ITB19-002

Classification:
Reference:
Date:
EL18-040
ITB19-002
January 15, 2019
2018-2019 INFINITI VEHICLES;
DISPLAY CONTROL UNIT SERVICE INFORMATION
APPLIED VEHICLES: 2018-2019 Q50 (V37)
2018 Q50 Hybrid (V37)
2018-2019 Q60 (V37)
2018-2019 Q70 (Y51)
2018 Q70 Hybrid (Y51)
2018-2019 QX30 (H15)
2019 QX50 (J55)
2018-2019 QX60 (L50)
2018-2019 QX80 (Z62)
Q50, Q60 and QX50 vehicles
SERVICE INFORMATION
If the Display Control Unit (DCU) needs to be
replaced on an APPLIED VEHICLE for any reason,
follow the steps in the Service Procedure to:

Display
Control Unit
Confirm proper diagnosis and repair with
TECH LINE to obtain DCU order approval,
then place the order with DENSO.
NOTE: The DCU order approval process
does not apply to 2017 model year and
earlier models. TECH LINE authorization is
not needed for 2017 model year and earlier
models.
Figure 1

Configure the Multi AV system.

2018-2019 QX30 vehicles only: Register the replacement DCU. DCU registration is necessary whether or
not the vehicle has an active Infiniti InTouch Apps subscription.
NOTE: The original DCU must be installed in the vehicle while performing part of this procedure.
DO NOT remove the original DCU until instructed.
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
Before starting, make sure your ASIST has been synchronized to the current date and all CONSULT-III plus
(C-III plus) upgrades have been installed.
Parts of the Procedure
PART 1: Confirm Proper Diagnosis and Repair with TECH LINE to Obtain DCU Order Approval / Place
Order with DENSO
PART 2: Record Multi AV Configuration Values of Original DCU / Replace DCU
PART 3: Configure Multi AV System
PART 4: Manually Configure Multi AV System (if needed)
PART 5: 2018-2019 QX30 Vehicles Only – Register Replacement DCU
PART 1: Confirm Proper Diagnosis and Repair with TECH LINE to Obtain DCU Order Approval / Place Order
with DENSO
NOTE: The DCU order approval process is to be performed on all 2018-2019 APPLIED VEHICLES and does
not apply to all 2017 and earlier models. TECH LINE authorization is not needed for all 2017 and earlier models.
To improve customer satisfaction by providing the correct repair on the first visit, Infiniti has put in place a procedure
for ordering an “exchange” or “new” DCU.

To ensure a proper diagnosis and repair, the technician will need to contact TECH LINE to confirm (or assist
with) their diagnosis and the proper repair prior to ordering the DCU.

DENSO will require a confirmation from TECH LINE prior to shipping an exchange DCU.

Approval from TECH LINE does not mean the DCU has been ordered. The DCU must be ordered from
DENSO.

New DCUs will be put on parts restriction and will need to be cleared before the order is shipped. In the
event that a new DCU is required, the warranty claims call center will verify that TECH LINE has
recommended replacement.

This process applies to vehicles equipped with a Navigation system as well as non-Navigation vehicles.
TECH LINE has the support of engineering and DENSO in diagnosis, if needed.
Most DCUs ordered will be an exchange unit versus a new unit.
The requirement of contacting TECH LINE for confirmation to replace a DCU will be monitored to ensure the most
effective and accurate method of repair.
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In most cases, an exchange DCU will be ordered. A new DCU is required only if:

The vehicle has not yet been sold.

The customer requests a new DCU on a non-warranty repair.

The exchange DCU is not available.

Insurance claim replacement.
NOTE: While not required, Infiniti recommends using this procedure for non-warranty repairs to ensure that proper
diagnosis and repair is performed.
Contact TECH LINE to Confirm DCU Replacement is Needed
NOTE:

Steps 1-4, below, do not apply to 2017 model year and earlier Infiniti vehicles. Proceed to Order an
Exchange DCU from DENSO on page 4.

