NHTSA ID Number: 11021730
Manufacturer Communication Number: L-SB-0032-25
TSB/Document Date: 2025-08-08
Summary
Some 2016 – 2020 model year GS F, 2008 – 2014 model year IS F, 2022 – 2025 model year IS 500, 2018 – 2025 model year LC 500, 2021 – 2025 model year LC 500c, and 2015 – 2025 model year RC F vehicles with 2UR-GSE engines may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): •P0505 – Idle Control System •P2111 – Throttle Actuator Control System – Stuck Open The throttle body assembly with motor and ventilation hoses no. 2 and no. 3 have been modified to address these conditions.
L-SB-0032-25
July 30, 2025
MIL ON With DTC P0505 and/or P2111
Service
Category
Engine/Hybrid
System
Market USA and
Section
Mexico
Engine Control
Applicability
YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2016 - 2020
GS F
Engine(s): 2UR
2008 - 2014
IS F
Engine(s): 2UR
2022 - 2025
IS500
Engine(s): 2UR
2018 - 2025
LC500
Engine(s): 2UR
2021 - 2025
LC500C
Engine(s): 2UR
Body Type(s): Convertible
2015 - 2025
RC F
Engine(s): 2UR
Introduction
Some 2016 – 2020 model year GS F, 2008 – 2014 model year IS F, 2022 – 2025 model year
IS 500, 2018 – 2025 model year LC 500, 2021 – 2025 model year LC 500c, and 2015 – 2025
model year RC F vehicles with 2UR-GSE engines may exhibit a MIL ON condition with one or
more of the following Diagnostic Trouble Codes (DTCs):
P0505 – Idle Control System
P2111 – Throttle Actuator Control System – Stuck Open
The throttle body assembly with motor and ventilation hoses no. 2 and no. 3 have been modified to
address these conditions. Follow the Repair Procedure in this bulletin to address these conditions.
© 2025 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 6
L-SB-0032-25
July 30, 2025
Page 2 of 6
MIL ON With DTC P0505 and/or P2111
Production Change Information
This bulletin applies to vehicles produced BEFORE the Production Change Effective VINs
shown below.
MODEL
PLANT
ENGINE
FRAME TYPE
VDS
PRODUCTION CHANGE EFFECTIVE VIN
AP5AY
HP5AY
JP5AY
DP5AY
LC 500
JTHLP5AY#SA111756
BP5AY
LP5AY
CP5AY
URZ100
Motomachi
EP5AY
BP5AY
MPAAY
KPAAY
LC 500c
JTHMPAAY#SA111757
GPAAY
2UR-GSE
JPAAY
NPAAY
GSF
URL10
IS F
USE20
BP1BL
JTHBP1BL#LA003244
BP262
JTHBP5C2#E5011515
BP5C2
UP1D2
IS 500
USE30
JTHAP1D2#S5007419
AP1D2
Tahara
JP5BC
BP5BC
RC F
USC10
YP5BC
AP5BC
DP5BC
© 2025 Lexus, a division of Toyota Motor Sales, USA
JTHBP5BC#S5009207
L-SB-0032-25
July 30, 2025
Page 3 of 6
MIL ON With DTC P0505 and/or P2111
Warranty Information
For USA Market
OP CODE
EG2501
DESCRIPTION
R & R Throttle Body Assembly
With Motor, Gasket, and
Ventilation Hoses
MODEL
TIME
IS 500
1.3
GS F
RC F
1.4
IS F
1.5
LC 500
1.6
LC 500c
1.8
OFP
T1
T2
22030-38###*
8A
99
*Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle being
repaired by searching for the parts in the Electronic Parts Catalog using the VIN filter.
APPLICABLE WARRANTY
This repair is covered under the Lexus Basic Warranty. This warranty is in effect
for 48 months or 50,000 miles, whichever occurs first, from the vehicle’s in-service date.
For vehicles equipped with a California Certified Emission Control System that are registered
and operated in California or any state that adopts California emission warranty — California
Emission Long-Term Defect Warranty is in effect for 7 years or 70,000 miles from the vehicle’s
in-service date, whichever occurs first. (Please reference Policy 4.7, and/or the Owner’s
Warranty & Maintenance Guide for additional information).
