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Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Automatic Transaxle System (K120 / K121) - Service Information (4 Of 5)) >> K120 Park / Neutral Position Switch >> Removal [09/2022 - 11/2022] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different variant/trim than selected.

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed, installed, or replaced during park/neutral position switch assembly 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 ECM Vehicle Identification Number (VIN) registration MIL comes on Refer to REGISTRATION [06/2018 - ]
for TMC Made 
  1. Update ECU security key
Vehicle Control History (RoB) are stored Refer to UPDATE ECU SECURITY KEY [09/2022 - ]
ECU communication ID registration (Immobiliser system) Engine start function Refer to REGISTRATION [09/2022 - 11/2022] for TMC Made
Refer to REGISTRATION [09/2022 - 11/2022] for TMMMS Made
  • Perform reset memory
  • CVT oil pressure calibration
  • Perform road test to allow TCM to learn
  • Large shift shock
  • Deterioration of fuel efficiency
Refer to INITIALIZATION [09/2022 - 11/2022] for Initialization
Refer to REGISTRATION [06/2018 - 09/2024] for Registration
Replacement of ECM*2 Code registration (Smart Key System (for Gasoline Model, Start Function))
  • Wireless Door Lock Control System (for Gasoline Model with Smart Key System)
  • Smart Key System (for Gasoline Model, Entry Function)
  • Smart Key System (for Gasoline Model, Start Function)
  • Steering lock function*3
Refer to REGISTRATION [09/2022 - 11/2022] for TMC Made
Refer to REGISTRATION [09/2022 - 11/2022] for TMMMS Made
Replacement of ECM*1 Code registration (Immobiliser system)
  • Engine start
  • Telematics System
Refer to REGISTRATION [09/2022 - 11/2022]

*1: w/o Smart Key System

*2: w/ Smart Key System

*3: w/ Steering Lock Function

HINT: 

When the cable is disconnected / reconnected to the battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

LEARNING COMPLETES WHEN VEHICLE IS DRIVEN

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Front Camera System (for TMC Made) Drive the vehicle straight ahead at 15 km/h (9 mph) or more for 1 second or more. Refer to INITIALIZATION [09/2022 - 11/2022]
Pre-collision System (for TMMMS Made) Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more. Refer to INITIALIZATION [09/2022 - 11/2022]
Lane Tracing Assist System (for TMMMS Made)
Lane Departure Alert System (for TMMMS Made)
LEARNING COMPLETES WHEN VEHICLE IS OPERATED NORMALLY

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Power Door Lock Control System
  • Back door opener*1
Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch. Refer to INITIALIZATION [09/2022 - 11/2022]

*1: for Hatchback