NTB18-046a

Classification:
HA18-002a
Reference:
Date:
NTB18-046a
July 17, 2018
2016-2018 TITAN XD DIESEL; 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: 2016-2018 Titan XD (A61)
APPLIED ENGINE:
Cummins (5.0L V8) Diesel
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. Save Computer Data with CONSULT-III plus (C-III plus).
2. At step 6 of the reprogramming procedure, confirm this bulletin applies to the vehicle
you are working on.
3. If this bulletin applies, continue with the reprogramming procedure.
4. Write Saved Data with CONSULT-III plus.
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).
Save Computer Data
1. Connect the CONSULT PC to the vehicle.
2. Open / start C-III plus.
3. Turn the ignition ON, with engine OFF (engine not running).
4. Wait for the plus VI to be recognized.

The Serial No. will display when the plus VI is recognized.
5. Select Diagnosis (One System).
Step
5
Step 4:
plus VI is
recognized
Figure 1
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6. Navigate C-III plus to ENGINE > Work Support (see Figure 2).
7. Select SAVE COMPUTER DATA.
8. Select Start.
Step
6
Step
7
Step
8
Figure 2
NOTE:

After selecting Start, a screen message may appear that says:
Latest diagnostic tool update must be used before saving the data,
otherwise there is a risk that the data entry will not work.

If the above message appears, select Continue.
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9. Make sure the ignition is ON and the engine is OFF (engine not running).
10. Select Confirm.
Step
10
Figure 3
11. Select End.
Step
11
Figure 4
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Reprogram ECM
NOTE:

Most instructions for reprogramming with 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.

For the Titan XD Diesel, the GR8 set to ECM power supply mode can be attached to
either 12 volt battery.
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 and the plus VI during reprogramming,
reprogramming may be interrupted and the ECM may be damaged.
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1. Return to the C-III- plus Home screen (see Figure 5).
2. Confirm the ignition is ON, with engine OFF.
3. Confirm the plus VI is 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 5
5. Follow the on-screen instructions and navigate C-III plus to the screen shown in
Figure 6 on the next page.
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6. When you get to the screen shown in Figure 6, 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).
6A: Current ECM P/N
Figure 6
B. Compare the P/N you wrote down to the numbers in the Current ECM Part Number
column in Table A below.

If there is a match, this bulletin applies. Continue with the reprogramming
procedure.

If there is not a match, this bulletin does not apply.
Table A
MODEL
CURRENT ECM PART NUMBER: 23710EZ41C, EZ41D, EZ41E
2016 Titan XD
with diesel engine
EZ42A, EZ42B, EZ42C, EZ42D, EZ42E
EZ43A, EZ43B
EZ45D
2017 Titan XD
with diesel engine
EZ44D, EZ44E
EZ45A, EZ45B, EZ45C, EZ45D
2018 Titan XD
with diesel engine
EZ47C, EZ47D, EZ47E
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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 7 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 7
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8. When the screen in Figure 8 displays, reprogramming is complete.
NOTE: If the screen in Figure 8 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 8
NOTE:

In the next step (page 11), you will perform DTC erase.

This operation is required before C-III plus will provide the final reprogramming
confirmation report.
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ECM Recovery
Do not disconnect the plus VI or shut down C-III plus if reprogramming does not
complete.
If reprogramming does not complete and the “!?” icon displays as shown in
Figure 9:

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 9
If reprogramming does not complete and the “X” icon displays as shown in
Figure 10:

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 10
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11. Follow the on-screen instructions to Erase DTCs.
12. When the entire reprogramming process is complete, the screen in Figure 11 will
display.
13. Verify the before and after part numbers are different.
14. Print a copy of this screen (Figure 11) 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 11
Continue to the next page.
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Write Saved Data
1. Return to the C-III plus Home screen (see Figure 12).
2. Confirm the ignition is ON, with engine OFF.
3. Confirm the plus VI is recognized.

The Serial No. will display when the plus VI is recognized.
4. Select Diagnosis (One System).
Step
4
Step 3:
plus VI is
recognized
Figure 12
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5. Navigate C-III plus to ENGINE > Work support (see Figure 13).
6. Select WRITE SAVED DATA.
7. Select Start.
Step
5
Step
6
Step
7
Figure 13
8. Make sure the ignition is ON and the engine is OFF (engine not running).
9. Select Confirm.
Step
9
Figure 14
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10. Wait for the procedure to complete.
Figure 15
11. Select End.
Step
11
Figure 16
12. Close C-III plus.
13. Turn the ignition OFF.
14. Disconnect the plus VI from the vehicle.
15. 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
PFP
OP CODE
SYM
DIA
FRT
Reprogram ECM
(1)
DE97AA
ZE
32
(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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