T-SB-0150-16

October 20, 2016
T-SB-0150-16
CVT P2757 Valve Body Replacement
Service
Category
Drivetrain
Section
CVT
Market USA
Applicability
YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2014 - 2017
Corolla
Transmission(s): CVT
Introduction
Some 2014 – 2017 model year CVT Corolla vehicles may exhibit a MIL “ON” condition with
Diagnostic Trouble Code (DTC) P2757 (Torque Converter Clutch Pressure Control Solenoid
Performance [Shift Solenoid Valve SL]). Follow the Repair Procedure below to address
this condition.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
TC1602
R & R Transmission Valve Body Assembly
3.1
35410-12871
8A
99
APPLICABLE WARRANTY
This repair is covered under the Toyota Powertrain Warranty. This warranty is in effect for
60 months or 60,000 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.
© 2016 Toyota Motor Sales, USA
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CVT P2757 Valve Body Replacement
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
Techstream 2.0*
PART NUMBER
QTY
TS2UNIT
Techstream Lite
ADE
Techstream Lite (Green Cable)
TSLITEPDLR01
1
TSLP2DLR01
* Essential SST.
NOTE
Only ONE of the Techstream units listed above is required.
Software version 11.20.019 or later is required.
Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
Parts Information
PART NUMBER
PART NAME
QTY
35410-12871
Body Assy, Transmission Valve
1
35168-12091
Gasket, Transaxle Oil Pan
1
35145-07010
Gasket, Transaxle Case
1
90301-22019
Ring, O
90301-06004
08886-02505
ATF CVT FE (4 L can)
*Approximately 6 L of CVT fluid required for repair
© 2016 Toyota Motor Sales, USA
1
1
2*
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CVT P2757 Valve Body Replacement
Repair Procedure
NOTICE
TO PREVENT CONTAMINATION - DO NOT CLEAN CVT CASE
Perform work when it can be done without interruption.
Prepare a clean work environment before initiating work.
Be careful NOT to contaminate the CVT with debris and dust.
Do NOT use a shop cloth, a paper shop cloth, or cotton gloves.
Do NOT perform work in close proximity to others using air guns.
Removing the Valve Body
NOTE
Do NOT open the package of the NEW Transmission Valve Body Assembly until just
before replacement.
1. Remove the CVT fluid.
Refer to the Technical Information System (TIS), applicable model and model year
Repair Manual:

