T-SB-0120-20 Rev

T-SB-0120-20
Rev1
December 11, 2020
Replacement ECU Software Configure Process
Service
Category
Steering
Section
Power Assist Systems
Market USA
Applicability
YEAR(S)
MODEL(S)
2022 - 2023
Tundra, Tundra HV
2021 - 2023
Venza HV
2023
bZ4X, Corolla, Corolla
Cross, Corolla Cross HV,
Corolla HV, Crown, GR
Corolla, Prius, Sequoia HV
ADDITIONAL INFORMATION
REVISION NOTICE
March 15, 2023 Rev1:
 Applicability has been updated to include 2022 – 2023 model year Tundra, Tundra Hybrid, and
Venza Hybrid vehicles and 2023 model year bZ4X, Corolla, Corolla Cross, Corolla Cross Hybrid,
Corolla Hybrid, Crown, GR Corolla, Prius, and Sequoia Hybrid vehicles.
 The Introduction section has been updated.
Any previous printed versions of this bulletin should be discarded.
Introduction
Some 2021 – 2023 model year Toyota vehicles may require the download and installation of
vehicle specific software or configuration software when the Electronic Control Unit (ECU) is
replaced. Techstream software has been modified to indicate when configuration software is
required. A new Configure column has been added to the Techstream Health Check Results
screen to show when configuration software is available for a specific ECU. Follow the Operation
Procedure in this bulletin to complete the ECU Software Configure Process.
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Replacement ECU Software Configure Process
Introduction (continued)
Refer to the applicability chart below for a list of Models and ECUs that will require configuration
software when the specified ECU is replaced:
YEAR(S)
MODEL(S)
ECU(S) REQUIRING CONFIGURATION SOFTWARE
bZ4X
Airbag / Body / Brake / HV / MG
Corolla / Corolla HV
Airbag / Body / EMPS / Engine / HV / Inverter /
Power Distribution Box
Corolla Cross / Corolla Cross HV
Airbag / Body
Crown
Absorber Control / Airbag / ANC / Body /
Brake / ECM / EMPS / HV
GR Corolla
4WD / Airbag / Body / EMPS / Engine /
Power Distribution Box
Prius
Airbag / Blindspot / Body / Engine / EMPS /
Front Side Radar / HV / Inverter
Sequoia HV
Airbag / ANC / Body / Brake / ECT /
EMPS / Engine
2022 – 2023
Tundra / Tundra HV
ANC / Body / Brake / ECT / EMPS
2021 – 2023
Venza HV
Body / EMPS
2023
NOTE
ECU is a Toyota term used to describe integrated computerized devices responsible for managing the
operation of a system or subsystem. In this bulletin, ECU is used as a generic label for the following SAE
J1930 standard references:




Powertrain Control Module (PCM).
Engine Control Module (ECM).
Transmission Control Module (TCM).
Any other Toyota specific control unit.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
N/A
Not Applicable to Warranty
–
–
–
–
© 2023 Toyota Motor Sales, USA
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Rev1
December 11, 2020
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Replacement ECU Software Configure Process
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
Techstream ADVI*
PART NUMBER
QTY
TSADVUNIT
Techstream 2.0
TS2UNIT
ADE
1
Techstream Lite
TSLITEPDLR01
Techstream Lite (Green Cable)
TSLP2DLR01
*Essential SST.
NOTE
 Only ONE of the Techstream units listed above is required.
 GTS+ software version 2022.04.004.02 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
Battery Diagnostic Tool*
DCA-8000P T
1
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.
© 2023 Toyota Motor Sales, USA
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Rev1
December 11, 2020
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Replacement ECU Software Configure Process
Operation Procedure
1. AFTER ECU replacement, connect Techstream, select the applicable vehicle and options, and
select Next.
Figure 1.
© 2023 Toyota Motor Sales, USA
T-SB-0120-20
Rev1
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Replacement ECU Software Configure Process
Operation Procedure (continued)
2. Perform a Health Check. During the Health Check, Techstream will automatically detect the
replacement ECU needs configuration software. On the Health Check Results page, select Yes
in the Configure column to begin the configuration software download process.
Figure 2.
© 2023 Toyota Motor Sales, USA
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December 11, 2020
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Replacement ECU Software Configure Process
Operation Procedure (continued)
3. Login to TIS.
Figure 3.
4. Enter a password for secondary authentication and select Login.
Figure 4.
5. When the ECU Configure Software confirmation screen is displayed, return to Techstream.
Figure 5.
© 2023 Toyota Motor Sales, USA
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Replacement ECU Software Configure Process
Operation Procedure (continued)
6. Has the configuration software been previously downloaded?

YES — Continue to step 7.

NO — Select Next as shown in the figure below and continue to step 7.
Figure 6.
NOTE
Selecting Output will display a list of the required configuration software for each ECU. This feature
is available to print the list of required ECU software when needed.
© 2023 Toyota Motor Sales, USA
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Replacement ECU Software Configure Process
Operation Procedure (continued)
7. Downloading the software may take several minutes. When the download is complete, select
Next to start the Calibration Update Wizard (CUW).
Figure 7.
8. Refer to Service Bulletin No. T-SB-0107-20 ECU Flash Reprogramming With Security
Signature and complete the programming as instructed there.
© 2023 Toyota Motor Sales, USA
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Replacement ECU Software Configure Process
Operation Procedure (continued)
9. When programing is complete, Techstream will send the updated vehicle information to TIS.
Select Next.
Figure 8.
10. Enter a password for secondary authentication and select Login.
Figure 9.
© 2023 Toyota Motor Sales, USA
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Replacement ECU Software Configure Process
Operation Procedure (continued)
11. Return to Techstream when the ECU Configure Software confirmation displays, as
shown below.
Figure 10.
12. Once Vehicle Information has been sent to TIS, select Exit, clear any DTCs that may have
been set, and perform a final Health Check to confirm no additional software updates
are available.
Figure 11.
© 2023 Toyota Motor Sales, USA