Contacting TECH LINE is done to confirm diagnosis. An exchange DCU can be ordered by your parts
department directly from DENSO, after approval from TECH LINE.
1. Duplicate and verify the customer’s concern if possible. If duplication is not possible, gather as much
information about the issue as possible from the service advisor/writer or customer.
2. Check for any connected devices (phone, iPod, MP3 player, etc.) or determine if a connected device is present
during the concern. Gather model and software version information if possible.
3. Contact TECH LINE after gathering preliminary information of the concern. After diagnosis of the concern has
been performed, and the technician and TECH LINE agree that the DCU should be replaced, go to step 4.
4. TECH LINE will confirm with DENSO, by email, that the diagnosis has occurred and a DCU replacement is
approved.
NOTE:

TECH LINE will not send an email or fax to your parts department.

Approval from TECH LINE does not mean the DCU has been ordered. The DCU can be ordered from
DENSO only after approval from TECH LINE (see page 4).
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Order Exchange DCU from DENSO
After steps 1-4 have been completed, your parts department will order the replacement exchange DCU as
instructed below.
5. Fill out the DENSO Exchange Order Form and fax or email it to DENSO.
Order forms are found on NNAnet.com:
a. Log onto NNAnet.com.
b. Confirm Brand View is Infiniti.
c. Select My Links.
d. Select Warranty.
e. Select Electronic Exchange Information – Infiniti.
f.
Scroll down to Denso, and then click on Link to Denso Order Form.
g. Fill out the form. Be sure to use the DCU part number in the Exchange Part #: field.
NOTE: The DCU part number can be found on the label on the back of the DCU, or with CONSULT-III plus
by going to Diagnosis (One System) > MULTI AV > ECU Identification.
6. After the order is submitted, and after TECH LINE has submitted authorization by email, then DENSO will
email confirmation to your parts department that the order has been placed.*
* The DCU order approval process does not apply to all 2017 model year and earlier Infiniti
models. TECH LINE authorization is not needed for all 2017 and earlier models.
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PART 2: Record Multi AV Configuration Values of Original DCU / Replace DCU
7. Prepare the vehicle.

Make sure the shift selector is in Park, and the parking brake is set.

Connect the GR8 to the 12V battery and select ECM Power Supply Mode.

Connect the plus VI to the vehicle.

Launch C-III plus on the CONSULT PC.

Turn the ignition ON. DO NOT start the engine.
 Hybrid vehicles: Turn the ignition to ON. DO NOT put in Ready Mode.
8. Select Re/programming Configuration.
Figure 2
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9. Read the Precautions.
When finished, click in the Confirmed
instructions box to insert a check mark,
and then select Next.
Figure 3
10. Select the Manual Selection (Vehicle
Name) tab, and then select the Vehicle
Name and Model Year.
NOTE: If the screen shown in
Figure 4 does not display, proceed to step
15.
11. Select Select.
Figure 4
12. Confirm the correct Vehicle Name and
Model Year are displayed.

When finished, select Confirm.
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xxxx
Figure 5
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Steps 13 and 14 below apply to 2018-2019 QX30 vehicles ONLY. For all other vehicles, proceed to step 15
on the next page.
13. Select USA/CANADA Dealers in the
drop down menu, and then select OK.
NOTE:

The screen in Figure 6 will only appear
during the first login on a CONSULT
PC. Future logins with same
CONSULT PC will display the screen in
Figure 7 only.

If the screen shown in Figure 6 does
not display, proceed to step 14.
Figure 6
14. Enter your NNAnet.com Username and
Password, and then select Submit.
NNAnet.com
Username &
Password
Figure 7
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15. After System Call completes, confirm the
correct Vehicle Identification Number (VIN)
is displayed.

When finished, select Confirm.
NOTE: If the VIN displayed is incorrect,
input the correct VIN. When finished, select
Confirm.
Figure 8
16. Select MULTI AV.

Use the scroll arrows if needed.
Figure 9
17. Select Before ECU Replacement.
Figure 10
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18. Confirm Setting Value (current
configuration) and write it down.

The current configuration can also be
printed with the Print Screen button or
Screen Capture button.

Use the scroll arrows if more than one
page of information is available.
Write down / print this
information
NOTE: Configurable options will differ.
Your screen may look different.
19. Select Save.
Figure 11
NOTE: If the configuration data cannot be
saved, replace the DCU as instructed in the
applicable Electronic Service Manual
(ESM), and then proceed to page 11,
PART 4: Manually Configure the Multi
AV System (if needed).
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xxxxxxxxxxxxxxxxx
20. Select End.
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Figure 12
21. Replace the DCU as instructed in the applicable ESM.

