Classification:

Reference:

Date:

AT17-002a

ITB17-008a

April 18, 2017

2017 QX80
SHIFT SHOCK, LACK OF POWER, AND/OR RPM FLUCTUATES
This bulletin has been amended throughout. Please discard previous versions of this bulletin.

APPLIED VEHICLES:

2017 QX80 (Z62)

IF YOU CONFIRM
One or more of the following, or the customer reports one or more of the following:


Transmission shift shock when accelerating enough to create a 7th gear to 3rd gear down shift.



While driving at a steady speed, the engine RPM goes up and down (fluctuates) a small amount.



With light acceleration at lower speeds there is a lack of power; feels like the selected transmission
gear is too high (may also be described as hesitation).

ACTION
1. Refer to step 6 in the SERVICE PROCEDURE to confirm ECM reprogramming applies.
2. Reprogram the ECM, if it applies.
3. Refer to step 22 in the SERVICE PROCEDURE to confirm TCM reprogramming applies.
4. Reprogram the TCM, if it applies.

IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing.
You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to
successfully completing this repair.
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.
1/16

SERVICE PROCEDURE
NOTE:


This procedure will require reprogramming of the ECM and TCM.



Most instructions for reprogramming with CONSULT-III plus (C-III plus) are displayed on the CONSULT
PC screen.



If you are not familiar with the reprogramming procedure, click here. This will link you to the
"CONSULT- III plus (C-III plus) Reprogramming" general procedure.

ECM Reprogram
Preparation for Reprogramming


Take the vehicle for a 10 minute drive in order to meet the
following Idle Air Volume Learn (IAVL) conditions:
 Engine coolant temperature: 70 -100°C
(158 - 212°F)
 Battery voltage: More than 12.9V (At idle)
 Transmission: Warmed up
Figure A
NOTE:


After ECM reprogramming is complete, you will be required to perform Throttle Valve
Closed Position, Idle Air Volume Learn (IAVL), and Accelerator Closed Position.



The above conditions are required for the IAVL to complete.

CAUTION:
 Connect the GR8 to the 12V battery and set to ECM power supply mode.
If the vehicle battery voltage goes below 12.0V or above 15.5V during reprogramming, the ECM
may be damaged.
 Be sure to turn OFF all vehicle electrical loads.
If a vehicle electrical load remains ON, the ECM may be damaged.
 Be sure to connect the AC Adapter.
If the CONSULT PC battery voltage drops during reprogramming, the process will be interrupted
and the ECM may be damaged.
 Turn OFF all external Bluetooth® devices (e.g., cell phones, printers, etc.) within range of the
CONSULT PC and the plus VI. If Bluetooth® signal waves are within range of the CONSULT PC
during reprogramming, reprogramming may be interrupted and the ECM may be damaged.

2/16

ITB17-008a

1. Connect the plus VI to the vehicle and open/start CONSULT-III plus.
2

Confirm the ignition is ON, with engine OFF.

3. Confirm the plus VI is recognized.


The Serial No. will display when the plus VI is recognized.

4. Select Re/programming, Configuration.

Step 3: plus
VI is
recognized

Step
4

Figure 1

5. Follow the on-screen instructions and navigate C-III plus to the screen shown in Figure 2 on the next page.

3/16

ITB17-008a

6. When you get to the screen shown in Figure 2, confirm ECM reprogramming applies as follows:
A. Find the ECM Part Number and write it on the repair order.
NOTE: This is the current ECM Part Number (P/N).

xxxxxxxxxxx xxxxxx

6A: Current P/N

ENGINE
XXXXX -XXXXX

xxxxxxxxxxxxxx
xxxxxxxxxxx xxxxxx
xxxxxxxxxxxxxxxxxx

Figure 2
B. Compare the P/N you wrote down to the numbers in the Current ECM Part Number column in
Table A below.


If there is a match, continue with the reprogramming procedure.



If there is not a match, ECM reprogramming does not apply. Go to TCM reprogram on page 10.

Table A
Model

Current ECM Part Number: 23710 -

2017 QX80

5ZP2B, 5ZP3B, 5ZP4B, 5ZP5B
5ZP2C, 5ZP3C, 5ZP4C, 5ZP5C

4/16

ITB17-008a

7. Follow the on-screen instructions to navigate C-III plus and reprogram the ECM.

NOTE:


In some cases, more than one new P/N for reprogramming is available.
 If more than one new P/N is available, the screen in Figure 3 displays.
 Select and use the reprogramming option that does not have the message “Caution! Use ONLY
with ITBXX-XXX”.



If you get this screen and it is blank (no reprogramming listed), it means there is no reprogramming
available for this vehicle. Close C-III plus and refer back to ASIST for further diagnosis.

xxxxx-xxxxx
xxxxx-xxxxx

xxxxx-xxxxx
xxxxx xxxxx

xxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxx

Figure 3

5/16

ITB17-008a

8. When the screen in Figure 4 displays, reprogramming is complete.
NOTE: If the screen in Figure 4 does not display (indicating that reprogramming did not complete),
refer to ECM Recovery on the next page.

9. Select Next.

Step
9

Figure 4

NOTE: Additional steps on page 8 are required before C-III plus will provide the final reprogramming
confirmation report.

6/16

ITB17-008a

ECM Recovery
Do not disconnect the plus VI or shut down C-III plus if reprogramming does not complete.
If reprogramming does not complete and the “!?” icon displays as shown in
Figure 5:



Check battery voltage
(12.0 - 15.5 V).



Ignition is ON, engine OFF.



External Bluetooth® devices are
OFF.



All electrical loads are OFF.



Select retry and follow the on
screen instructions.



“Retry” may not go through on first
attempt and can be selected more
than once.
Figure 5

If reprogramming does not complete and the “X” icon displays as shown in
Figure 6:



Check battery voltage
(12.0 - 15.5 V).



CONSULT A/C adapter is plugged
in.



Ignition is ON, engine OFF.



Transmission is in Park.



All C-III plus / VI cables are securely
connected.



All C-III plus updates are installed.



Select Home, and restart the
reprogram procedure from the
beginning.
Figure 6

7/16

ITB17-008a

10. Follow the on-screen instructions to perform the following:


Throttle Valve Closed Position



Idle Air Volume Learn (IAVL)
NOTE:
o Listed below are the conditions required for IAVL to complete.
o If IAVL does not complete within a few minutes, a condition may be out of range.
 Engine coolant temperature: 70 -105° C (158 - 221°F)