NHTSA ID Number: 10220173
Manufacturer Communication Number: TSB005222
TSB/Document Date: 2022-09-15
Summary
TSB: Some 2021 ? 2022 model year Tacoma vehicles may exhibit a condition in which the air conditioning system has poor cooling performance sometimes accompanied by refrigerant vapor visible from under the vehicle. This condition is caused by the pressure relief valve opening and purging refrigerant at a pressure below specification. Follow the Repair Procedure in this bulletin to address this condition
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
- ENGINEERED R134a REPLACEMENT - HIGH-EFFICIENCY FORMULATION...
- PREMIUM HIGH-PURITY SPECIFICATION (99.5%+) - Manufactured to...
- SIGNIFICANTLY LOWER CHARGE WEIGHT REQUIRED- Hydrocarbon...
- DESIGNED FOR CONSISTENT, EFFICIENT COOLING PERFORMANCE...
- PROFESSIONAL-STYLE SELF-SEALING VALVE- 6 oz net cans feature...
This product presentation was made with AAWP plugin.
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: TSB005222
Replacement Service Bulletin Number:
MFR Communication Date: 2022-05-26
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
T-SB-0052-22
May 26, 2022
Poor Air Conditioning Cooling Performance Compressor Pressure Relief Valve Leak
Service
Category
Vehicle Interior
Section
Heating/Air Conditioning
Market USA
Applicability
YEAR(S)
MODEL(S)
2021 - 2022
Tacoma
ADDITIONAL INFORMATION
Introduction
Some 2021 – 2022 model year Tacoma vehicles may exhibit a condition in which the air
conditioning system has poor cooling performance sometimes accompanied by refrigerant vapor
visible from under the vehicle. This condition is caused by the pressure relief valve opening and
purging refrigerant at a pressure below specification. Follow the Repair Procedure in this bulletin to
address this condition.
© 2021 Toyota
Motor Sales, USA
Page 1 of 6
T-SB-0052-22
May 26, 2022
Page 2 of 6
Poor Air Conditioning Cooling Performance - Compressor Pressure Relief
Valve Leak
Production Change Information
This bulletin applies to vehicles produced BEFORE the Production Change Effective VINs
shown below.
MODEL
PLANT
ENGINE
DRIVETRAIN
PRODUCTION CHANGE EFFECTIVE VIN
3TYRZ5CN#NX013091
2WD
3TYEZ5CN#NX013091
3TYAZ5CN#NX013091
3TYBZ5DN#NX001196
2GR-FKS
3TYSZ5AN#NX053690
3TYCZ5AN#NX053690
TMMGT
4WD
3TYGZ5AN#NX053690
3TYHZ5BN#NX005051
3TYDZ5BN#NX005051
Tacoma
2TR-FE
2WD
4WD
3TYRX5GN#NX034750
3TYAX5GN#NX034750
3TYSX5EN#NX010349
3TMEZ5CN#NM169468
2WD
3TMAZ5CN#NM169468
3TMBZ5DN#NM0033575
TMMBC
2GR-FKS
3TMCZ5AN#NM473373
4WD
3TMGZ5AN#NM473373
3TMHZ5BN#NM125968
3TMDZ5BN#NM125968
© 2021 Toyota Motor Sales, USA
T-SB-0052-22
May 26, 2022
Page 3 of 6
Poor Air Conditioning Cooling Performance - Compressor Pressure Relief
Valve Leak
Warranty Information
OP CODE
DESCRIPTION
AC2046
R & R the Pressure Relief Valve
ENGINE
TIME
4 Cyl.
1.4
6 Cyl.
2.5
OFP
T1
T2
88379-04020
64
14
APPLICABLE WARRANTY
This repair is covered under the Toyota Basic Warranty. This warranty is in effect for
36 months or 36,000 miles, 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
QUANTITY
88379-04020
Valve, Pressure Relief
1
90210-A0002
90210-A0004
1
Required Tools & Equipment
REQUIRED TOOLS & MATERIAL
QUANTITY
Compressor Oil, PSD1 or Equivalent
–
Gas Leak Detector or UV Light
1
1
© 2021 Toyota Motor Sales, USA
T-SB-0052-22
May 26, 2022
Page 4 of 6
Poor Air Conditioning Cooling Performance - Compressor Pressure Relief
Valve Leak
Repair Procedure
1. Does the vehicle exhibit a condition in which the air conditioning system has poor cooling
performance sometimes accompanied by refrigerant vapor visible from under the vehicle?
