ITB13055A

Classification:
Reference:
Date:
AT13-020a
ITB13-055a
March 31, 2016
CVT / TCM CALIBRATION DATA “WRITE” PROCEDURE
APPLIED VEHICLES:
2013 JX35 (L50)
2014 – 2016 QX60 (L50)
APPLIED VIN / DATE:
2013 JX35 – vehicles built after 5N1AL0M(* *)DC 343902 / March 26, 2013
2014 – 2016 QX60 - ALL
APPLIED TRANSMISSION: CVT
NOTE: Does not apply to QX60 Hybrid
SERVICE INFORMATION
The Service Procedure (starting on page 2) in this bulletin contains the steps to perform TCM Calibration Data
“Write” Procedures. These procedures are used when a complete CVT is replaced, or a CVT control valve
(valve body) is replaced, or a Transmission Control Module (TCM) is replaced.
NOTE: The following information may be helpful when performing the TCM Calibration Data “Write”
Procedures:
 When starting the calibration “write” procedure in CONSULT-III (C-III) plus, and after selecting START
under Work Support, the C-III plus screen may only blink.
If this occurs, close ASIST (if open) and then select Start again.
 If there is still no change: reboot the CONSULT PC, keep ASIST closed, and restart this procedure
from step 1.
 If error “STOPPED, no comm. with ECU” shows when trying to write calibration data, verify that the
vehicle is in park (P).
Infiniti Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are properly trained
individuals who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. NOTE: If you believe
that a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Infiniti dealer to determine if this
applies to your vehicle.
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SERVICE PROCEDURE
IMPORTANT: If replacing the TCM only, skip to page 14:
(SAVE / WRITE CALIBRATION DATA WHEN REPLACING THE TCM)
ERASE / WRITE CALIBRATION DATA WHEN REPLACING CVT or VALVE BODY
NOTE:

Use the following steps when a complete CVT, or valve body is replaced.

Also use the following steps if the TCM was replaced with a complete CVT or valve body.
Before starting, make sure:

ASIST on the CONSULT PC has been freshly synchronized to the current date.

All C-III plus software updates (if any) have been installed.
1. Obtain the calibration file disk (provided with the new CVT or valve body).
2. Match the numbers on the disk with the new CVT or new valve body and QR label.

See pages 3 and 4 for number matching examples.
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If a complete CVT is being replaced; match the following number (calibration file)
Example

Disc (CD) provided with the new CVT.
Figure A
Example

QR label on the new CVT.
Figure B
Example

Calibration file number on the CVT case or
label.
Skip two
digits
Figure C
IMPORTANT: All three of the above numbers must be the same (they must match).
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If a new valve body is being replaced; match the following number (calibration file)
Example

Disc (CD) provided with the new valve
body.
Figure D
Example

QR label provided with the new valve
body.
Figure E
Example

Calibration file number on the valve body.
Figure F
IMPORTANT: All three of the above numbers must be the same (they must match).
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3. Connect the external disk drive to the CONSULT PC.
NOTE: Use the external disk drive provided with the C-III plus kit.
4. Load the CD into the external disc drive.
5. Connect the CONSULT PC to the vehicle with the VI and then open / start C-III plus.
 Make sure ASIST and other programs are closed.
6. After the plus VI to be recognized, select Diagnosis (All Systems).
VI is
recognized
Step
6
Figure 1
7. Navigate C-III plus to TRANSMISSION > Work Support.
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8. Select the scroll arrow shown Figure 2.
Step 8
Figure 2
9. Print a copy of the screen shown in Figure 3 and attach it to the repair order.
NOTE:
 Make sure to print page 1 of 7 (1 / 7).
 This screen print is used for warranty documentation.
10. Select scroll arrow shown Figure 3.
Step 10
Screen print must
show the VIN
Example
Print page 1 of 7 (1 / 7)
Figure 3
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11. Select WRITE IP CHARA – REPLACEMENT AT/CVT and then Start.
Step 11
Figure 4
IMPORTANT: When starting the calibration “write” procedure in C-III plus, and after selecting Start under
Work Support, the C-III screen may only blink.

If this occurs, confirm ASIST is closed and then perform step 11 above.
 If there is still no change: reboot the CONSULT PC, keep ASIST closed, and restart this procedure
from step 1.
 If error “STOPPED, no comm. with ECU” shows when trying to write calibration data, verify that the
vehicle is in park (P).
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12. Select OK.
Figure 5
13. Select My Computer.
Figure 6
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14. Select DVD/CD-RW Drive (F:)
Figure 7
15. Highlight the File and then select Open.
Figure 8
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16. Verify that the serial number (calibration file number) matches the numbers from step 2 on page 2 (see
Figures on pages 3 and 4).

