Classification:

Reference:

Date:

EL18-040a

ITB19-002a

July 26, 2019

2018-2019 INFINITI;
DISPLAY CONTROL UNIT SERVICE INFORMATION
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.

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,
and 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.

Go to the Denso-Ten website (https://www.f10ncs.com), and login with your username and password.


6.

If you do not have a login username and password (first time users), call Denso-Ten tech line (1-800237-5413, Mon – Fri: 7:00am – 4:00pm PT) to obtain a login username and password.

Select Orders > Place An Order.

Figure 2

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7.

Enter the Dealer contact information, vehicle information, and warranty status information.

8.

Select Next.

Populate all fields

Figure 3

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9.

Select the vehicle model and original DCU part number.


The DCU part number can be found on the label on the back of the DCU, or with C-III plus by going to
Diagnosis (One System) > MULTI AV > ECU Identification.

NOTE: The replacement DCU you receive may have a different part number than the original DCU.

10.

Select Next.

xxxxx

QX60

Figure 4

xxxxx
xxxxx
xxxxx
xxxxx
xxxxx
xxxxx
xxxxx
xxxxx
xxxxx

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11.

Populate the Customer Complaint field, choose a symptom from the drop down menu, and select an
option for each displayed question.

12.

Select Next.
Enter customer
complaint here

Figure 5

13.

Select the conditions under which the symptoms occurred.

14.

Select Next.

Figure 6

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15.

Check all symptoms that apply for each component.

16.

Select Review.

Figure 7
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17.

Confirm all of the information displayed is accurate, and then select submit order.
NOTE: Changes cannot be made once an order has been submitted.


If changes are needed, select Cancel and Edit to return to the form.

xxxxxxx
xxxxxxx
xxxxxxx
xxxxxxx
xxxxxxx
xxxxxxx
xxxxxxx

xxxxxxx
xxxxxxx
xxxxxxx
xxxxxxx
xxxxxxx
xxxxxxx
xxxxxxx

QX60

xxxxxxx
xxxxxxx
xxxxxxx

xxxxx

Click here to
make
changes

Figure 8

18.

After sumbit order is selected, a confirmation page and number will display. If needed, select View My
Order, Submit a New Request, or Printer Friendly Page.

xxxxxxxxxxxxxxxxx

xxxxxxxxxxxx

Figure 9
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NOTE:


To view order status and shipping/tracking information at a later date, select View Orders on the DensoTen website and select the applicable order.

Figure 10

xxxxxxxxxxxxxxx

Figure 11

19.

After the order is submitted, DENSO will email a confirmation to your parts department stating the order has
been placed.

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PART 2: Record Multi AV Configuration Values of Original DCU / Replace DCU

20.

Prepare the vehicle:


Make sure the shift selector is in Park and the parking brake is set.



Connect a battery maintainer or smart charger set to reflash mode or a similar setting.



Connect the plus VI to the vehicle.



Launch C-III plus on the CONSULT PC.



Turn the ignition ON. DO NOT start the engine.


21.

Hybrid vehicles: Turn the ignition to ON. DO NOT put in Ready Mode.

Select Re/programming Configuration.

Figure 12

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22.

Read the Precautions.
When finished, click in the Confirmed
instructions box to insert a check
mark, and then select Next.

Figure 13

23.