SEAT: FRONT SEAT CUSHION HEATER (for Manual Seat): REMOVAL; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM100000001HYEJ
Model Year Start: 2020	Model: GR Corolla	Prod Date Range: [03/2019 - 09/2022]
Title: SEAT: FRONT SEAT CUSHION HEATER (for Manual Seat): REMOVAL; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during front seat cushion heater assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced (for Gasoline Model)

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed
*: for Hatchback
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Lane Control System (for Gasoline Model)
		Pre-collision System (for Gasoline Model)
		Lighting System (w/ AFS)(EXT)
	Initialize back door lock*	Power Door Lock Control System (for Hatchback, Gasoline Model)
Occupant detection ECU Front passenger seat	Zero point calibration (Occupant Classification System)	Occupant Classification System Passenger airbag ON/OFF indicator Airbag System (Front passenger side) Seat Belt Warning System (Front passenger)

Necessary Procedures After Parts Removed/Installed/Replaced (for HV Model)

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Lane Control System (for HV Model)
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Pre-collision System (for HV Model)
Occupant detection ECU Front passenger seat	Zero point calibration (Occupant Classification System)	Occupant Classification System Passenger airbag ON/OFF indicator Airbag System (Front passenger side) Seat Belt Warning System (Front passenger)

CAUTION:

Wear protective gloves. Sharp areas on the parts may injure your hands.

NOTICE:

After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Navigation System and Audio and Visual System (for Gasoline Model))
After the power switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System (for HV Model))

HINT:

Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the ignition switch (for Gasoline Model) or power switch (for HV Model) off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

2. REMOVE FRONT SEAT ASSEMBLY

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3. DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER

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4. REMOVE VERTICAL ADJUSTING HANDLE LH (for Driver Side)

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5. REMOVE RECLINING HINGE COVER

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6. REMOVE RECLINING ADJUSTER RELEASE HANDLE

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7. REMOVE LH SEAT SEAT ADJUSTER COVER CAP (for Driver Side)

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8. REMOVE FRONT SEAT CUSHION SHIELD (for Driver Side)

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9. REMOVE FRONT SEAT INNER CUSHION SHIELD (for Driver Side)

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10. REMOVE FRONT SEAT CUSHION SHIELD (for Front Passenger Side)

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11. REMOVE FRONT SEAT INNER CUSHION SHIELD (for Front Passenger Side)

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12. REMOVE SEPARATE TYPE FRONT SEATBACK ASSEMBLY

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13. REMOVE SEPARATE TYPE FRONT SEAT CUSHION COVER WITH PAD

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14. REMOVE SEPARATE TYPE FRONT SEAT CUSHION COVER

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15. REMOVE FRONT SEAT CUSHION HEATER ASSEMBLY

(a) for Standard Seat Type (for TMMMS Made):

(1) Remove the 14 tag pins and front seat cushion heater assembly from the separate type front seat cushion cover.

(b) for Standard Seat Type (except TMMMS Made):

(1) Remove the 19 tag pins and front seat cushion heater assembly from the separate type front seat cushion cover. (for Cushion Heater Type A)

(2) Remove the 25 tag pins and front seat cushion heater assembly from the separate type front seat cushion cover. (for Cushion Heater Type B)

(1) Remove the 12 tag pins and front seat cushion heater assembly from the separate type front seat cushion cover.

(d) for Sporty Seat Type (except TMMMS Made):

(1) Remove the 19 tag pins and front seat cushion heater assembly from the separate type front seat cushion cover. (for Cushion Heater Type A)

(2) Remove the 25 tag pins and front seat cushion heater assembly from the separate type front seat cushion cover. (for Cushion Heater Type B)

(e) for Sports Seat Type:

(1) Remove the 14 tag pins and front seat cushion heater assembly from the separate type front seat cushion cover. (for Cushion Heater Type A)

(2) Remove the 18 tag pins and front seat cushion heater assembly from the separate type front seat cushion cover. (for Cushion Heater Type B)