a. Make sure that Pre-delivery Service has been completed before this reprogramming. If Predelivery service has not been completed before this reprogramming, the reprogramming
may not be completed correctly. Refer to T-SB-0083-19 or T-SB-0038-20 for Pre-delivery
technical instructions.
2. START THE Toyota ISTA
a. Double-click the icon to start Toyota ISTA.
NOTICE:
After double-clicking, it takes about 15 seconds for Toyota ISTA to
start. Please wait without double-clicking again.

b. The following screen appears. Click “Accept”.

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c. Double-click the operations bar to maximize screen and make the toolbar visible.

3. ACTIVATE TO PAD MODE
a. PAD mode can be activated by pressing the start button 3
times in under 0.8 seconds (very fast) or by directly
connecting the Toyota ISTA software and initiating the
vehicle connection.
While the vehicle is in PAD mode all energy
monitoring logic will be disabled. The technician
must utilize a battery charger to maintain sufficient
current during all diagnosis and programming
activities. If the battery charger is not connected
battery life will be affected and ECU damage could
occur.
NOTICE:
Ensure the pre-delivery service has already been completed on the
vehicle. Part of pre-delivery service involves switching of
“transportation mode”, which is required before proceeding with
this remedy procedure.

DO NOT open or close the driver’s door during the
programming routine. Perform only the vehicle
operations indicated on the Toyota ISTA screen.

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b. From Toyota ISTA home screen, click “Cases” -> “New” -> “Read out vehicle data”.
c. At the bottom right of the screen, click “Full identification”.

d. At the “Connection manager” screen, select the vehicle identification number, and then click
“Establish connection”.

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e. “Background process is being carried out” is started automatically.

NOTICE:
If the following “Information” dialog box is displayed, click “OK” to continue.

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f. After clicking “OK”, “Background process is being carried out” continues.

g. After “Background process is being carried out” has ended, the “Control unit tree” screen
appears.
NOTICE:
When Fault memory “Present” or “Existing” is displayed at the bottom left of the screen, check for DTCs.
Note that this campaign does not cover the diagnostic fees and/or repairs for any DTC’s.

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NOTICE:
If the dialog box in the image appears when the screen changes to “Control unit tree” screen, click “OK” to
close the dialog box, and then continue work. Toyota ISTA will attempt to establish a data exchange with
the central server. In the absence of an available connection route (because of no Internet connection is
available or the PC connection isn’t setup), Please verify your connection and click “OK”.

4. CHECK IF PROGRAM TCB (TELEMATIC COMMUNICATION BOX) IS DISPLAYED
a. Select “Service plan” - > “Programming plan”.
b. The screen changes to the “Action plan” screen and "Please wait" message appears.

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c. After the "please wait" message closes and the screen changes, check if “Program TCB” is
displayed on “Planned actions” column.

Display on “Planned actions” Column
“Program TCB” is shown

“Program TCB” is NOT shown

Required Action
Proceed to section XIV
Manually configure “Program TCB”. Proceed to next
section.

• The vehicle I-Level before reprogramming is necessary for the warranty claim
since the reprogramming time differs depending on it. Make sure to check
and record the vehicle I-Level before reprogramming and also remaining time
which is just after starting to reprogram.

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XIII.

MANUALLY CONFIGURE PROGRAM TCB BY SOFTWARE UPDATE

a. Select “Vehicle management” - > “Software update”.
b. The screen changes to the “Comfort” screen and "Please wait" message appears.

c. When the display changes, select “Expanded”.

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d. When the display changes, check if the “Telematic Communication Box” is displayed on the
“Control unit name” column.

e. Click the box on “Programming” column of “Telematic Communication Box” to cross out.
HINT:
“Coding” column will be crossed out automatically.

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f. Click “Display action plan”.

g. The screen changes to the “Action plan” screen, confirm” Program TCB” is shown and press
the, “Calculate action plan”.

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XIV. REPROGRAMMING TELEMATIC COMMUNICATION BOX
• The vehicle I-Level before reprogramming is necessary for the warranty claim
since the reprogramming time differs depending on it. Make sure to check
and record the vehicle I-Level before reprogramming and also remaining time
which is just after starting to reprogram.
a. Click “Perform action plan”.
NOTICE:
After clicking “Perform action plan”, carry out the on-screen instructions of Toyota ISTA reliably.

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b. “Executing measures plan” appears the top middle of the screen (header line). Check the
content that is displayed in the “Information” dialog box, and then click “OK”.

c. “Warning!” and “Notice!” will be displayed in the “Attention!” dialog box. Check the content
in the dialog box, and then click “Continue” to continue the “Action plan”.

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d. Please check carefully the content displayed in the “Preparation for the vehicle programming”
dialog box, and then click “Continue”.

DO NOT put your head or hand in the window of the
vehicle you are reprogramming. Since the window
may close automatically at the time of initialization,
there is the risk of being pinched and injured.

DO NOT open or close the driver’s door during the
programming routine.

