

If no Saved Data List is stored, Figure 13 on the next page will be displayed.

Step
17

Figure 12

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18. Confirm battery voltage is correct, and then select Next.
NOTE: Battery voltage must stay within the specified range to make the indicator turn green.

Monitor 12V
battery voltage
here

Must be
“Green” before
selecting Next
Step
18

Figure 13
19. With battery voltage OK (green), select Start.


The reprogramming process begins when Start is selected.
NOTE: For reprogramming to continue, the vehicle 12V battery voltage must stay within 12 volts
and 13.5 volts. .

Monitor 12V
battery voltage
here

Step
19

Figure 14

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IMPORTANT: Until the reprogramming has completed:


Do not disconnect the USB cable, although the following message appears:
“Disconnecting CONSULT and VI is Available”






Do not touch the Home button until instructed to.
When the VI is transferring the reprogram to the DAST control module, do not disconnect the VI
from the vehicle even if the PC freezes.
If you need to disconnect the VI, first check the LED on the VI body to confirm that the
communication from the VI to the vehicle has completed and the LED for the vehicle icon is OFF.
If you accidentally disconnect the VI during program writing to the vehicle, the DAST control
module that is being reprogrammed may need to be replaced. Refer to Control Unit Recovery on
the next page.

20. Wait for both bar graphs to complete.

Figure 15
Possible errors that may rarely occur:




If the progress bar freezes at 90% of a complete transfer to the VI and error code “12-1-1NR” is
displayed (see Figure 16 on the next page), turn the ignition OFF, then ON, and then refer to Control
Module Recovery on the next page.
If the progress bar freezes at 90% more than 3 times “on the same DAST control module” but without
Error Code “12-1-1NR”, the DAST control module that is currently being reprogrammed will need to be
replaced.
If the reprogramming does not complete, refer to Control Unit Recovery on the next page.

NOTE: If a DAST control module replacement is required:
 Refer to the appropriate section of the ESM for the procedure to replace and configure a DAST
control module.
 Make sure to perform Read/Write Configuration: Save the Control module’s configuration
before replacement, and then write the configuration to the new control module.
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Control Unit Recovery:
Do not disconnect plus VI or shut down Consult III plus if reprogramming does not complete.
If reprogramming does not complete and the “!?” icon displays as shown in Figure 16:


Check battery voltage
(12.0–13.5 V).



Ignition is ON, engine OFF (not
READY).



External Bluetooth® devices are
OFF.



All electrical loads are OFF.



Select retry and follow the on
screen instructions.



Select Retry if Error
Code 12-1-1-NR is
present.

“Retry” may not go through on the
first attempt and can be selected
more than once.

Figure 16
If reprogramming does not complete and the “X” icon displays as shown in Figure 17:


Check battery voltage
(12.0 – 13.5 V).



CONSULT A/C adapter is plugged
in.



Ignition is ON, engine OFF (not
READY).



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 17

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21. When the screen in Figure 18 appears, reprogramming is complete.
22. Select Next.
23. Wait for System Call to complete.

Step
22

Figure 18
24. Erase all DTCs as follows:
a. Turn the ignition OFF.


The screen in Figure 19 will read OFF after pressing the power/ignition switch once.

Turn ignition switch OFF position

ON to
OFF

OFF

Figure 19

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b. Turn the ignition ON with engine OFF (press switch twice, foot off brake).


The screen in Figure 19 will read ON after pressing the power/ignition switch twice.

NOTE: Do not be confused by any screen messages. At this point, simply turn the ignition ON.

OFF to
ON

Figure 20
c. Wait for the bar graph in the ERASE window to complete 100%.
d. Select Next.

Step
24c

Step
24d

Figure 21

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25. Verify the part number has changed (before and after reprogramming part numbers should be different).
a. Print a copy of the screen in Figure 22 by selecting Print.
b. Attach a copy to the repair order.
c. Once a copy has been printed, select Confirm.

Step
25

Step
25a
Step
25c

Figure 22

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26. After Confirmation has completed, select Home.

Step
26

Figure 23

27. Repeat the entire reprogramming procedure for DAST 2.

28. Repeat the entire reprogramming procedure for EPS/DAST 3.

After all three reprograms (DAST 1, DAST 2, and EPS/DAST 3) are complete, the procedure is finished.

CLAIMS INFORMATION
Submit a “CM” line claim using the following claims coding:
CAMPAIGN (“CM”) I.D.
P4201

DESCRIPTION
Reprogram DAST

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OP CODE
P42010

FRT
1.0

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OWNER LETTER (typical owner letter)
Dear Infiniti Q50 Owner:
Infiniti is committed to providing the highest levels of product safety, quality and customer satisfaction. With
that in mind, we want to bring to your attention important information regarding a voluntary service campaign to
update the Direct Adaptive Steering™ (DAS) system on your vehicle.
REASON FOR SERVICE CAMPAIGN
In certain conditions such as freezing outside temperatures or a drop in battery charge at startup, the current
DAS system software calibration may switch the system to a manual steering mode that requires a noticeable
increase in steering effort and illuminates one or more error messages on the vehicle information display. To
help prevent this from occurring, Infiniti will update the DAS software and recalibrate the system.
WHAT INFINITI WILL DO
To ensure your continued satisfaction and confidence in your Q50, your authorized Infiniti retailer will perform a
DAS system diagnostic check, software update, and recalibration. In certain instances, your Infiniti retailer may
need to replace the DAS control units. All services will be performed at no cost to you for parts or labor.
This service should take approximately 2 hours to complete, but your Infiniti retailer may require your vehicle for
a longer period of time based upon their work schedule.
WHAT YOU SHOULD DO
Please contact your Infiniti retailer at your earliest convenience in order to set an appointment to have your
vehicle upgraded at no expense to you. Please bring this notice with you to your service appointment. We
understand your time is valuable so your retailer will work with you to make the update as convenient as
possible.
Thank you for your cooperation and we are indeed sorry for any inconvenience this may cause you.
Should you have any questions, our representatives would be pleased to assist you.
 Call 1-800-662-6200 or
 Visit http://www.infinitiusa.com

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