ITB22-004

Classification:
Reference:
Date:
HA21-007
ITB22-004
February 7, 2022
A/C INOPERATIVE WITH DTC B20C8-14 STORED IN THE IPDM E/R
APPLIED VEHICLES:
2022 QX60 (L51)
IF YOU CONFIRM
The A/C compressor is not engaging when the A/C is in the ON position, as indicated by the yellow
illumination on the A/C button,
AND
DTC B20C8-14 (COMPRESSOR [ECV]) is stored in the IPDM E/R.
ACTION
Follow the SERVICE PROCEDURE to reprogram the IPDM E/R.
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.
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SERVICE PROCEDURE
IMPORTANT: Before starting, make sure:

ASIST on the CONSULT PC has been synchronized (updated) to the current date.

All C-III plus software updates (if any) have been installed.

Connect a battery maintainer or smart charger set to reflash mode or a similar setting. If the vehicle
battery voltage drops below 12.0V or rises above 15.5V during reprogramming, the IPDM E/R may
be damaged.

Be sure to turn OFF all vehicle electrical loads.

If a vehicle electrical load remains ON, the IPDM E/R 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 IPDM E/R may be damaged.

Turn OFF all external Bluetooth® devices (e.g., cell phones, printers, etc.) within range of the
CONSULT PC and the VI. If Bluetooth® signal waves are within range of the CONSULT PC or VI
during reprogramming, reprogramming may be interrupted and the IPDM E/R may be damaged.
1.
Turn ON the ignition.
2.
Connect the VI to the vehicle.
3.
Start C-III plus.
4.
Wait for the VI to be recognized.

The serial number will display when the VI is recognized (Figure 1 on page 3).
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5.
Select Re/programming, Configuration.
The VI is
recognized
Figure 1
6.
Check the box to confirm the precaution instructions have been read, and then select Next.
NOTE: Use the arrows (if needed) to view and read all of the precautions.
Figure 2
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7.
Select Automatic Selection(VIN).
EXAMPLE
Figure 3
8.
Confirm the VIN or Chassis # is correct, and then select Confirm.
XXXXXXXXXXX
QX60
2022MY
Figure 4
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9.
Confirm the VIN is correct for the vehicle, and then select Confirm.
XXXXXXXXXXXXXXXXXX
Figure 5
10.
Select IPDM E/R.
Figure 6
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11.
Select Reprogramming.
Figure 7
12.
Find the IPDM E/R Part Number and write it on the repair order.
NOTE: This is the current Part Number (P/N).
13.
Select Save.
XXXXXXXXXXXX
IPDM E/R
XXXXXXX
QX60
XXXXXXXXXXXX
XXXXXXXXXXXX
Figure 8
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14.
Check the box to confirm the precaution instructions have been read, and then select Next.
NOTE: Use the arrows (if needed) to view and read all the precautions.
Figure 9
15.
Confirm the information on the screen is accurate, and then select Next.
XXXX
XXXX
QX60
XXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXX
Figure 10
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16.
Follow the on-screen instructions, and then select Next.
Figure 11
17.

To avoid damage to the IPDM E/R, ensure a battery maintainer or smart charger set to reflash mode
or a similar setting is connected, as the update will take approximately 15 minutes to complete.

To avoid damage to the IPDM E/R, ensure the AC Adapter is connected to the CONSULT PC.
Confirm the battery voltage is within acceptable limits, and then select Start.
Figure 12
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18.
Select USA/CANADA Dealers from the drop down menu, and then select OK.
Figure 13
19.
Enter your Username and Password, and then select Submit.
Figure 14
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20.
Allow Transfer Data to complete.

The update will take approximately 15 minutes to complete.
XXXmin
Figure 15
21.
Once the update completes, select Next.
Figure 16
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22.
Perform Erase All DTCs.

Follow the on-screen instructions as shown in Figure 17 and Figure 18.
Figure 17

Select Next.
Figure 18
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23.
Allow Erase All DTCs to complete.
Figure 19
24.
Follow the on-screen instructions, and then select Confirm.
XXXXXXXX
XXXXXXXX
QX60
XXXXXXXXXXXX
IPDM E/R
XXXXXXXXXXXX
Figure 20
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25.
Select Home.
Figure 21
26.
Clear the DTC.

If DTC B20C8-14 is past, A/C compressor operation will be inhibited until the DTC is cleared.

If DTC B20C8-14 returns after being cleared (either current or past status), perform the diagnosis
procedure in the ESM.
o Refer to the ESM: VENTILATION, HEATER & AIR CONDITIONER > HEATER & AIR
CONDITIONING CONTROL SYSTEM > AUTOMATIC AIR CONDITIONING > DTC/CIRCUIT
DIAGNOSIS > B20C8-14 COMPRESSOR (ECV) > Diagnosis Procedure
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CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP
OP CODE
SYM
DIA
FRT
Perform IPDM E/R Software Update
(1)
RX9NAA
ZE
32
0.6
(1) Reference the electronic parts catalog and use the IPDM Control Unit (284B7-*****) as the Primary Failed
Part (PFP).
AMENDMENT HISTORY
PUBLISHED DATE
REFERENCE
February 7, 2022
ITB22-004
DESCRIPTION
Original bulletin published
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