NHTSA ID Number: 10153252
Manufacturer Communication Number: T-SB-0016-19
TSB/Document Date: 2019-02-19
Summary
TSB: Some 2014 ? 2018 model year Corolla and 2017 ? 2018 model year iM vehicles equipped with the K313 Continuously Variable Transaxle (CVT) may exhibit a high-pitched hiss or whine noise after the vehicle has reached normal operating temperature. This condition may be caused by the valve body plate inside the CVT assembly. Follow the Repair Procedure in this bulletin to address this condition.
NOTICE
Remove the connector as shown
to avoid breakage.
(3) Remove the male connector.
2
6
1
Front of Vehicle
2
Needle-nose Plier
3
Claw Portions
4
Male Connector Tab
5
Male Connector Claw
6
Fem ale Connector Lock
Figure 10. Connector Removal
1
c
1
© 2019 Toyota
Motor Sales, USA
Front of Vehicle
4
T-SB-0016-19
January 25, 2019
Page 9 of 20
CVT Hiss Noise Valve Body Replacement
Repair Procedure (continued)
Valve Body Removal (continued)
8. Remove the bolt and oil temperature
sensor clamp.
Figure 11. Temperature Sensor Location
9. Remove the oil temperature sensor.
1
c
NOTE
Additional CVT fluid will flow out during oil
temperature sensor removal.
3
10. Remove the O-ring from the oil
temperature sensor.
2
1
Front of Vehicle
2
Oil Tem perature Sensor Clamp
3
Tem perature Sensor Bracket Bolt
Figure 12. O-Ring Removal
© 2019 Toyota Motor Sales, USA
T-SB-0016-19
January 25, 2019
Page 10 of 20
CVT Hiss Noise Valve Body Replacement
Repair Procedure (continued)
Valve Body Removal (continued)
11. Unscrew the 13 bolts and remove the
transmission valve body assembly from the
transmission case.
Figure 13.
A
1
Bolt A Length: 20 mm (2)
B
Bolt B Length: 35 mm (7)
B
Bolt C Length: 45 mm (4)
B
C
C
B
2
C
3
B
NOTE
B
The fluid may flow out for a few minutes
AFTER removing the transmission
valve body.
C
A
The transmission valve body weighs
approximately 4.6 kg.
12. Remove the CVT case gasket from the
transmission case.
1
Front of Vehicle
2
20 m m Bolt
3
35 m m Bolt
4
45 m m Bolt
Figure 14. CVT Case Gasket
NOTICE
Continue to Valve Body Installation
IMMEDIATELY and without ANY
interruption to avoid contamination.
© 2019 Toyota Motor Sales, USA
B
4
T-SB-0016-19
January 25, 2019
Page 11 of 20
CVT Hiss Noise Valve Body Replacement
Repair Procedure (continued)
Valve Body Installation
1. Apply a small amount of Toyota Genuine
MP Grease No. 2 (or equivalent) to the
NEW CVT case gasket.
Figure 15. Gasket Grease Application
1
c
2
1
Front of Vehicle
2
Grease Application Location
2. Install the gasket to the transmission case.
NOTE
The CVT case gasket is nondirectional.
NOTICE
Make sure the CVT case gasket is properly installed to the transmission case to prevent it
from falling off.
© 2019 Toyota Motor Sales, USA
T-SB-0016-19
January 25, 2019
Page 12 of 20
CVT Hiss Noise Valve Body Replacement
Repair Procedure (continued)
Valve Body Installation (continued)
3. Remove the manual valve as shown in Figure 17.
NOTICE
Carefully fit the NEW transmission valve body assembly into the transmission case.
Make sure not to damage the top of the sub strainers positioned at the back of the
transmission body assembly.
Hold the NEW transmission valve body assembly horizontally to prevent the manual valve
from falling off.
Figure 16. Valve Body Sub Strainer
1
Figure 17. Manual Valve Position
2
3
1
1
Front View
2
Back View
3
Sub Strainer
1
4. Match the position of the holes of the NEW
transmission valve body assembly and
hold the valve body assembly horizontally.
Manual Valve
Figure 18. Valve Body Installation
1
c
5. Make sure the projection of the manual
valve lever sub-assembly and the groove
of the manual valve are matching
as shown.
2
NOTE
3
If the projection does NOT match the groove,
relocate the manual valve.
6. Push to install the NEW transmission valve
body assembly to the transmission case
and hold it in place.
1
Front of Vehicle
2
Manual Valve
3
Projection of Manual Lever Sub-Assembly
© 2019 Toyota Motor Sales, USA
T-SB-0016-19
January 25, 2019
Page 13 of 20
CVT Hiss Noise Valve Body Replacement
Repair Procedure (continued)
Valve Body Installation (continued)
7. Holding the transmission valve body
assembly, install the two bolts as shown.
Bolt B Length: 35 mm (2)
Figure 19. Valve Body Installation
B
2
B
1
NOTE
Make sure to begin torqueing from the two
bolts shown as they will be the installation
position standard.
B
8. Temporarily tighten the bolts manually until
they sit properly on the transmission valve
body assembly.
9. Temporarily tighten the remaining 11 bolts
manually until they sit properly.
Bolt A Length: 20 mm (2)
Bolt B Length: 35 mm (5)
Bolt C Length: 45 mm (4)
1
Front of Vehicle
2
35 m m Bolt
Figure 20. Valve Body Installation
A
C
1
B
C
B
A
B
C
B
2
3
B
B
C
A
1
Front of Vehicle
2
20 m m Bolt
3
35 m m Bolt
4
45 m m Bolt
© 2019 Toyota Motor Sales, USA
C
4
T-SB-0016-19
January 25, 2019
CVT Hiss Noise Valve Body Replacement
Repair Procedure (continued)
Valve Body Installation (continued)
10. Tighten the two bolts.
Torque: 10.8N*m (110kgf*cm, 8ft*lbf)
Figure 21. Valve Body Installation
NOTE
1
Every time a bolt is tightened, clean the bolt
head and put a yellow paint mark on it.
1
11. Evenly tighten the other 11 bolts.
Torque: 10.8N*m (110 kgf*cm,8 ft.lbf)
Front of Vehicle
Figure 22. Valve Body Installation
NOTE
- 💯【Conta.ct us for Support Directly】If you met any...
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
- 【TURN OFF CEL】 This AL319 car scanner diagnostic tool...
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with...
- 【FOR END USER & DIYERS】 This error code reader AL319 is...
- 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check...
- 【HIGH-QUALITY SERVICES】 12 months war.ranty from the...
Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API
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)
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: T-SB-0016-19
Replacement Service Bulletin Number:
MFR Communication Date: 2019-01-25
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA
Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations - 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
Last update on 2026-06-30 / Affiliate links / Images from Amazon Product Advertising API
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.