YES — Continue to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
2. Is there evidence of leak detection dye at the pressure relief valve on the compressor?
YES — Continue to step 3.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
Figure 1. Leak Detection Dye Found on the Pressure Relief Valve
3. Recover the refrigerant from the air conditioning system.
Refer to TIS, applicable model and model year Repair Manual:
2021 – 2022 Tacoma:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Refrigerant (for HFO1234yf (R1234yf)): Replacement”
© 2021 Toyota Motor Sales, USA
T-SB-0052-22
May 26, 2022
Page 5 of 6
Poor Air Conditioning Cooling Performance - Compressor Pressure Relief
Valve Leak
Repair Procedure (continued)
4. Was the amount of refrigerant recovered less than the amount indicated below?
For vehicles with engine type 2TR-FE: 480 g.
For vehicles with engine type 2GR-FKS: 495 g.
YES — Continue to step 5.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
5. Remove the compressor from the vehicle.
Refer to TIS, applicable model and model year Repair Manual:
2021 – 2022 Tacoma:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Compressor: Removal”
6. Remove the pressure relief valve and O-ring.
7. Install the NEW pressure relief valve and O-ring.
A. Apply sufficient compressor oil (PSD1 or equivalent) to a NEW O-ring and fitting surface of
the pressure relief valve.
B. Install the NEW O-ring onto the pressure relief valve.
C. Install the pressure relief valve.
Torque: 8.0 N*m {82 kgf*cm, 71 in*lbf}
8. Reinstall the compressor onto the vehicle.
Refer to TIS, applicable model and model year Repair Manual:
2021 – 2022 Tacoma:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Compressor: Installation”
9. Charge the air conditioning system with refrigerant.
Refer to TIS, applicable model and model year Repair Manual:
2021 – 2022 Tacoma:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Refrigerant (for HFO1234yf(R1234yf)): Replacement”
NOTE
Amount of refrigerant used for vehicles with engine type 2TR-FE: 480 – 540 g.
Amount of refrigerant used for vehicles with engine type 2GR-FKS: 495 – 555 g.
© 2021 Toyota Motor Sales, USA
T-SB-0052-22
May 26, 2022
Page 6 of 6
Poor Air Conditioning Cooling Performance - Compressor Pressure Relief
Valve Leak
Repair Procedure (continued)
10. Warm the engine at 1,640 RPM or less for two minutes or more AFTER charging the air
conditioning system with refrigerant.
11. Inspect the air conditioning system for refrigerant leak using a gas leak detector or UV light.
NOTE
The air conditioning system has leak detection dye already from the factory.
12. Confirm the air conditioning system is cooling consistently.
© 2021 Toyota Motor Sales, USA
- OBD2 Bluetooth Scanner Lifetime Update: Ediag Elite offers revolutionary Advantage Lifetime Updates with unlimited access to the superior 15+ reset service, bidirectional testing and full system diagnostics.The Ediag Elite is an excellent Bluetooth OBD2 scanner diagnostic tool ideal for DIY's and private car owners.
- Bidirectional Test for Quickly Locating Problems: The Bidirectional Scan tool allows you to send commands directly from your smartphone to your vehicle for active testing. This feature helps to quickly narrow down problems such as air conditioning clutches, windows, doors, sunroofs, etc., reducing diagnostic time for mechanics and helping DIY users locate faults more easily. In addition, Ediag Elite provides fault analysis and repair guidance to help you solve problems efficiently.
- 15+ Maintenance Resets: The current version introduces 15+ popular special features: Oil Reset, Headlight Matching, Bleeding Reset, TPMS Reset, BMS Reset, Gear Box Relearn, Throttle Learning, Injector Coding, SAS Reset and more special functions in system diagnose menu. These functions make it easy for owners to carry out the necessary maintenance and servicing, ensuring that your vehicle stays in top condition, prolonging its service life and preventing common problems and breakdowns. Note: The Special function vary by model& year, Reach us check compatibility.