If the numbers do not match, call TECH LINE.
17. Select Next.
NOTE: If error message “Stopped, No Comm with ECU” is displayed, confirm that the vehicle is in
Park.
Step 17
Step 16
Figure 9
18. Before selecting Start, follow the directions in Figure 10.
 Do not follow the directions on the C-III plus screen.
First:
 IGN ON, ENG OFF
 PRESS BRAKE PEDAL
 SHIFT INTO REVERSE (R)
 DEPRESS THROTTLE PEDAL ½
WAY AND HOLD
Then
 SELECT START on the C-III plus
screen
Figure10
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19. Follow the on screen instructions.
Figure 11
20. Follow the on screen instructions.
Make sure to put the
transmission in Park;
NOTE: a slight delay will occur before
“P” will display on the instrument cluster
Touch Start = Touch Write
Figure 12
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21. After Complete, select End.
Step 20
Figure 13
22. Select Home to return to the screen shown in Figure 1 page 5.
23. Perform steps 6 – 9, starting on page 5.
24. Attach the second screen print to the repair order.
NOTE: Screen prints are used for warranty documentation
25. Clear any DTCs that may have set and then test drive the vehicle.
NOTE: Any DTCs that will not clear or that are set during the test drive are not covered by this bulletin.
Refer to the appropriate Service Manual for further diagnostic information
26. If the valve body was replaced, perform the Drive / Reverse Learn Procedure on the next page.
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Drive / Reverse Learn Procedure
NOTE: If a complete CVT was replaced, this procedure is not needed.
1. Set the parking brake.
2. Start the Engine.
3. Wait 5 seconds.
4. Shift to Neutral.
5. Shift to Drive and wait for transmission engagement.
6. Repeat steps 4 and 5, ten (10) times.
7. Shift to Neutral.
8. Shift to Reverse and wait for transmission engagement.
9. Repeat steps 7 and 8, ten (10) times.
10. Shift to Park and turn the ignition OFF.
END
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SAVE / WRITE CALIBRATION DATA WHEN REPLACING THE TCM
NOTE:
 The following steps are used if TCM only is replaced.
 If the CVT or valve body is being replaced, go back to page 2.
 Before starting, make sure:

ASIST on the CONSULT PC has been freshly synchronized to the current date.

All C-III plus software updates (if any) have been installed.
Save Calibration Data Before TCM Replacement
1. Connect the CONSULT PC to the vehicle.
2. Open / start C-III plus.
 Make sure ASIST and other programs are closed.
3. Wait for the plus VI to be recognized.

The serial number will display when the plus VI is recognized.
4. Select Diagnosis (One System).
Step
4
VI is
recognized
Figure A1
5. Navigate C-III plus to TRANSMISSION >> Work Support.
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6. Select READ IP CHARA – REPLACEMENT TCM, and then Start.
Step 6
Figure A2
7. Select Start.
Step 7
Figure A3
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8. When the calibration data has been saved to the CONSULT PC, the message “Data saved successfully”
will be displayed and Current status will indicate Completed (see Figure A4).
9. Select End.
Step 9
Figure A4
10. Replace the TCM.
11. After the TCM has been replaced, go to Write Calibration Data After TCM Replacement on the next page.
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Write Calibration Data After TCM Replacement
12. After the TCM has been replaced, select WRITE IP CHARA – REPLACEMENT TCM, then Start.
Step 12
Figure A5
IMPORTANT: When starting the calibration “write” procedure in C-III plus, and after selecting Start under
Work Support, the C-III plus screen may only blink.

If this occurs, confirm ASIST is closed and then perform step 12 above.
 If there is still no change: reboot the CONSULT PC, keep ASIST closed, and restart the procedure
from the beginning.
 If error “STOPPED, no comm. with ECU” shows when trying to write calibration data, verify that the
vehicle is in park (P).
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13. Select Start again.
Step 13
Figure A6
14. Select Yes.
Figure A7
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15. When the calibration data has been written to the TCM, the message “Data writing completed
successfully” will be displayed and Current status will indicate Complete
(Figure A8).
16. After Complete, select End to finish.
Step 16
Figure A8
17. Clear any DTCs that may have set and then test drive the vehicle.
NOTE: Any DTCs that will not clear or that are set during the test drive are not covered by this bulletin.
Refer to the appropriate Service Manual for further diagnostic information.
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