ITB13-055b

Classification:
Reference:
Date:
AT13-020b
ITB13-055b
April 26, 2017
CVT / TCM CALIBRATION DATA “WRITE” PROCEDURE
This bulletin has been amended. APPLIED VEHICLES has been updated. SERVICE INFORMATION has been amended.
A REPAIR TABLE has been added. Procedural steps have been added to SERVICE PROCEDURE.
Discard all previous versions of this bulletin.
APPLIED VEHICLES:
2013 JX35 (L50)
2014 – 2017 QX60 (L50)
APPLIED VIN / DATE:
2013 JX35 – vehicles built after 5N1AL0M(* *)DC 343902 / March 26, 2013
2014 – 2017 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 assembly is replaced, a CVT control
valve (valve body) is replaced, or a Transmission Control Module (TCM) is replaced.

Refer to REPAIR OVERVIEW on page 2. This is a quick reference to determine which procedures
need to be performed.
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 then 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 retailer to determine if this
applies to your vehicle.
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REPAIR OVERVIEW
PROCEDURE
VALVE BODY
REPLACEMENT
TCM REPLACEMENT
CVT ASSEMBLY
REPLACEMENT
Erase/Write
Calibration Data
Required
Not needed
Required
Save/Write
Calibration Data
Not needed
Required
Not needed
G-Sensor Learning
Not needed
Required
Not needed
Clutch Point Learning
Required
Required
Not needed
Select Learning
Required
Required
Required
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 CVT assembly, or valve body is replaced.

Also use the following steps if the TCM was replaced with a CVT assembly 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 disc (provided with the new CVT or valve body).
2. Match the numbers on the disc 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 disc drive to the CONSULT PC.
NOTE: Use the external disc 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 plus VI, and then open / start C-III plus.
 Make sure ASIST and other programs are closed.
6. After the plus VI is recognized, select Diagnosis (All Systems).
Step 6: plus 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 select 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 then 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, contact 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 21
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.
NOTE: Any DTCs that will not clear are not covered by this bulletin. Refer to the appropriate Service Manual for
further diagnostic information.
26. If the valve body was replaced, perform CLUTCH POINT LEARNING under “Transmission Work Support”
in C-III plus.

Follow the steps for CLUTCH POINT LEARNING exactly as presented in C-III plus.

If the procedure is not performed correctly, the vehicle may not move when the CVT is placed in gear.
 If this condition occurs, cycle the ignition OFF/ON, and then perform CLUTCH POINT LEARNING
again.
27. If the CVT assembly was replaced, do not perform CLUTCH POINT LEARNING.
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28. Perform Select Learning (Drive / Reverse Learning):
a. Set the parking brake.
b. Start the engine, and then wait five (5) seconds.
c. Move the shift selector to the N position and hold more than two (2) seconds, and then move it to the D
position and wait for transmission engagement.
d. Repeat step 28c ten times.
e. Move the shift selector to the N position and hold for more than two (2) seconds, and then move it to
the R position and wait for transmission engagement.
f.
Repeat step 28e ten times.
g. Move the shift selector to the P position, and then turn the ignition OFF.
29. Test drive the vehicle.
END
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SAVE / WRITE CALIBRATION DATA WHEN REPLACING THE TCM
NOTE:
 The following steps are used only if the TCM 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
Step 3: plus 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 select 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, and then select
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 then 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 (see Figure A8).
16. After Complete, select End to finish.
Step 16
Figure A8
17. Clear any DTCs that may have set.
NOTE: Any DTCs that will not clear are not covered by this bulletin. Refer to the appropriate Service Manual for
further diagnostic information.
18. Perform G-Sensor Learning under “Transmission Work Support” in C-III plus.
19. Perform CLUTCH POINT LEARNING under “Transmission Work Support” in C-III plus.
NOTE: Skip this step if the CVT assembly was replaced.

Follow the steps for CLUTCH POINT LEARNING exactly as presented in C-III plus.

If the procedure is not performed correctly, the vehicle may not move when the CVT is placed in gear.
 If this condition occurs, cycle the ignition OFF/ON, and then perform CLUTCH POINT LEARNING
again.
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20. Perform Select Learning (Drive / Reverse Learning):
a. Set the parking brake.
b. Start the engine, and then wait five (5) seconds.
c. Move the shift selector to the N position and hold for more than two (2) seconds, and then move it to
the D position and wait for transmission engagement.
d. Repeat step 20c ten times.
e. Move the shift selector to the N position and hold for more than two (2) seconds, and then move it to
the R position and wait for transmission engagement.
f.
Repeat step 20e ten times.
g. Move the shift selector to the P position, and then turn the ignition OFF.
21 Test drive the vehicle.
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