Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001D0LE
Model Year Start: 2019 Model: Corolla Hatchback Prod Date Range: [06/2018 - 09/2022]
Title: K120 / K121 (CVT): REVOLUTION SENSOR (NC1 SENSOR): REMOVAL; 2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]

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 revolution sensor (NC1) removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replacement Part or Procedure

Necessary Procedure

Effect/Inoperative when not Performed

Link

Replacement of CVT fluid

ATF thermal degradation estimate reset

The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; K120 / K121 (CVT): K120 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: INITIALIZATION

Replacement of transmission valve body assembly
  • Reset transaxle compensation code
  • Perform reset memory
  • Deceleration sensor zero point calibration
  • CVT oil pressure calibration
  • Perform road test to allow TCM to learn
  • Large shift shock
  • Deterioration of fuel efficiency

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; K120 / K121 (CVT): K120 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: INITIALIZATION for Initialization

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; K120 / K121 (CVT): K120 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: REGISTRATION for Registration

PROCEDURE

1. REMOVE TRANSMISSION VALVE BODY ASSEMBLY

Click here 2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; K120 / K121 (CVT): K120 VALVE BODY ASSEMBLY: REMOVAL

2. REMOVE TRANSMISSION REVOLUTION SENSOR (NC1)

(a) Disconnect the transmission revolution sensor (NC1) connector.

(b) Remove the bolt and transmission revolution sensor (NC1) from the transaxle case sub-assembly.