Classification:

Reference:

EM22-002B

Date:

ITB22-025B

November 2, 2023

ROARING NOISE FROM THE ENGINE COOLING FAN
ASSEMBLY AND THE A/C IS NOT COOLING
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.

APPLIED VEHICLES:
APPLIED DATES:

2019-2022 QX50 (J55)
2022 QX55 (FJ55)
2019-2021 QX50 – All
2022 QX50 – Built on or before February 15, 2022
2022 QX55 – Built on or before February 15, 2022

IF YOU CONFIRM
A roaring noise from the engine cooling fan assembly (engine fan on high not cycling) is
present, and the air conditioning (A/C) is not cooling.

ACTION
1.

Check the Denso part number on the engine cooling fan assembly.

2.

Replace the engine cooling fan assembly and IPDM E/R, if applicable.
HINT: The IPDM E/R will need to be configured if replaced.

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.

1/11

SERVICE PROCEDURE
1.

Inspect the Denso part number on the label of the engine cooling fan assembly that is
currently in the vehicle (Figure 1).



2.

If the current Denso part number is in Table A, this bulletin does not apply. Refer
to the ESM for further diagnostic information.
If the current Denso part number is not in Table A, proceed to step 2.

After ordering the new engine cooling fan assembly, confirm that the Denso part
number on the new part is in Table A before installing (Figure 1).



If the new Denso part number is in Table A, proceed to step 3 on page 3.
If the new Denso part number is not in Table A, reorder another new engine
cooling fan assembly and confirm that the Denso part number is in Table A before
proceeding to step 3 on page 3.

Table A
New Denso Part Numbers
AA222750-0753
AA222750-0763
AA222750-0773

Engine cooling fan
assembly

Figure 1
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ITB22-025B

3.

Replace the engine cooling fan assembly.


4.

Refer to the ESM: ENGINE > ENGINE COOLING SYSTEM > KR20DDET >
REMOVAL AND INSTALLATION > COOLING FAN

Replace the IPDM E/R with one listed in the PARTS INFORMATION.


Refer to the ESM: ELECTRICAL & POWER CONTROL > POWER CONTROL
SYSTEM > IPDM E/R > REMOVAL AND INSTALLATION > IPDM E/R
(INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R Configuration
IMPORTANT: Before starting, make sure:


ASIST on the CONSULT PC has been synchronized (updated) to the current
date.



All CONSULT-III software updates (if any) have been installed.

5.

Confirm that the CONSULT PC is connected to Wi-Fi.

6.

Connect the Vehicle Interface (VI) to the vehicle.

7.

Turn the ignition ON with the engine OFF.

8.

Start CONSULT-III on the CONSULT PC.
 The serial number will display when the VI is recognized (Figure 2 on page 4).

9.

If prompted, select USA/CANADA Dealers from the drop down menu, and then
select OK.

10.

Log in using your NNAnet credentials.
IMPORTANT: If not prompted to enter your username and password, the CONSULT
PC may not be connected to Wi-Fi. Close C-III plus, confirm the CONSULT PC is
connected to Wi-Fi, and then reopen C-III plus.

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ITB22-025B

11.

Select Re/programming, Configuration.

The VI is
recognized

Figure 2

12.

Use the arrows (if needed) to view and read all precautions.

13.

Check the box confirming the precautions have been read, and then select Next.

Figure 3

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ITB22-025B

14.

Select Automatic Selection(VIN).

Figure 4

15.

Allow the CONSULT to perform automatic VIN selection.

Figure 5

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ITB22-025B

16.

Confirm the VIN or Chassis # is correct, and then select Confirm.

XXXXXXXXXXXXXXXXX
QX55
2022

Figure 6

17.

Allow the System call to complete.

Figure 7

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ITB22-025B

18.

Confirm the VIN is correct for the vehicle, and then select Confirm.

XXXXXXXXXXXXXXXXX

Figure 8

19.

Select IPDM E/R.

Figure 9

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ITB22-025B

20.

Select After ECU Replacement under VEHICLE CONFIGURATION.

Figure 10

21.

Select Manual selection.

Figure 11

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ITB22-025B

22.

Select the applicable Type ID, and then select Next.


QX55 – "284M1-5VG1A"



QX50 – "284M1-9CM2A"

IPDM E/R

XXXXX-XXXXX
XXXXX-XXXXX
XXXXX-XXXXX
XXXXX-XXXXX
284M1-XXXXX

Figure 12

23.

Verify the ignition is ON and the engine is OFF, and then select OK to write the
configuration.

IPDM E/R

XXXXX-XXXXX

Figure 13
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ITB22-025B

24.

Allow the Write Configuration to complete.

Figure 14

25.

Confirm that the Type ID is now “284M1-9CM2A”.

26.

Select End.

IPDM E/R

284M1-9CM2A

Figure 15

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ITB22-025B

PARTS INFORMATION

(1)

DESCRIPTION
Motor & Fan Assy – w/Shroud
(Engine cooling fan assembly)

PART NUMBER

IPDM E/R

284B7-5NA0E

(1)

QUANTITY
1
As needed
1
As needed

Refer to the EPC and look up the part number by VIN.

CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION

PFP

Replace the Engine Cooling Fan Assembly
Replace and Configure the IPDM E/R
(1)
(2)

(1)

OP CODE
CC20AA
RD21AA

SYM

DIA

FRT

ZL

32

(2)

Reference the EPC and use the Motor & Fan Assy w/Shroud (21481-*****) as the
Primary Failed Part (PFP).
Reference the current Infiniti Warranty Flat Rate Manual and use the indicated Flat
Rate Time (FRT).

AMENDMENT HISTORY
PUBLISHED DATE

REFERENCE

June 10, 2022

ITB22-025

Original bulletin published

September 15, 2022

ITB22-025A

Configuration steps added

ITB22-025B

APPLIED VEHICLES and APPLIED DATES
revised, login steps moved to page 3, and
“NOTE” references changed to “HINT”

November 2, 2023

DESCRIPTION

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ITB22-025B