NHTSA ID Number: 11020656
Manufacturer Communication Number: L-SB-0043-23 Rev1
TSB/Document Date: 2025-07-10
Summary
The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
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TSB/Document ID: L-SB-0043-23 Rev1
Replacement Service Bulletin Number:
MFR Communication Date: 2025-06-13
MFR Internal Campaign ID/Software Version: L-SB-0043-23 Rev1
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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L-SB-0043-23
Rev1
August 21, 2023
Air Conditioning Leak Detection Dye and O-ring Joint
Inspection
Service
Category
Vehicle Interior
Section
Heating/Air Conditioning
Market USA and
Mexico
Applicability
YEAR(S)
MODEL(S)
2013 - 2018
CT200H, GS450H
2022 - 2025
ES250, IS500, LX600,
NX250, NX350, NX350H,
NX450H+
2013 - 2025
ES300H, ES350, IS350,
RX350
2016 - 2020
GS F
2016 - 2017
GS200T, IS200T, RC200T
2018 - 2019
GS300
2013 - 2020
GS350
2013 - 2023
GX460
2024 - 2025
GX550, RX450H+, RZ300E,
TX350, TX500H, TX550H+
2013 - 2014
IS F
2013 - 2015
IS250, IS250C, IS350C
2016 - 2025
IS300
2018 - 2025
LC500, LC500H, LS500,
LS500H, RC300
2021 - 2025
LC500C
2012
LFA
2013 - 2017
LS460
2013 - 2016
LS600H
2013 - 2021
LX570
ADDITIONAL INFORMATION
© 2025 Lexus
, a division of Toyota Motor Sales, USA
Page 1 of 25
L-SB-0043-23
Rev1
August 21, 2023
Air Conditioning Leak Detection Dye and O-ring Joint Inspection
2025
LX700H, UX300H
2015 - 2017
NX200T
2018 - 2021
NX300
2015 - 2021
NX300H
2015 - 2025
RC F, RC350
2023 - 2025
RX350H, RX500H, RZ450E
2013 - 2022
RX450H
2019 - 2022
UX200
2019 - 2024
UX250H
© 2025 Lexus, a division of Toyota Motor Sales, USA
Page 2 of 25
L-SB-0043-23
Rev1
August 21, 2023
Page 3 of 25
Air Conditioning Leak Detection Dye and O-ring Joint Inspection
Applicability (continued)
REVISION NOTICE
June 13, 2025 Rev1:
Applicability has been updated to include 2022 – 2025 model year NX 350h, 2024 model year
UX 250h, 2024 – 2025 model year ES 250, ES 300h, ES 350, GX 550, IS 300, IS 350, IS 500,
LC 500, LC 500c, LC 500h, LS 500, LS 500h, LX 600, NX 250, NX 350, NX 450h+, RC 300,
RC 350, RC F, RX 350, RX 350h, RX 500h, RZ 300e, RZ 450e, TX 350, TX 500h, TX 550h+, and
2025 model year LX 700h, RX 450h+, and UX 300h vehicles.
The Introduction, Parts Information, Required Tools & Equipment, and Air Conditioning Leak
Detection Dye and Injection Tool Use sections have been updated.
Any previous printed versions of this bulletin should be discarded.
Introduction
The air conditioning dye injection tool kit has been developed to aid in identifying the location of air
conditioning refrigerant leaks. Follow the procedures outlined in this Service Bulletin to aid in
locating, inspecting, and repairing refrigerant leaks.
© 2025 Lexus, a division of Toyota Motor Sales, USA
L-SB-0043-23
Rev1
August 21, 2023
Page 4 of 25
Air Conditioning Leak Detection Dye and O-ring Joint Inspection
Table of Contents
Warranty Information ...............................................................................................................5
For USA Market .................................................................................................................5
For Mexico Market .............................................................................................................5
Parts Information .....................................................................................................................5
For USA and Mexico Markets.............................................................................................5
Required Tools & Equipment ...................................................................................................6
Air Conditioning Leak Detection Dye and injection Tool Use....................................................7
HVAC O-ring Joint Inspections .............................................................................................. 13
Inspect the Pipe Fitting Areas of the Expansion Valve and Evaporator............................. 13
Inspect the Condenser and Pipe Fitting Area ................................................................... 17
Inspect the Compressor and Pipe Fitting Area ................................................................. 19
Inspect Other Joint Areas ................................................................................................. 21
Judgement Criteria ................................................................................................................ 23
O-ring Abnormalities......................................................................................................... 23
Sealing Surface Abnormalities (O-ring Attachment Area) ................................................. 24
Sealing Surface Abnormalities (Part Joint Area) ............................................................... 25
© 2025 Lexus, a division of Toyota Motor Sales, USA
L-SB-0043-23
Rev1
August 21, 2023
Page 5 of 25
Air Conditioning Leak Detection Dye and O-ring Joint Inspection
Warranty Information
For USA Market
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
N/A
Not Applicable to Warranty
–
–
–
–
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
N/A
Not Applicable to Warranty
–
–
–
–
For Mexico Market
Parts Information
For USA and Mexico Markets
PART NUMBER
PART NAME
QTY
00289-DYE11*
ND-11 A/C Dye Cartridges
1
00289-DYE12*
ND-12 A/C Dye Cartridges
1
*The dye part numbers are for Denso air conditioning systems ONLY.
