QUALITY ACTION
CAMPAIGN BULLETIN
ECM Reprogram - Long Crank
Reference: P4A43
Date: February 19, 2025
Attention: Retailer Principal, Sales, Parts and Service Managers
Affected
Models/Years:

Affected
Population:

Retailer
Inventory:

SERVICE COMM
Activation date:

NA

5,332

February 19, 2025

2025 QX80 (Z63)

Stop Sale
In Effect

NO

***** Retailer Announcement *****
To ensure continued client satisfaction and confidence, INFINITI is conducting a retailer inventory quality
action to reprogram the Engine Control Module (ECM) on certain specific 2025 INFINITI QX80 vehicles
identified in Service Comm and National Service History. Owners of affected vehicles may experience an
extended crank time when starting the engine. Please follow the attached instructions to remedy any
vehicles affected by this retailer inventory quality action.
***** What Retailers Should Do *****
PLEASE FOLLOW THE ATTACHED REPAIR INSTRUCTIONS:
1.

Verify if vehicles are affected by this quality action using Service Comm or DBS National
Service History – Open Campaign I.D. P4A43
• New vehicles in retailer inventory can also be identified by using DBS (Sales-> Vehicle
Inventory, and filter by Open Campaign).
 Refer to IPSB 15-286 for additional information
• Some vehicles may still be in transit. Please continue to check newly arriving inventory for
QA applicability.

2. Use the attached procedure to remedy any vehicles affected by this quality action prior to sale.
3. Once remedied, retailers should submit the applicable warranty claim for the action performed
so it can be closed in Service Comm and release the vehicle for sale.
***** Retailer Responsibility *****
It is the retailer’s responsibility to check Service Comm or DBS National Service History – Open
Campaign using the appropriate campaign I.D for the inspection status on each affected vehicle currently
in new vehicle inventory.

P4A43 | Original Document

P4A43 - 2025 QX80
ENGINE CONTROL MODULE(ECM)
REPROGRAMMING

Service Procedure
IMPORTANT:
 Be sure to perform an ASIST Sync and install ALL CONSULT updates before starting
the reprogramming procedure.


If the CONSULT PC goes to sleep, the reprogramming will be interrupted. Change
the PC sleep settings to prevent the PC from going to sleep during the reprogram.



If Wi-Fi connection is not sufficient or is unstable, data may not download correctly
during the reprogramming procedure.



Be sure the CONSULT PC battery is sufficiently charged, or a power adapter is
connected to the PC.

1. Open the vehicle hood.
 Pull the hood release shown in
Figure 1


Open the vehicle hood

Figure 1
2. Connect a battery charger/maintainer to the 12v battery and turn it on.

3. Apply the parking brake. (Figure 2)


Pull back on the parking brake
switch (red indicator on switch will
illuminate).

Parking Brake
Switch

Figure 2
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P4A43

4. Connect the VI3 to the vehicle data link
connector. (Figure 3)
 Connect the provided USB cable to
the VI3 and the CONSULT PC

VI3

Figure 3

5. Turn the ignition ON (Engine OFF).


Turn the ignition ON (Engine OFF) by
pressing the push-button ignition
switch without depressing the brake
pedal (Figure 4)

Push-Button
Ignition Switch

Figure 4
6. Verify the headlamps and HVAC are OFF.
7. Start the CONSULT 4 (C4) program by selecting the C4 icon on the desktop or
taskbar.
8. Enter login information and select
Submit. (Figure 5)


If prompted, select USA/CANADA
Dealers from the drop-down menu,
and then select OK
(Figure 6)
Figure 5

IMPORTANT:
 If not prompted to enter your
username and password, the
CONSULT PC may not be connected
to Wi-Fi.
 Close CONSULT-4, confirm the
CONSULT PC is connected to Wi-Fi,
and then reopen CONSULT-4.

Figure 6
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xxxxxx

9. Allow C4 to connect to VI3 and
perform vehicle system call.
(Figure
7 and Figure 8)

Change VI

Figure 7

NOTE:
VI3 may not automatically connect the
first-time logging in. If the VI does not
automatically connect, select Change
VI on the RH side of the screen.
(Figure 8)

xxxxx

xxxxxxxxxxx

Figure 8

10. Locate and select ENGINE.
9)

(Figure

Figure 9

11. Locate and select ECU
reprogramming. (Figure 10)
 If error code R801 (Figure 11)
occurs perform Step 12 on Page 4.

Figure 10

 If the error code R801 does NOT
occur, continue to Step 14 on Page
4.