The Programming could take 50 minutes to 3
hours, ensure that the vehicle is not accidentally
disturbed by other team members during the
reprogramming.

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e. The top middle of the screen (header line) switches to “Saving individual data”. “Save
individual data HU-H” is executed first. If it completes normally, a checkmark (✓) is displayed
in the “Status” column.

HINT:
The icons in the diagram indicate the state values.

NOTICE:
If the reprogramming of HU-H is aborted and screen of the navigation displays a blue screen, follow the
steps shown in XVIII. HU-H WITH ABORTED REPROGRAMMING-HOW TO RECOVER AND FINALIZE
THE REPROGRAMMING.

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f. The top middle of the screen (header line) switches to “Executing Software actions”. When
“Warning” dialog box appears, click “OK”.

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g. The reprogramming progress status of each ECU is displayed in the “Status” column. The
overall progress status of reprogramming is indicated by “Executing software actions” at the
top center of the screen (header line), which shows the reprogramming progress status and
approximate “Remaining time”.
• Please take a screenshot of a current I-level and remaining time of
Techstream screen as the evidence, and please keep it in each dealership,
refer to below sample.
The vehicle I-Level before reprogramming and an actual operation time are
necessary for the warranty system. The actual operation time is: Total of
remaining time plus 0.1 hours for administration cost for the dealership.

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• Even when the “Status” column is filled with checkmarks (✓), always check
the display at the top center of the screen (header line) for the progress
status, because initialization and other work is being carried out in addition
to reprogramming.
• Wait until the reprogramming is finished before manipulating the ISTA
software to avoid interfering with the reprogramming.

h. “Executing follow-up operations” is displayed in the center of the screen (header line).

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NOTICE:
If the following “Information” dialog box is displayed during “Executing follow-up operation”, click “OK” to
continue the follow-up operation. After reprogramming is complete, follow the on-screen instructions and
carry out initialization and other work.

HINT:
If the following dialog box appears, click “OK”.

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i.

“Calculating final context” appears at the center of the screen (header line). At the same
time, a “Please wait….” message appears to allow for the completion of the action plan.

j.

After the “Status of action plan implementation” dialog box appears, click “OK”.

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k. On “Final report” screen, confirm “Program TCB” and “Code TCB” are shown on the “Actions
performed” column, and the boxes on “Status” column are checked.
NOTICE:
On “Final report” screen, if “Program TCB” and “Code TCB” are not displayed on the “Actions performed”
column, perform the procedure once again from XV. MANUALLY CONFIGURE PROGRAM TCB BY
SOFTWARE UPDATE.

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XV. DISCONNECT TOYOTA ISTA
1. CLOSING OUT OF TOYOTA ISTA
a. Select “Cases” -> “Active” to display the “Case list”.
b. Confirm the vehicle information is correct, and then click “Close case”.

c. When the “Open actions in action plan” dialog box appears, click “Yes”.

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d. Make sure that the frame of the icon at the left end of the toolbar at the top left of the screen
has turned gray, and then click “×”.

e. Click “OK” when the “Close program” dialog box appears.

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f. Open the driver-side door, press the Start/Stop button once, and then close the door.
NOTICE:
PAD mode is turned off, and the headlights are turned off by opening the driver-side door, pressing the
Start/Stop button once, and then closing the door.

g. Disconnect the ISTA diagnostic cable and battery charger.

XVI. HU-H WITH ABORTED REPROGRAMMING-HOW TO RECOVER AND FINALIZE
THE REPROGRAMMING
1. SITUATION AT BEGINNING
• In this print screen the HU-H is colored in Blue. This corresponds to the
state of an ECU with programming abort.
• On the vehicle itself this can be recognized by the fact the screen of the
navigation will display a Blue screen.

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2. ABL FOR RECOVERING HU-H WITH ABORTED REPROGRAMMING
The new function becomes active only after a failed reprogramming.
(failed reprogramming > go to the indicated location during the same session
and launch this function).
If the failed reprogramming session was closed, perform the reprogramming
once again to make ISTA recognize the “HU-H reprogramming abort” and then
go to the indicated location below.
a. The function can be found in Vehicle Management-> Troubleshooting-> Function Structure->
Body-> Audio mode -> (!) Current fault patterns-> Head unit fault patterns.

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b. The role of this ABL is to recover the damaged bootloader segment of a HU-H after an
aborted reprogramming. At this step if the vehicle corresponds to the description, select
“Yes”.

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c. Select “Continue”.

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d. The procedure is composed of 3 phases that ISTA will conduct in an automated fashion.

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e. The procedure is finalized now, and the head unit is now ready to be reprogrammed.

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◄ VERIFY REPAIR QUALITY ►
− Confirm the ISTA system calibration has been updated successfully.
− Confirm there are no DTCs after the calibration update.

XVII. APPENDIX
A. PARTS DISPOSAL
In accordance with Federal law, please make sure all recalled parts (original parts) removed
from the vehicle are disposed of in a manner in which they will not be reused, unless
requested for parts recovery return.

Campaign Designation / Phase Decoder

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