NOTE
A/C dye cartridges are available through ZEP Products. The dye can be ordered through the LCMC
(Lexus Complete Maintenance Care) Program website via Dealer Daily.
Each part number contains two dye cartridges.
© 2025 Lexus, a division of Toyota Motor Sales, USA
L-SB-0043-23
Rev1
August 21, 2023
Page 6 of 25
Air Conditioning Leak Detection Dye and O-ring Joint Inspection
Required Tools & Equipment
The table below shows a list of the components included in the air conditioning dye injection tool kit
if ANY of the components requires replacement.
Table 1.
SPECIAL SERVICE TOOL (SST)
TOOL KIT
DYE TYPE
REFRIGERANT TYPE /
DESCRIPTION
SUB-PART
NUMBERS
R-134a / Brass Coupler*
09870-10010-Y
09870-20010-Y
R-134a / Brass Coupler*
09870-10010-B
09870-20010-B
Injector Handle*
09870-TP9845
Ultraviolet (UV) Flashlight*
09870-TPOPUVP
Flashlight Charger*
09870-0TP14
GLO-AWAY + Dye Cleaner*
09870-0TP19
Yellow Glasses*
09870-TP9940
Case*
09870-CASE
ND-11
(00289-DYE11)
ND-12
(00289-DYE12)
09870DYEKIT*
–
*Essential SST.
NOTE
Replacement components may be ordered by calling Approved Dealer Equipment (ADE) at
1-800-368-6787 (USA) or 01-55-50103041 (Mexico).
© 2025 Lexus, a division of Toyota Motor Sales, USA
IMAGE
L-SB-0043-23
Rev1
August 21, 2023
Page 7 of 25
Air Conditioning Leak Detection Dye and O-ring Joint Inspection
Required Tools & Equipment (continued)
REQUIRED TOOLS & MATERIAL
QTY
1
1
Air Conditioning Leak Detection Dye and Injection Tool Use
CAUTION
Do NOT look directly into the UV flashlight and ALWAYS wear UV protection glasses.
Wear safety glasses when connecting/disconnecting the dye injection tool from the air
conditioning service port.
Do NOT operate the air conditioning system while the dye injection tool is connected to air
conditioning system.
Do NOT connect the dye injection tool to a system that is evacuated.
The air conditioning system MUST contain enough refrigerant to operate the compressor and
circulate the dye to find leaks.
Do NOT mix ND-11 and ND-12 dyes. ALWAYS use the dye cartridge with the designated
injector tool brass coupler.
After use, store the injector tool and dye cartridges in a cool place, away
from sunlight.
Dispose of ANY dye in accordance with all local, state, and federal regulations.
NOTE
Two dye cartridges are required per vehicle service. The first cartridge will be completely purged through
the brass coupler to ensure there are NO contaminants such as moisture, air, etc. The second cartridge
will be injected into the air conditioning system to inspect for leaks.
1. The air conditioning dye injection tool kit includes four brass couplers to accommodate
vehicles for the types of compressor oils and refrigerants, refer to the Required Tools &
Equipment section for details:
ND-11 with R-134a compressor oil; electric compressors (09870-10010-Y)
ND-11 with R-1234yf compressor oil; electric compressors (09870-20010-Y)
ND-12 with R-134a compressor oil; belt driven compressors (09870-10010-B)
ND-12 with R-1234yf compressor oil; belt driven compressors (09870-20010-B)
NOTE
ND-12 compressor oil is compatible with ND-8 oil systems.
ND-8 compressor oil is NOT compatible with ND-12 oil systems.
© 2025 Lexus, a division of Toyota Motor Sales, USA
L-SB-0043-23
Rev1
August 21, 2023
Page 8 of 25
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