2014 / 2015 / 2016 / 2017 Corolla:
Drivetrain – CVT – “K313 CVT: Continuously Variable Transaxle Fluid: Replacement”
2. Remove the drain plug and gasket from the transaxle oil pan sub-assembly.
Figure 1. Transaxle Oil Pan Bolts
3. Unscrew 16 bolts and remove the
transaxle oil pan sub-assembly from the
transmission case.
4. Remove the Transaxle Oil Pan Gasket from
the transaxle oil pan sub-assembly.
NOTE
Wash away ANY metal contaminants and sludge deposited inside the transaxle oil pan
sub-assembly by using NEW CVT fluid and clean slightly as needed ensuring no
contamination occurs. (Do NOT use brake cleaner. Metal contaminants attached to magnet
are NOT required to be removed).
© 2016 Toyota Motor Sales, USA
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CVT P2757 Valve Body Replacement
Repair Procedure (Continued)
Removing Valve Body (Continued)
5. Unscrew 3 bolts and remove the oil strainer
from the Transmission Valve Body Assembly.
Figure 2. Oil Strainer
Bolt A: (2) 16mm in length
Bolt B: (1) 25mm in length
6. Remove the O-ring from the oil strainer.
A
16 mm Bolt
B
25 mm Bolt
Figure 3. Oil Strainer O-ring
NOTE
Take care to ensure there is no
contamination on the oil strainer.
© 2016 Toyota Motor Sales, USA
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CVT P2757 Valve Body Replacement
Repair Procedure (Continued)
Removing Valve Body (Continued)
7. Remove 1 bolt, oil temperature sensor clamp
and disconnect 5 connectors of transmission
harness from the Transmission Valve
Body Assembly.
Figure 4. Transmission Valve Body Assembly
NOTE
Do NOT remove respective solenoid valves
from the transmission valve body.
1
Oil Temperature Sensor
2
Oil Temperature Sensor Clamp
3
Oil Temperature Sensor Bolt
4
Transaxle Wire
5
Connectors
A. To remove the connector, apply the needle-nose plier end to the male connector tab.
Figure 5. Male Connector Tab
1
Needle Nose Pliers
3
Male Connector
2
Claw Portions
4
Female Connector
© 2016 Toyota Motor Sales, USA
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CVT P2757 Valve Body Replacement
Repair Procedure (Continued)
Removing Valve Body (Continued)
B. Gently hold the needle-nose plier and then push the male connector tab underneath.
Figure 6. Male Connector Cross Section
1
Male Connector
3
2
Female Connector Lock
C. Pull out the male connector
Male Connector Claw
Figure 7. Male Connector
8. Remove the O-ring from the oil temperature sensor.
© 2016 Toyota Motor Sales, USA
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CVT P2757 Valve Body Replacement
Repair Procedure (Continued)
Removing Valve Body (Continued)
9. Unscrew the 13 bolts and remove the
Transmission Valve Body Assembly from the
transmission case.
Figure 8. Transmission Valve Body
Bolt A: (2) 20mm in length
Bolt B: (7) 35mm in length
Bolt C: (4) 45mm in length
10. Remove B1 gasket from the
transmission case.
A
20 mm Bolt
B
35 mm Bolt
C
45 mm Bolt
Figure 9. B1 Gasket
NOTE
As soon as removal of the transmission
assembly is complete, install the
Transmission Valve Body Assembly without
ANY interruption to avoid contamination.
1
© 2016 Toyota Motor Sales, USA
B1 Gasket
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CVT P2757 Valve Body Replacement
Repair Procedure (Continued)
Installing Valve Body
1. Apply a small amount of Toyota genuine MP grease No.2 or CVT fluid to the NEW B1 gasket.
2. Install the gasket to the transmission case.
NOTICE
To prevent B1 gasket from falling off, ensure that it is properly
installed to the transmission case.
3. Install the Transmission Valve Body Assembly.
NOTICE
When installing the NEW Transmission Valve Body Assembly, fit it into the transmission case
carefully as to NOT damage the top of the sub strainers that are positioned at the back of the
Transmission Valve Body Assembly.
Figure 10. Front View
Figure 11. Back View
1
Sub Strainer
NOTICE
When installing the NEW Transmission Valve Body Assembly, hold the Transmission Valve
Body Assembly horizontally to prevent the manual valve from falling off.
© 2016 Toyota Motor Sales, USA
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CVT P2757 Valve Body Replacement
Repair Procedure (Continued)
Installing Valve Body (Continued)
A. Hold the Transmission Valve Body Assembly horizontally.
B. Match the projection of the manual valve lever sub-assembly and the ditch of the manual
valve as shown below.
C. Install the NEW Transmission Valve Body Assembly to the transmission case horizontally.
Figure 12.
1
Projection of Manual Lever Sub-Assembly
D. Hold the 2 bolts (35 mm in length) by
hand and install to position A.
E. Temporarily tighten the bolts manually
until they sit properly on the Transmission
Valve Body Assembly.
2
Manual Valve
Figure 13. Transmission Valve Body
A
© 2016 Toyota Motor Sales, USA
35 mm Bolt
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CVT P2757 Valve Body Replacement
Repair Procedure (Continued)
Installing Valve Body (Continued)
F. Temporarily tighten the remaining 11
bolts manually until they sit properly.
Figure 14. Transmission Valve Body
Bolt A: (2) 20mm in length
Bolt B: (7) 35mm in length
Bolt C: (4) 45mm in length
G. Tighten the 13 bolts.
Torque: 10.8 N*m (110 kgf*cm)
H. Apply Toyota genuine CVT fluid to NEW
O-ring and fit it to the oil
temperature sensor.
I. Fit 1 bolt, oil temperature sensor clamp
and 5 connectors.
Torque: 10.8 N*m (110 kgf*cm)
A
20 mm Bolt
B
35 mm Bolt
C
45 mm Bolt
J. Install the transmission harness to the transmission valve.
NOTE
Refer to the table below for respective connectors, solenoid connectors and wiring of the
transmission harness to ensure proper installation.
1
2
3
4
5
Solenoid Connector Color
Black
Black
Blue
Black
Black
Transaxle Harness
Connector Color
White
Green
Black
Green
White
Wiring Color
Purple
White/Black
Blue/Red
Light Blue
Yellow/Light
Green
© 2016 Toyota Motor Sales, USA
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CVT P2757 Valve Body Replacement
Repair Procedure (Continued)
Installing Valve Body (Continued)
3. Install the oil strainer.
A. Apply Toyota genuine CVT fluid to the
NEW O-ring and then fit it into the
oil strainer.
B. Tighten the 3 bolts evenly, temporarily
install the oil strainer to the Transmission
Valve Body Assembly.
Figure 15. Oil Strainer O-ring
Figure 16. Oil Strainer
Bolt A: (2) 16mm in length
Bolt B: (1) 25mm in length
NOTE
When installing the oil strainer to the
Transmission Valve Body Assembly,
prevent the O-ring from being caught
and apply pressure to the area below
the A bolt at the 12 o’clock position as
shown while keeping the strainer level.
Prevent the transmission wiring from
being caught between the Transmission
Valve Body Assembly and the
oil strainer.
C. Tighten the 3 bolts.
Apply Pressure Here
A
16 mm Bolt
B
25 mm Bolt
Torque: 10.8 N*m (110 kgf*cm)
© 2016 Toyota Motor Sales, USA
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CVT P2757 Valve Body Replacement
Repair Procedure (Continued)
Installing Valve Body (Continued)
4. Install the transaxle oil pan sub-assembly.
A. Install the NEW gasket.
NOTE
Clean the mating surfaces of the transaxle oil pan sub-assembly and the transmission
case with wipes to remove grease, moisture and/or dirt (Do NOT use brake cleaner).
B. Tighten the 16 bolts evenly, and
temporarily install the transaxle oil pan
sub-assembly to the transmission case.
Figure 17. Transaxle Oil Pan Bolts
NOTE
Prevent the transmission wiring from
being caught between the transmission
case and transaxle oil pan
sub-assembly by pushing wiring to
the center of transaxle.
C. Tighten the 16 bolts.
Torque: 7.8 N*m (80 kgf*cm)
D. Mount to overflow tube.
Torque: 1.7 N*m (17 kgf*cm)
E. Tighten the overflow plug with the gasket installed.
Torque: 40 N*m (408 kgf*cm)
5. Refill the CVT fluid.
Refer to TIS, applicable model and model year Repair Manual:

2014 / 2015 / 2016 / 2017 Corolla:
Drivetrain – CVT – “K313 CVT: Continuously Variable Transaxle Fluid: Replacement”
6. Clear the Diagnostic Trouble Codes.
7. Using TIS Techstream perform a Health Check and confirm no current DTCs are present.
NOTE
If current DTCs are present, diagnose per Repair Manual procedures.
8. Test drive the vehicle to confirm proper vehicle operation.
© 2016 Toyota Motor Sales, USA