NTB21-072

Classification:
Reference:
HA21-004
Date:
NTB21-072
August 6, 2021
AC INOPERATIVE WITH DTC B20C8-14 STORED
IN THE IPDM E/R
APPLIED VEHICLES:
2022 Pathfinder (R53)
2021 Rogue (T33) with PR25DD engine only
IF YOU CONFIRM
The AC compressor is not engaging when the AC is in the ON position, as indicated by the
yellow illumination on the AC button,
AND
DTC B20C8-14 ECV (ELECTRICAL CONTROL VALVE) is stored in the IPDM E/R.
ACTION
Update the IPDM E/R to the latest software version.
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.
Nissan 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 Nissan dealer 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 (see Figure 1).
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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 the correct Vehicle Name and Model Year.
8.
Select Select.
Example
Figure 3
9.
Verify the correct VIN is populated.
10.
Select Confirm.
XXXXXXXXXXXXXXX
XXXXXXXX
XXXXXXXX
Figure 4
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11.
Select Confirm.
XXXXXXXXXXXXXXXXXX
Figure 5
12.
Select IPDM E/R.
Figure 6
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13.
Select Reprogramming.
Figure 7
14.
Find the IPDM E/R Part Number and write it on the repair order, and then select
Save.
NOTE: This is the current Part Number (P/N).
xxxxxxxxxx
xxxxxxxxxx
xxxxxxx
XXXXXXXXXXXX
Figure 8
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15.
Use the arrows (if needed) to view and read all of the precautions.
Figure 9
16.
Check the box to confirm the precaution instructions have been read, and then select
Next.
Figure 10
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17.
Review the data on the screen, and then select Next.
xxxxxxx
xxxxxxx
xxxxxxx
xxxxxxxxxxxxxxxxx
Figure 11
18.
Follow the on-screen instructions, and then select Next.
Figure 12
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19.

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 13
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20.
Select your user group from the drop down menu, and then select OK.
Figure 14
21.
Enter your Username and Password, and then select Submit.
Figure 15
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22.
Allow Transfer Data to complete.

The update will take approximately 15 minutes to complete.
XXXmin
Figure 16
23.
Once the update completes, select Next.
Figure 17
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24.
Erase all DTCs.

Turn the ignition ON.
Figure 18
25.
Allow Erase All DTCs to complete.
Figure 19
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26.
Follow the on-screen instructions, and then select Confirm.
XXXXXXXXXX
XXXXXXXXXX
xxxxxxxxxx
XXXXXXXXXXXXXXXX
IPDM E/R
XXXXXXXXXXXXXXXX
Figure 20
27.
Select Home.
Figure 21
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28.
Clear the DTC, and follow the DTC CONFIRMATION PROCEDURE in the ESM.

If DTC B20C8-14 is past, AC compressor operation will be inhibited until the DTC
is cleared.

If DTC B20C8-14 returns after being cleared (either Current or Past status), follow
the ESM diagnosis procedure.
 For models with Automatic Air Conditioning, refer to the ESM: VENTILATION,
HEATER & AIR CONDITIONER > HEATER & AIR CONDITIONING
CONTROL SYSTEM > AUTOMATIC AIR CONDITIONING > DTC/CIRCUIT
DIAGNOSIS > B20C8-14 ECV (ELECTRICAL CONTROL VALVE)
 For models with Manual Air Conditioning, refer to the ESM: VENTILATION,
HEATER & AIR CONDITIONER > HEATER & AIR CONDITIONING
CONTROL SYSTEM > MANUAL AIR CONDITIONING > DTC/CIRCUIT
DIAGNOSIS > B20C8-14 ECV (ELECTRICAL CONTROL VALVE)
CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
(1)
DESCRIPTION
PFP
OP CODE
SYM
DIA
FRT
Perform IPDM E/R Software Update
(1)
RX9NAA
ZE
32
0.6
Reference the electronic parts catalog and use the IPDM Control Unit (284B7-*****)
as the Primary Failed Part (PFP).
AMENDMENT HISTORY
PUBLISHED DATE REFERENCE
August 6, 2021
NTB21-072
DESCRIPTION
Original bulletin published
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