NHTSA ID Number: 10220187
Manufacturer Communication Number: LSB002121Rev1
TSB/Document Date: 2022-09-15
Summary
TSB: This Service Bulletin provides a procedure to properly perform the Techstream ?Control the Injection Mode? active test in some 2016 ? 2022 model year Lexus
vehicles equipped with an FKS engine
L-SB-0021-21
Rev1
July 20, 2021
Injection Mode Active Test Diagnostics
Service
Category
Engine/Hybrid System
Section
Engine Control
Market USA
Applicability
YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2021 - 2022
ES250
VDS(s): B11D1
Engine(s): A25
2019 - 2022
ES350
VDS(s): BZ1B1
Engine(s): 2GR
2017 - 2020
GS350
VDS(s): BZ1BL
Engine(s): 2GR
2017 - 2022
IS300, IS350
VDS(s): A81F2
Engine(s): 2GR
2017 - 2022
RC300, RC350
VDS(s): A85EC
Engine(s): 2GR
2016 - 2022
RX350
VDS(s): AZKEA
Engine(s): 2GR
2019 - 2022
UX200
VDS(s): E3JBH
Engine(s): M20
REVISION NOTICE
June 20, 2022 Rev1:
Applicability has been updated to include 2022 model year ES 250, ES 350, IS 300, IS 350,
RC 300, RC 350, RX 350, and UX 200 vehicles.
The Test Procedure section has been updated.
Any previous printed versions of this bulletin should be discarded.
© 2021 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 7
L-SB-0021-21
Rev1
July 20, 2021
Page 2 of 7
Injection Mode Active Test Diagnostics
Introduction
This Service Bulletin provides a procedure to properly perform the Techstream “Control the
Injection Mode” active test in some 2016 – 2022 model year Lexus vehicles equipped with an
FKS engine.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
N/A
Not Applicable to Warranty
–
–
–
–
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.
Software version 17.00.020 or later is required.
Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
© 2021 Lexus, a division of Toyota Motor Sales, USA
L-SB-0021-21
Rev1
July 20, 2021
Page 3 of 7
Injection Mode Active Test Diagnostics
Test Procedure
1. Start the engine and turn OFF the A/C.
2. Connect Techstream to the vehicle and navigate to Engine Active Test – Control the
Injection Mode.
3. Verify the execute conditions are met to perform the active test.
NOTICE
The vehicle MUST be stopped with the engine idling, and the coolant temperature MUST be
above 176°F (80°C).
4. Select OK.
Figure 1.
1
1
z
Active Test Selection
2
z
2
Execute Conditions
© 2021 Lexus, a division of Toyota Motor Sales, USA
L-SB-0021-21
Rev1
July 20, 2021
Page 4 of 7
Injection Mode Active Test Diagnostics
Test Procedure (continued)
5. Select the criteria desired for monitoring (see Figure 2).
A. Select Primary as the data set to be displayed.
B. Select the parameters.
(1) Engine speed
(2) Injection Mode
(3) Short FT(s)
(4) Long FT(s)
C. Select the graph button.
Figure 2. Example of Selecting Criteria for Monitoring
2
1
z
z
3
z
1
Data Set to Be Displayed
3
Graph Button
2
Parameters
4
Record Button
6. Press the record button to start recording.
© 2021 Lexus, a division of Toyota Motor Sales, USA
4
z
L-SB-0021-21
Rev1
July 20, 2021
Injection Mode Active Test Diagnostics
Test Procedure (continued)
7. Select Direct on the Control the Injection
Mode window.
Figure 3.
8. Raise the engine to 2,000 RPM.
Figure 4.
9. Press Start.
10. Keep the engine RPM at 2,000 for
30 seconds.
11. Idle the engine for one minute.
12. Click Stop.
Figure 5.
13. Select Port on the Control the Injection
Mode window.
Figure 6.
© 2021 Lexus, a division of Toyota Motor Sales, USA
Page 5 of 7
L-SB-0021-21
Rev1
July 20, 2021
Injection Mode Active Test Diagnostics
Test Procedure (continued)
14. Raise the engine to 2,000 RPM.
Figure 7.
15. Press Start.
16. Keep the engine RPM at 2,000 for
30 seconds.
17. Idle the engine for one minute.
Figure 8.
18. Click Stop.
19. Click the record button to stop recording.
© 2021 Lexus, a division of Toyota Motor Sales, USA
Page 6 of 7
L-SB-0021-21
Rev1
July 20, 2021
Page 7 of 7
Injection Mode Active Test Diagnostics
Test Procedure (continued)
Figure 9. Primary Data List Graph Snapshot
1
z
2
z
3
1
Injection Mode Parameter
3
Port Injection Mode Confirmation
2
z
Direct Injection Mode Confirmation
20. Utilizing the primary data list graph snapshot, confirm the switch occurred when commanded
with the injection mode parameter.
Did the vehicle respond to the selected modes (direct and port) during the active test?
YES — The active test is complete.
NO — Retake the active test, return to step 2.
NOTE
If the active test is used multiple times without using this procedure to raise engine RPM, it may be
necessary to reset learning values for fuel trim and air to fuel ratio before returning the vehicle to
the customer.
© 2021 Lexus, a division of Toyota Motor Sales, USA
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TSB/Document ID: LSB002121Rev1
Replacement Service Bulletin Number:
MFR Communication Date: 2022-06-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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