NTB18-045b

Classification:
Reference:
EL18-018b
Date:
NTB18-045b
September 28, 2018
2011-2015 LEAF; 12 VOLT BATTERY LOSES CHARGE
AND/OR TELEMATICS SERVICES DO NOT WORK
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.
APPLIED VEHICLES: 2011-2015 LEAF (ZE0)
Vehicles equipped with a 3G Telematics control unit
APPLIED SYSTEM:
IF YOU CONFIRM
The 12 volt battery continuously loses its charge,
and/or
Remote Telematics services do not work.
NOTE: DTCs P3131 (SYSTEM SHUTOFF ERROR) and/or P31C2 (TCU) may be found
stored.
ACTION
1. Refer to step 2 on page 2 of the SERVICE PROCEDURE to confirm this bulletin applies
to the vehicle being worked on.
2. If this bulletin applies, reprogram the Telematics control unit (TCU).
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
This SERVICE PROCEDURE contains two (2) sections:
Section 1 – Check the TCU Part Number (this page)
Section 2 – TCU Reprogramming (includes turning the TCU OFF and ON) (next
page)
Check the TCU Part Number
1. With CONSULT-III plus (C-III plus), go to Diagnosis (One System) > System
Selection > TELEMATICS > ECU identification.
2. When you get to the screen shown in Figure 1, confirm this bulletin applies as follows.
A. Find the TCU Part Number and write it on the repair order.
NOTE: This is the current TCU Part Number (P/N).
Step
1
2A:
Current
TCU P/N
xxxx
xxxxxxxxx
xxxxxxxxxxxxxxx
Figure 1
B. Compare the P/N you wrote down to the numbers in the Current TCU Part Number
column in Table A below.

If there is a match, this bulletin applies. Go to TCU Reprogramming (includes
turning the TCU OFF and ON) on the next page.

If there is not a match, this bulletin does not apply. Refer to ASIST for further
diagnostic and repair information.
Table A
MODEL
CURRENT TCU PART NUMBER: 283B0-
LEAF
3NA1A, 3NA2A, 3NF2A
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TCU Reprogramming (includes turning the TCU OFF and ON)
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.

The CONSULT PC is connected to the Internet (Wi-Fi or cable).
Turn OFF the TCU
1. Connect the plus VI to the vehicle.

Make sure to use the correct VI for C-III plus (plus VI).
CAUTION: Make sure the plus VI is securely connected. If the plus VI connection is
loose during reprogramming, the process may be interrupted and the TCU may be
damaged.
2. Connect the AC Adapter to the CONSULT PC.
CAUTION: Be sure to connect the AC Adapter. If the CONSULT PC battery voltage
drops during reprogramming, the process may be interrupted and the TCU may be
damaged.
3. Turn OFF all external Bluetooth® devices (e.g., cell phones, printers, etc.) within range
of the CONSULT PC and the plus VI.
CAUTION: Make sure to turn OFF all external Bluetooth® devices. If Bluetooth®
signal waves are within range of the CONSULT PC and the plus VI during
reprogramming, reprogramming may be interrupted and the TCU may be damaged.
4. Put the vehicle in “Ready” mode.

The high voltage system will maintain the 12 volt battery.
CAUTION : Make sure the battery voltage stays between 12.0 and 15.5 volts during
reprogramming. If the battery voltage goes out of this range during reprogramming,
the TCU may be damaged.
5. Turn OFF all vehicle electrical loads such as exterior lights, interior lights, HVAC,
blower, rear defogger, audio, NAVI, seat heater, steering wheel heater, etc.
IMPORTANT: Make sure to turn OFF all vehicle electrical loads. Make sure the
battery voltage stays between 12.0 and 15.5 volts during reprogramming. If the
battery voltage goes out of this range during reprogramming, the TCU may be
damaged.
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6. Turn ON the CONSULT PC.
7. Select (open) C-III plus.
8. Wait for the plus VI to be recognized.

The serial number (Serial No.) will display when the plus VI is recognized.
Step 8: plus VI
is recognized
Figure 2
9. Select Diagnosis (One System).
Step
9
Figure 3
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10. Select Telematics.
Step
10
Figure 4
11. Select Work Support.
Step
11
Figure 5
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12. Select (highlight) TCU ACTIVATE SETTING.
Step
12
Figure 6
13. Select Start.
Step
13
Figure 7
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14. Select OFF.
15. Select END, and then wait 40 seconds.
Step
14
Step
15
Figure 8
16. Select Home, and then go to the next page.
Step
16
Figure 9
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TCU Reprogramming
1. Select Re/programming, Configuration.
Step
1
Figure 10
2. Use the arrows (if needed) to view and read all precautions, check the Confirmed
instructions box, and then select Next.
Step
2
Step
2
Step
2
Figure 11
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3. Select Automatic Selection(VIN).