Warranty application is limited to occurrence of the specified condition described in
this bulletin.
© 2025 Lexus, a division of Toyota Motor Sales, USA
L-SB-0032-25
July 30, 2025
Page 4 of 6
MIL ON With DTC P0505 and/or P2111
Warranty Information (continued)
For Mexico Market
OP CODE
DESCRIPTION
R & R Throttle Body Assembly
With Motor, Gasket, and
Ventilation Hoses
EG2501
MODEL
TIME
IS 500
1.3
GS F
RC F
1.4
IS F
1.5
LC 500
1.6
LC 500c
1.8
OFP
T1
T2
22030-38###*
8A
99
*Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle being
repaired by searching for the parts in the Electronic Parts Catalog using the VIN filter.
APPLICABLE WARRANTY
This repair is covered under the Lexus Basic Warranty. This warranty is in effect
for 48 months or 80,000 kilometers, whichever occurs first, from the vehicle’s in-service date.
Warranty application is limited to occurrence of the specified condition described in
this bulletin.
Parts Information
PART NUMBER
PART NAME
PREVIOUS
NEW
12262-38091
12262-38092
QTY
1
Ventilation Hose No. 2*
12262-38100
12262-38101
12263-38051
12263-38052
1
1
Ventilation Hose No. 3*
12263-38060
12263-38061
22030-38050
1
Throttle Body Assy w/ Motor
*Confirm that the correct ventilation hoses are being ordered from the Electronic Parts Catalog using the VIN filter.
© 2025 Lexus, a division of Toyota Motor Sales, USA
1
L-SB-0032-25
July 30, 2025
Page 5 of 6
MIL ON With DTC P0505 and/or P2111
Required Tools & Equipment
REQUIRED MATERIAL
PART NUMBER
QTY
Super Long-Life Coolant (SLLC)
00272-SLLC2
9.5 qts
(9.0 liters)
REQUIRED EQUIPMENT
SUPPLIER
Techstream ADVi*
Techstream Lite
PART NUMBER
QTY
TSADVUNIT
ADE
Techstream Lite (Green Cable)
TSLITEPDLR01
TSLP2DLR01
*Essential SST.
NOTE
Only ONE of the Techstream units listed above is required.
GTS+ software version 2025.02.006.02 or later is required.
Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787 (USA) or 01-55-50103041 (Mexico) or by visiting TIS – Diagnostics –
Tools & Equipment – Techstream Order Portal.
Repair Procedure
1. Confirm the condition exists.
Does the vehicle exhibit a MIL ON with one or more of the following DTCs:
P0505 – Idle Control System
P2111 – Throttle Actuator Control System – Stuck Open
YES — Continue to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
© 2025 Lexus, a division of Toyota Motor Sales, USA
1
L-SB-0032-25
July 30, 2025
Page 6 of 6
MIL ON With DTC P0505 and/or P2111
Repair Procedure (continued)
2. Remove the throttle body assembly with motor and ventilation hoses no. 2 and no. 3.
Refer to TIS, applicable model and model year Repair Manual:
2016 – 2020 GS F:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Removal
2008 / 2009 / 2010 / 2011 / 2012 / 2013 / 2014 IS F:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Removal
2022 – 2025 IS 500:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Removal
2018 – 2025 LC 500:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Removal
2021 – 2025 LC 500c:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Removal
2015 – 2025 RC F:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Removal
3. Install the NEW throttle body assembly with motor and ventilation hoses no. 2 and no. 3.
Refer to TIS, applicable model and model year Repair Manual:
2016 – 2020 GS F:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Installation
2008 / 2009 / 2010 / 2011 / 2012 / 2013 / 2014 IS F:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Installation
2022 – 2025 IS 500:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Installation
2018 – 2025 LC 500:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Installation
2021 – 2025 LC 500c:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Installation
2015 / 2016 – 2025 RC F:
Engine / Hybrid System – 2UR-GSE (Engine Control): Throttle Body – Installation
4. Clear ALL DTCs and confirm the conditions are no longer present.
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TSB/Document ID: L-SB-0032-25
Replacement Service Bulletin Number:
MFR Communication Date: 2025-07-30
MFR Internal Campaign ID/Software Version: L-SB-0032-25
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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