written to the TCM, the current status will indicate “Complete”.

    5. Touch “End”.

    >>

    GO TO 12.

12. PERFORM DECEL G SENSOR CALIBRATION

    Perform Decel G Sensor Calibration. Refer to Work Procedure.

    >>

    GO TO 13.

13. PERFORM CLUTCH POINT LEARNING

    Perform Clutch Point Learning. Refer to Description.

    >>

    GO TO 14.

14. PERFORM TORQUE CONVERTER CLUTCH POINT LEARNING

    Perform Torque Converter Clutch Point Learning. Refer to Description.

    >>

    GO TO 15.

15. PERFORM SELECT LEARNING (DRIVE/REVERSE LEARNING)

    Note:

    Always perform Clutch Point Learning before Select Learning.

    Perform Select Learning. Refer to Work Procedure.

    >>

    GO TO 16.

16. CHECK Nissan Sentra Vehicle CONDITION

    With CONSULT

    After completing the TCM and transaxle assembly 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