Figure 11
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P4A43

12. Error code R801 indicates no
reprogramming is available, select Yes
(Figure 12), and then select ECU
identification (Figure 13) in ENGINE.

Figure 12

Figure 13
13. Compare the part number shown in ECU identification with the part numbers listed
in Table A Below.
Table A
Model
QX80

Before Part number: 23761-XXXXX
7JD0B, 7JD1B, 7JD2B, 7JD3B, 7JD4B, 7JD5B, 7JD6B, 7JD7B



If the part number matches one of the numbers in Table A, reprogramming is
required. Perform a manual ASIST sync and install ALL updates.



If the part number does NOT match Table A, reprogramming is not needed, close
CONSULT-4 and disconnect VI3.

xxxxxxxxxxxxxxxxx

14. Verify the VIN is correct and select
Next to download the software.
(Figure 14)

Figure 14

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15. Once software download has
completed, select Next (Figure 15).

Figure 15

16. Verify all preconditions show a check
mark in the far right column and select
Next. (Figure 16)

Figure 16

17. Allow the reprogramming process to
complete and select Next. (Figure 17)
NOTE:
This process will take 15-30 minutes.
Figure 17

18. Verify “Current” (new) part number is
different than the “Previous” part
number. (Figure 18)


Select Complete
Figure 18

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19. Locate and Select BCM. (Figure 19)
NOTE:
This will help prevent CONSULT-4 from
disconnecting from the vehicle when
the ignition is turned off.
Figure 19
20. Press the ignition button one (1) time to turn the Vehicle OFF.


If closed, open the drivers door to exit retained power mode



Wait until the HVAC display turns off



Turn the ignition ON (Engine OFF) by pressing the push-button ignition
switch without depressing the brake pedal

21. Select All self-diagnosis result.
(Figure 20)

Figure 20
DTC Erase

22. Select the erase DTC icon, and select
Yes to erase DTC’s. (Figure 21)

Figure 21

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P4A43

xxxxxx

xxxxxxxxxxxxxx

23. Verify all DTCs have erased, select
Home. (Figure 22)

Figure 22
Additional Services When Reprogramming ECM

24. Locate and select ENGINE.
(Figure 23)

Figure 23

25. Select Work support. (Figure 24)

Figure 24

26. Locate and select the “Play” button
for Close throttle position learning.
(Figure 25)

Figure 25
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27. Select Start and wait until the
“Completed” is displayed. (Figure 26)


Turn the ignition OFF by pressing
the push button ignition switch (1)
one time



Wait 10 seconds



Turn the ignition ON (Engine OFF)
by pressing the push-button
ignition

switch without depressing the brake
pedal


Figure 26

Select End

28. Locate and select the “Play” button
for Idle Air Volume Learning.
(Figure 27)

Figure 27

29. Select Next. (Figure 28)

Figure 28
30. Depress the brake pedal and press the push button ignition switch one-time to start
the engine.

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31. Allow the engine to idle while
monitoring “Coolant temperature/
system”. (Figure 29)


Once the coolant temperature
reaches 70°C, Select Start



Once Current status changes to
“Completed”, select END

Figure 29

32. Verify the engine idles normally and no warning lamps are illuminated.

33. Select All self-diagnosis result.
(Figure 30)

Figure 30
DTC Erase

34. Select the erase DTC icon and select
Yes to erase DTC’s. (Figure 31)

Figure 31
xxxxxx

xxxxxxxxxxxxxx

35. Verify all DTCs have erased.
 Close C4 by selecting the “X” in the
upper RH corner (Figure 32)

Figure 32

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36. Turn the vehicle off by depressing the push button ignition switch (1) one-time.


Disconnect VI3 from the vehicle

37. Disconnect the battery charger/maintainer from the 12v battery.
38. Close the hood.

Claims Information:
Submit claim using the following claims coding:
Work Order Line Type: “CM” Campaign

Campaign (“CM”) ID

Description

Op code

FRT

Reprogram ECM

P4A430

0.8hr

Reprogram Not Needed

P4A431

0.3hr

P4A43

10/10

P4A43