Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000028HU8 |
Model Year Start: 2023 |
Model: Corolla Hatchback |
Prod Date Range: [11/2022 -
] |
Title: K120 / K121 (CVT): K120 VALVE BODY ASSEMBLY: REMOVAL; 2023 - 2025 MY Corolla Corolla Hatchback [11/2022 - ] |
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed, installed, or replaced during transmission valve body assembly removal/installation are shown below.
Necessary Procedure After Parts Removed/Installed/Replaced
Replacement Part or Procedure
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Necessary Procedure
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Effect/Inoperative when not Performed
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Link
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Replacement of CVT fluid
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ATF thermal degradation estimate reset
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The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly
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Replacement of transmission valve body assembly
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Reset transaxle compensation code
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Perform reset memory
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CVT oil pressure calibration
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Perform road test to allow TCM to learn
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Large shift shock
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Deterioration of fuel efficiency
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for Initialization
for Registration
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HINT:
Shift shock may increase after replacing the transmission valve body assembly. In this case, shift shock will reduce as the vehicle is driven.
PROCEDURE
1. REMOVE TRANSAXLE SIDE COVER SUB-ASSEMBLY
Click here
2. REMOVE TRANSMISSION VALVE BODY ASSEMBLY
(a) Disengage the clamp to disconnect the transmission wire from the solenoid lock plate.
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(b) Disconnect the 6 solenoid valve connectors.
(c) Remove the bolt and temperature sensor clamp from the transmission valve body assembly.
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(d) Disconnect the temperature sensor from the transmission valve body assembly.
(e) Remove the O-ring from the temperature sensor.
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(f) Remove the 11 bolts and transmission valve body assembly from the transaxle case sub-assembly.
NOTICE:
Make sure the manual valve does not fall out when removing the transmission valve body assembly, as the manual valve is not secured to the transmission valve body assembly.
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(g) Remove the front oil pump cover gasket from the transaxle case sub-assembly.
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(h) Type A:
(1) Remove the 4 transaxle case gaskets from the transaxle case sub-assembly.
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(i) Type B:
(1) Remove the 3 transaxle case gaskets from the transaxle case sub-assembly.
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