Classification:

HA18-004a

Reference:

Date:

NTB18-040a

July 17, 2018

2017-2018 TITAN; AIR CONDITIONING BLOWS HOT AIR
AFTER EXTENDED IDLING OVER 100°F
This bulletin has been amended to change the Classification number.
No other changes have been made. Please discard previous versions of this bulletin.

APPLIED VEHICLES:

2017-2018 Titan (A61)

APPLIED ENGINE:

VK56VD (gasoline engine)
NOTE: Does not apply to Titan XD

IF YOU CONFIRM
Hot air starts to blow from the dash vents while the Air Conditioning is ON, under the
following conditions:


After the engine has idled for an extended period with the vehicle in Drive (D-range),
and



Ambient temperature outside the vehicle is 100°F (37.8°C) or more.

ACTION
1. Refer to step 6 in the SERVICE PROCEDURE to confirm this bulletin applies to the
vehicle you are working on.
2. If this bulletin applies, reprogram the ECM.

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 CONSULT-III plus (C-III plus) software updates (if any) have been installed.
The CONSULT PC is connected to the Internet (Wi-Fi or cable).

NOTE:


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.



Take the vehicle for a 10 minute drive in order to meet the following Idle Air Volume
Learn (IAVL) conditions:

 Engine coolant temperature: 70 - 105°C
(158 - 221°F)
 Battery voltage: More than 12.9V (at idle)
 Transmission: Warmed up
Figure B
NOTE: After reprogramming is complete, you will be required to perform Throttle
Valve Closed Position, Idle Air Volume Learn, Accelerator Closed Position, and DTC
erase. The above conditions are required for IAVL to complete.
CAUTION:


Connect the GR8 to the 12V battery and set to ECM power supply mode.
If the vehicle battery voltage drops 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.

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NTB18-040a

1. Connect the CONSULT PC to the vehicle to begin the reprogramming procedure.

2. Open / start C-III plus.

3. Wait for the plus VI to be 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

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5. Follow the on-screen instructions and navigate C-III plus to the screen shown in
Figure 2.
6. When you get to the screen shown in Figure 2, confirm this bulletin 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).

xxxxxxxxxxxx

Step 6A:
Current ECM P/N

xxxxx
xxxxxxxxxxxxxxx
xxxxxxxxxxxxxxx
xxxxxxxxxxxxxxx

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

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



If there is not a match, close C-III plus and refer to ASIST for further diagnostic
information.

Table A
MODEL

Titan
(Non-XD)

YEAR

2017

2018

CURRENT ECM PART NUMBER: 23710EZ01A, EZ02A, EZ03A, EZ04A, EZ10A, EZ11A, EZ13A, EZ14A,
EZ26A, EZ27A, EZ28A, EZ29A
EZ01B, EZ02B, EZ03B, EZ04B, EZ10B, EZ11B, EZ13B, EZ14B,
EZ26B, EZ27B, EZ28B, EZ29B
EZ01C, EZ02C, EZ03C, EZ04C, EZ10C, EZ11C, EZ13C, EZ14C,
EZ26C, EZ27C, EZ28C, EZ29C
EZ10D, EZ11D, EZ13D, EZ14D
EZ10E, EZ11E, EZ13E, EZ14E
9FT1B, 9FT2B, 9FT3B, 9FT4B

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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 NTBXX-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.

Figure 3


Before reprogramming will start, you will be required to enter your User Name and
Password.
 The CONSULT PC must be connected to the Internet (Wi-Fi or cable).
 If you do not know your User Name and Password, contact your Service
Manager.

Figure 4
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8. When the screen in Figure 5 displays, reprogramming is complete.
NOTE: If the screen in Figure 5 does not display (indicating that reprogramming did not
complete), refer to ECM recovery on the next page.
9. Disconnect the GR8 (battery charger) from the vehicle.

10. Select Next.

Step
10

Figure 5
NOTE:


In the next steps (page 8), you will perform Throttle Valve Closed Position, Idle Air
Volume Learn, Accelerator Closed Position, and DTC erase.



These operations are required before C-III plus will provide the final reprogramming
confirmation report.

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ECM Recovery
Do not disconnect plus VI or shut down Consult III plus if reprogramming does not
complete.
If reprogramming does not complete and the “!?” icon displays as shown in
Figure 6:



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 6

If reprogramming does not complete and the “X” icon displays as shown in
Figure 7:



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 7

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

Throttle Valve Closed Position



Idle Air Volume Learn (IAVL)
NOTE:
 Listed below are common conditions required for IAVL to complete.
 If IAVL does not complete within a few minutes, a condition may be out
of range.
 Refer to the appropriate Electronic Service Manual (ESM) for specific
conditions required for the vehicle you are working on.
o Engine coolant temperature: 70 -105° C (158 - 221°F)
o Battery voltage: More than 12.9V (At idle)
o Selector lever: P or N
o Electric load switch: OFF (Air conditioner, headlamp, rear window
defogger)
o Steering wheel: Neutral (Straight-ahead position)
o Vehicle speed: Stopped
o Transmission: Warmed up



Accelerator Pedal Close Position Learning



Erase DTCs

Continue to the next page.

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12. When the entire reprogramming process is complete, the screen in Figure 8 will display.
13. Verify the before and after part numbers are different.
14. Print a copy of this screen (Figure 8) and attach it to the repair order for warranty
documentation.
15. Select Confirm.

xxxxxx

Step
13

xxxxxx
xxxxxxx
xxxxxxxxxxxxxxxxxx

Step
14
xxxxxxxxxxxxxxxxxx
Step
15

Figure 8
16. Close C-III plus.
17. Turn the ignition OFF.
18. Disconnect the plus VI from the vehicle.
19. Test drive the vehicle and make sure it operates correctly and the MIL is OFF.


If the MIL comes ON, go back to ASIST for further diagnostic information.



Diagnosis and repairs beyond ECM reprogramming are not covered by this bulletin.

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

PFP
(1)

OP CODE
DE97AA

SYM
ZE

DIA
32

FRT
(2) (3)

(1) Refer to the electronic parts catalog (FAST or equivalent) and use the Blank ECM
assembly part number (23703-*****) as the Primary Failed Part (PFP).
(2) Reference the current Nissan Warranty Flat Rate Manual and use the indicated FRT.
(3) FRT allows adequate time to access DTC codes and reprogram ECM. No other
diagnostic procedures subsequently required. Do NOT claim any Diagnostic Op Codes
with this claim.

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