If the screen in Figure 12 does not display, skip to step 4.
Step
3
Example
Figure 12
4. If the VIN or Chassis # matches the vehicle’s VIN, select Confirm.
xxxxxxxxxxxxxx
LEAF
xxxxxx
Step
4
Figure 13
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5. Select Confirm.
xxxxxxxxxxxxxxx
Step
5
Figure 14
6. Select TELEMATICS.
Step
6
Figure 15
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7. Select Reprogramming.
Step
7
Figure 16
8. Select Save.
xxxxxxxxxxxxxxx
283B0-xxxxxx
Step
8
ZE0 LEAF
xxxxxxxxxxxxxxx
xxxxxxxxxxxxxx
Figure 17
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9. Use the arrows (if needed) to view and read all precautions, check the Confirmed
Instructions box, and then select Next.
Step
9
Step
9
Step
9
Figure 18
10. Verify the Current Part Number and Part Number After Reprogramming are
different, and then select Next.
xxxxxxxxxx
283B0-xxxxxx
LEAF ZE0
xxxxxxxxxxxxxxx
xxxxxxxxxxx
Step
10
Figure 19
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11. Verify OK is highlighted green (battery voltage must be between 12.0 and 15.5 volts),
and then select Next.
IMPORTANT: Battery voltage must stay between 12.0 and 15.5 volts during
reprogramming. If not, reprogramming may be interrupted and the TCU may be
damaged.
Monitor battery
voltage here
Step
11
Step
11
Figure 20
12. Verify all items listed under Confirm Vehicle Condition are OK, and then select Start.
Monitor battery
voltage here
Verify these
items are OK
Step
12
Figure 21
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13. Select USA/CANADA Dealers.
14. Select OK.
Step
13
Step
14
Figure 22
NOTE:

The above screen may not display if the CONSULT PC has remained ON since
the last reprogramming.

If the CONSULT PC is not connected to the Internet, the screen in Figure 23 will
display.
Figure 23
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NOTE:

Before reprogramming will start, you will be required to enter your Username
and Password.

The CONSULT PC must be connected to the Internet (Wi-Fi or cable).

If you do not know your Username and Password, contact your service
manager.
15. Start the reprogramming process by selecting Submit.
Enter login
information…
…then
select
Submit
Figure 24
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16. The progress bar (Figure 25) should go to approximately 10%, and then the error
message in Figure 26 should appear. This is normal.
NOTE: If a different error message displays, go to Electronic Control Unit Recovery
on the next page.
Step
16
Figure 25
17. When the screen in Figure 26 displays, verify the following, and then select Retry.






Check battery voltage
(12.0–15.5 volts).
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 the first
attempt and can be
selected more than
once.
xxxxxxxxxxxxxxx
xxxxxxxxx
Step
17
xxxxxxxxxxxxxxx
xxxxxxxxxxxxxxx
xxxxxxxxxxxxxxx
Figure 26
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Electronic Control Unit 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 “X” icon displays as shown in
Figure 27:

Check battery voltage
(12.0 – 15.5 volts).

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.


xxxxxxxxx
283B0-xxxxxx
xxxxxxxxx
xxxxxxxxxxxxxx
All C-III plus updates are
installed.
TELEMATICS
xxxxxxxxxxxxx
Select Home, and restart
the reprogram procedure
from the beginning.
Figure 27
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18. Select Next.
Step
18
Figure 28
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19. Erase all DTCs as follows:
a. Turn the ignition OFF.
Step
19a
Figure 29
b. Turn the ignition ON.
c. Wait for DTC erase to complete, and then select Next.
Step
19b
Step
19c
Figure 30
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20. When the entire reprogramming process is complete, the screen in Figure 31 will
display.
21. Verify the before and after part numbers are different.
22. Print a copy of this screen (Figure 31) and attach it to the repair order for warranty
documentation.
23. Select Confirm.
283B0-xxxxxx
Step
21
283B0-xxxxxx
ZE0 LEAF
xxxxxxxxxxxxxxxxxx
Step
22
xxxxxxxxxxxxxxxx
Step
23
Figure 31
Go to the next page.
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Turn ON the TCU
1. Got back to the Home screen, and then follow steps 9-13 starting on page 4 to
get to Figure 32 below.
2. Select On.
3. Select End, and then wait 40 seconds.
Off
Step
2
On
Off
Step
3
Figure 32
4. Close C-III plus.
5. Turn the ignition OFF (turn OFF “Ready” mode).
6. Disconnect the plus VI from the vehicle.
CLAIMS INFORMATION
Submit a “CM” line claim using the following claims coding:
DESCRIPTION
PFP
OP CODE
FRT
Reprogram TCU
PC643
PC6430
0.3
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AMENDMENT HISTORY
PUBLISHED DATE
REFERENCE
DESCRIPTION
June 21, 2018
NTB18-045
Original bulletin published.
September 11, 2018
NTB18-045a
CLAIMS INFORMATION section revised.
September 28, 2018
NTB18-045b
CLAIMS INFORMATION section revised.
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