- Wide Compatibility CANFD & FCA
Autoauth: Compatible with GM, Ford, Toyota, Chrysler, Honda, Mazda, Nissan, Mitsubishi, Hyundai, KIA with standard OBD2 port from 1996 to newer. More car brands and features will be released gradually. Newest Ediag Elite scanner supports CANFD Protocol and FCA cars. Note: Coverage may vary on different vehicle by model& year ,Please contact us to confirm compatibility before purchase. - Perfect for Monitoring The Health of Your Vehicle: Ediag Elite is designed to make vehicle maintenance simple and efficient. With intelligent Auto VIN quick recognition, it is easy to connect to your car without the need for manual input. Real-time data is visualized in a variety of formats, including graphs, numeric, meter displays and clear 4-in-1 data charts, allowing you to effortlessly monitor real-time data. Data logging/reporting is available for playback and further analysis
- No Annual Fees & 2026 Upgraded CAN FD: Why pay $199/year or more for updates? The 2026 newest Kingbolen K7 obd2 scanner features have been upgraded to Lifetime Updates without subscription fees, saving you significant costs in the long run. K7 scan tool also adds the CAN FD protocol for the latest GM models (2019+), enabling faster data transfer, reducing the risk of undetected errors
- 2026 Newest Top-tier Car Scanner: Kingbolen K7 diagnostic scan tool is equipped with most capabilities for daily repair/maintenance: Wireless diagnosis via Bluetooth, Bidirectional Test, ECU Online/Offline Code, 31+ Resets, PMI for Ford, Lincoln, Mazda, Global version for 100+ brand vehicles and 17 languages, no area limit, FCA AutoAuth
- OE-Level Full Systems Scan Tool: K7 professional diagnostic scanner with Auto Vin can do one-click to scan ECUs on most of vehicles, like pcm, ecm, eps, bcm, tpms, sas, a/c system... to read/clear code, view live data, freeze frame, read ecu info. 4-in-1 data stream graphics can make data viewing more intuitive. Detailed diagnostic reports will help you easily master the car situation as it can be shared by bluetooth or email! Adding workshop information can help your customers to know more
- Bidirectional Test/Active Test & ECU Code: Stop guessing and start fixing. Bidirectional scan tool Kingbolen K7 can perform real active test that can send commands to the vehicle's ECU to drive the actuators to work, like window, rear mirrors, sunroof, door, solenoids, wipers, headlamp, etc, helping you quickly find out bad parts and pinpoint faulty issues. K7 bidirectional scanner will be a good choice to save money and time on car repairs when performing complex maintenance and repair
- 31 Reset Functions: Avoid expensive dealership visits for simple services. Experience tells us that just a small repair service may cost a lot of money. Kingbolen K7 is a professional diagnostic scanner with 31 common maintenance services like Oil /SAS/EPB/TPMS Reset, Battery Matching, ABS Bleeding, Injector Code, etc. It effectively handles most of the car reset and relearning jobs, perfect for experienced DIYers and mechanics. Note: Functions in the menu vary across vehicles. Kindly check the compatibility before purchase
- WHY S608 STANDS OUT:2026 Kingbolen S608 is the only scanner <200 bucks that offers powerful active tests on Engine, ABS, SRS, and Transmission systems. Offers 9 resets,Covers 110+ global brands with a 6.2'' larger touchscreen
- KINGBOLEN'S NEW BIDIRECTIONAL SCAN TOOL: As the 2026 upgraded version of S600, our Newest S608 obd2 scanner has the powerful Bi-directional Control on Engine, ABS, SRS, and Transmission systems. It can send commands to the ECUs of actuators for functional tests and work status checks, such as ABS, fuel injectors, adjusting throttle, coolant pumps, EVAP test, fuel trim reset, etc. No more Guesswork. Quickly identify problem components without teardown, get fuss-free results in seconds.
- 【9 HOT RESET SERVICES CAR SCANNER】Tired of costly mechanic trips for common resets? The Kingbolen S608 obd2 scanner lets you do it yourself, even for beginners—quickly and effortlessly! It offers 9 hot reset functions: Oil/EPB Reset, ABS Bleeding, SAS Calibration, DPF Regeneration, Injector Coding, BMS Matching, Throttle Adaptation, Gear Learning. Stop paying mechanics for 5-minute jobs. Save hundreds per year! 🚗*Function vary from vehicle models. reach us to check compatibility firstly!
- 【4 SYSTEM DIAGNOSTIC TOOL + FULL OBDII FUNCTIONS】Kingbolen S608 is an OBDII scanner and 4 systems diagnostic tool made for home mechanics, DIYers, and professionals. You can access Engine, ABS, SRS, Transmission fault codes, track live data in graphs, and onboard DTC library lookup to find the right troubleshooting procedure, and diagnose with full 10 OBD2 test modes to fix most of emission issues. Give your aging cars routine maintenance to avoid costly repairs, a breakdown, or even a crash.
- 【NEW CAN FD, FCA/RENAULT SGW, 140+ BRANDS】Kingbolen S608 scanner for car supports 140+ vehicle brands, 100,000+ models, 28 languages and can be used worldwide. S608 stays up-to-date with modern vehicles, allows secure access to 2017+ FCA cars and 2015+ Renault cars (📢*Need to purchase an AutoAuth/Renault account by yourself), and supports the latest CAN-FD protocol for 2019+ GM/Chrysler, enabling 2X faster data transfer and more precise diagnostics. 🚗*Check compatibility before purchase.
This product presentation was made with AAWP plugin.
Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API