- Front seat cushion heater temperature 30 to 50°C (86 to 122°F)
- Front seatback heater temperature 30 to 50°C (86 to 122°F)
| Last Modified: 08-22-2025 | 6.11:8.1.0 | Doc ID: RM100000001GOLJ |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [01/2019 - ] |
| Title: SEAT: SEAT HEATER SYSTEM: OPERATION CHECK; 2020 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - ] | ||
OPERATION CHECK
CHECK THERMOSTAT IN FRONT SEAT CUSHION HEATER ASSEMBLY LH
(a) Remove the front seat cushion heater assembly LH.
for Manual Seat : Click here
![2020 MY Corolla Corolla Hatchback Corolla HV [01/2019 - 03/2019]; SEAT: FRONT SEAT CUSHION HEATER (for Manual Seat): REMOVAL](/t3Portal/stylegraphics/info.gif)
for Power Seat : Click here
(b) Remove the front seatback heater assembly LH.
for Manual Seat : Click here
for Power Seat : Click here
(c) Connect the B front seat cushion heater assembly LH connector and F front seatback heater assembly LH connector.
|
*A |
for Manual Seat |
|
*B |
for Power Seat |
|
*a |
Component without harness connected (Front Seat Cushion Heater Assembly LH) |
|
*b |
Component without harness connected (Front Seatback Heater Assembly LH) |
(d) Apply auxiliary battery voltage and check the operation of the front seat heater according to the table below.
NOTICE:
To prevent the front seat heater from overheating, be sure to disconnect the auxiliary battery from the front seat heater immediately after this inspection is completed.
OK:
|
Auxiliary battery Connection |
Specified Condition |
|---|---|
|
Auxiliary battery positive (+) → Terminal O21-6*1 Auxiliary battery positive (+) → Terminal q1-1*2 |
|
|
Auxiliary battery negative (-) → Terminal O21-7 and O21-5*1 Auxiliary battery negative (-) → Terminal q1-2 and q1-3*2 |
- *1: for Manual Seat
- *2: for Power Seat
CHECK THERMOSTAT IN FRONT SEAT CUSHION HEATER ASSEMBLY RH
(a) Remove the front seat cushion heater assembly RH.
Click here
(b) Remove the front seatback heater assembly RH.
Click here
(c) Connect the C front seat cushion heater assembly RH connector and G front seatback heater assembly RH connector.
|
*a |
Component without harness connected (Front Seat Cushion Heater Assembly RH) |
|
*b |
Component without harness connected (Front Seatback Heater Assembly RH) |
(d) Apply auxiliary battery voltage and check the operation of the front seat heater according to the table below.
NOTICE:
To prevent the front seat heater from overheating, be sure to disconnect the auxiliary battery from the front seat heater immediately after this inspection is completed.
OK:
|
Auxiliary battery Connection |
Specified Condition |
|---|---|
|
Auxiliary battery positive (+) → Terminal O20-6 |
|
|
Auxiliary battery negative (-) → Terminal O20-7 and O20-5 |
CHECK THERMOSTAT IN REAR SEAT CUSHION HEATER LH (SEAT HEATER ASSEMBLY) (w/ Rear Seat Heater)
(a) Remove the rear seat cushion heater LH (seat heater assembly).
|
*a |
Component without harness connected (Rear Seat Cushion Heater LH (Seat Heater Assembly)) |
Click here
(b) Apply auxiliary battery voltage and check the operation of the rear seat heater as shown in the table below.
NOTICE:
To prevent the rear seat heater from overheating, be sure to disconnect the auxiliary battery from the rear seat heater immediately after this inspection is completed.
OK:
|
Auxiliary battery Connection |
Specified Condition |
|---|---|
|
Auxiliary battery positive (+) → Terminal O126-1 (B) |
Rear seat heater temperature 30 to 50°C (86 to 122°F) |
|
Auxiliary battery negative (-) → Terminal O126-2 (E) |
CHECK THERMOSTAT IN REAR SEAT CUSHION HEATER RH (SEAT HEATER ASSEMBLY) (w/ Rear Seat Heater)
(a) Remove the rear rear seat cushion heater RH (seat heater assembly).
|
*a |
Component without harness connected (Rear Seat Cushion Heater RH (Seat Heater Assembly)) |
Click here
(b) Apply auxiliary battery voltage and check the operation of the rear seat heater as shown in the table below.
NOTICE:
To prevent the rear seat heater from overheating, be sure to disconnect the auxiliary battery from the rear seat heater immediately after this inspection is completed.
OK:
|
Auxiliary battery Connection |
Specified Condition |
|---|---|
|
Auxiliary battery positive (+) → Terminal O125-1 (B) |
Rear seat heater temperature 30 to 50°C (86 to 122°F) |
|
Auxiliary battery negative (-) → Terminal O125-2 (E) |
|
|