ITB18-011

Classification:
Reference:
Date:
EL18-007
ITB18-011
March 9, 2018
INFINITI; MICROPHONE DOES NOT WORK
APPLIED VEHICLES: 2018 QX60 (L50)
2018 QX80 (Z62)
IF YOU CONFIRM
The microphone of an applied vehicle does not work.

The person receiving your call through Bluetooth® cannot hear you.
And
Voice Recognition does not respond to any commands.
NOTE: DTCs U1A01 and/or U1A02 may be found stored.
ACTION
1. Confirm TCU reprogramming will resolve the issue.

Refer to “Issue Confirmation” on page 2.
2. If confirmed, reprogram the 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.
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
1. Disconnect the negative battery cable, wait at least 30 seconds, and then reconnect the negative battery
cable.

Wait at least two (2) minutes before going to step 2.
2. Reset/reinitialize systems, as needed, now.

Refer to the appropriate section of the Electronic Service Manual (ESM) for a listing of systems that
require reset/initialization after reconnecting the 12 V battery.
 QX60: ELECTRICAL & POWER CONTROL > POWER SUPPLY, GROUND & CIRCUIT
ELEMENTS > BASIC INSPECTION > INSPECTION AND ADJUSTMENT > ADDITIONAL
SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL
 QX80: GENERAL INFORMATION > GENERAL INFORMATION > BASIC INSPECTION >
INSPECTION AND ADJUSTMENTS > ADDITIONAL SERVICE WHEN REMOVING BATTERY
NEGATIVE TERMINAL

This list often includes items such as the audio system, power windows, auto-air conditioning,
moonroof, etc.
3. Use the microphone:

If the microphone works (the person receiving your call can hear you, or Voice Recognition responds to
your commands), reprogram the TCU.
 Go to “Reprogram TCU” below.

If the microphone does not work, stop here. Go to ASIST for further diagnosis.
Reprogram TCU
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).
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1. Connect the plus VI to the vehicle.
CAUTION: Make sure the plus VI is securly connected. If the plus VI connection is loose during
reprogramming, the process will 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 will be interrupted and the TCU may be damaged.
3. Connect the GR-8 to the vehicle battery:

Set the GR-8 to “Power Supply” mode.
CAUTION : DO NOT use a standard battery charger for Hybrid vehicles. Make sure to connect the
GR-8 securely to the 12V battery. Make sure the battery voltage stays between 12.0V and 15.5V
during reprogramming. If the battery voltage goes out of this range during reprogramming, the TCU
may be damaged.
4. 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.
5.
6.
7.
8.
Turn the ignition ON with the engine OFF.
Turn the hazard lights ON.
Start C-III plus.
Wait for the plus VI to be recognized.

The serial number will display when the plus VI is recognized.
9. Select Re/programming, Configuration.
Step 8: plus VI
is recognized
Step
9
Figure 1
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10. Use the arrows (if needed) to view and read all precautions, check the Confirmed Instructions box, and
then select Next.
Step
10
Step
10
Step
10
Figure 2
11. Select Automatic Selection(VIN).

If the screen in Figure 4 does not display, skip to step 12.
Step
11
Example
Figure 3
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12. If the VIN or Chassis # matches the vehicle’s VIN, select Confirm.
xxxxxx
xxxxxx
Step
12
Figure 4
13. Select Confirm.
xxxxxx
Step
13
Figure 5
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14. Select TELEMATICS.
Step
14
Figure 6
15. Select Reprogramming.
Step
15
Figure 7
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16. When you get to the screen shown in Figure 8, 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).
xxxxxx
16A: Current
TCU P/N
xxxxxx
Step
16B
xxxxxx
xxxxxxxxxxxxxx
Figure 8
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, select Save, and then continue with the reprogramming procedure on page 7.

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:
All Models
28275-6FL0A
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17. Use the arrows (if needed) to view and read all precautions, check the Confirmed Instructions box, and
then select Next.
Step
17
Step
17
Step
17
Figure 9
18. Verify the Current Part Number and Part Number After Reprogramming are different, and then select
Next.
xxxxxx
xxxxxx
xxxxxx
xxxxxxxxxxx
Step
18
Figure 10
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19. 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
19
Step
19
Figure 11
20. Verify all items listed under Confirm Vehicle Condition are OK, and then select Start.
Monitor battery
voltage here
Verify these
items are OK
Step
20
Figure 12
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21. Select USA/CANADA Dealers.
22. Select OK.
Step
21
Step
22
Figure 13
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 14 will display.
Figure 14
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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.
23. Start the reprogramming process by selecting Submit.
Enter login
information…
…then
select
Submit
Figure 15
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24. Wait for both progress bars to complete.
Step
24
Figure 16
25. When the screen in Figure 17 displays, TCU reprogramming is complete.
NOTE: If the screen in Figure 17 does not display (indicating that reprogramming did not complete), refer to
the information on the next page.
26. Disconnect the battery charger from the vehicle battery.
27. Select Next.
Step
27
Figure 17
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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 18:

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 18
If reprogramming does not complete and the “X” icon displays as shown in Figure 19:

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 19
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28. Erase all DTCs as follows:
a. Turn the ignition OFF.
Figure 20
b. Turn the ignition ON.
c. Wait for DTC erase to complete, and then select Next.
Step
28c
Figure 21
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29. When the entire reprogramming process is complete, the screen in Figure 22 will display.
30. Verify the before and after part numbers are different.
31. Print a copy of this screen (Figure 22) and attach it to the repair order for warranty documentation.
32. Select Confirm.
xxxxxx
Step
30
xxxxxx
xxxxxx
Step
31
xxxxxxxxxxxxxxxxxx
Step
32
Figure 22
33. Close C-III plus.
34. Turn the ignition OFF.
35. Disconnect the plus VI from the vehicle.
36. Disconnect the GR-8 from the battery.
CLAIMS INFORMATION
Submit a Primary Part (PP) type claim using the following claims coding:
DESCRIPTION
PFP
OP CODE
SYM
DIA
FRT
Inspect Microphone Operation –
RX6BAA
0.6
Reprogram TCU
(1)
ZE
32
Inspect Microphone Operation –
RX6CAA
0.3
No TCU Reprogram
(1) Reference FAST and use the Telematic Box (28275-*****) part number as the PFP.
(2) The FRT allows adequate time to access DTC Codes. No other diagnostic procedures subsequently
required. Do Not claim any other diagnostic operation codes with this claim.
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ITB18-011