Refer to the ESM, section DRIVER INFORMATION & MULTIMEDIA > AUDIO, VISUAL & NAVIGATION
SYSTEM > INFINITI INTOUCH > REMOVAL AND INSTALLATION > DISPLAY CONTROL UNIT >
Removal and Installation.
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PART 3: Configure Multi AV System
22. Perform steps 7-15 again before proceeding to step 23.
23. When you get to the screen shown in
Figure 13, select Confirm.
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Figure 13
24. If the screen in Figure 14 appears, skip to
page 14, step 35.
25. If the screen in Figure 14 does not
appear, go to step 26.
Figure 14
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26. Select OK.
After performing Step 26:

If an error message does not display,
proceed to page 15, step 39.

If an error message does display,
proceed to PART 4: Manually
Configure the Multi AV System (if
needed), below.
Figure 15
PART 4: Manually Configure the Multi AV System (if needed)
NOTE: If the screen in Figure 16 is not
displayed, click on the Home icon.
27. Select Re/programming Configuration.
Figure 16
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28. Read the Precautions.
When finished, click in the Confirmed
instructions box to insert a check mark,
and then select Next.
Figure 17
29. Select the Manual Selection (Vehicle
Name) tab, and then select the Vehicle
Name and Model Year.
NOTE: If the screen shown in Figure 18
does not display, proceed to the next page,
step 32.
30. Select Select.
Figure 18
31. Confirm the correct Vehicle Name and
Model Year are displayed.
When finished, select Confirm.
xxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxx
xxxxxxx
Figure 19
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Step 32 below applies to 2018-2019 QX30 vehicles ONLY. For all other vehicles, skip to step 33.
32. Enter your NNAnet.com Username and
Password, and then select Submit.
NNAnet.com
Username &
Password
Figure 20
33. Confirm the correct VIN is displayed.
When finished, select Confirm.
NOTE: If the VIN displayed is incorrect,
input the correct VIN. When finished,
select Confirm.
Figure 21
34. Select MULTI AV.

Use the scroll arrows if needed.
Figure 22
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35. Select After ECU Replacement.
Figure 23
36. Select Manual selection.
Figure 24
37. Use the drop down menus to select the
configuration options that were printed or
written down in step 18.

Use the scroll arrow if more than one
page of information is available.
NOTE: Configurable options may differ
and look different from Figure 25.
Figure 25
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38. Confirm the configuration items displayed
under Setting Value are correct, and
then select OK.
Figure 26
39. Turn the ignition OFF, and then start the engine.
40. After starting the engine, wait for about 30 seconds.
41. Use C-III plus to erase any codes from the Multi AV system.
a. Select Home on the C-III plus screen.
b. Select Diagnosis (One System) > Multi AV > Self Diagnosis Results.
c. Erase any codes that may be present.
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Step 42 below applies to 2018-2019 QX30 vehicles ONLY. For all other vehicles, proceed to step 43.
42. Write down the UNIT ID number (see Figure 27) as follows:
NOTE: The UNIT ID number will be used in Part 5 of the procedure.
a. Select the ECU Identification tab on the C-III plus screen.
b. Write down the UNIT ID number.
Figure 27
43. Close C-III plus and disconnect the plus VI from the vehicle.
44. Check that the operation of the DCU and, if equipped, RearView Monitor camera images (fixed guide lines and
predictive course lines) are normal.
45. Disconnect the GR8 from the 12V battery.
2018-2019 QX30 vehicles only: Go to the next page.
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PART 5: 2018-2019 QX30 Vehicles ONLY – Register Replacement DCU
46. Register the replacement DCU by calling Infiniti Owner Services at 1-855-444-7244. Listen to the prompts
and select the option for the “Infiniti Connection Specialist.”

During this call you will be asked for the UNIT ID number (see step 42) and Vehicle Identification Number
(VIN).

Infiniti Owner Services hours of operation are:
Monday – Saturday: 8:00am to Midnight EST
Closed Thanksgiving, Christmas, and New Years Day
IMPORTANT: Step 46 MUST be performed to register the replacement DCU. If this step is not performed, the
Infiniti InTouch Apps feature – if the vehicle has an active subscription – will not function. Perform this step even if
the vehicle does not have an active Infiniti InTouch Apps subscription, as future enrollment will also be affected.
AMENDMENT HISTORY
PUBLISHED DATE
January 15, 2019
REFERENCE
ITB19-002
DESCRIPTION
Original bulletin published.
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