Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001BNVM
Model Year Start: 2019 Model: GR Corolla Prod Date Range: [06/2018 - 01/2019]
Title: SEAT: SEAT HEATER SYSTEM: OPERATION CHECK; 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 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 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]; SEAT: FRONT SEAT CUSHION HEATER (for Manual Seat): REMOVAL

for Power Seat : Click here 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]; SEAT: FRONT SEAT CUSHION HEATER (for Power Seat): REMOVAL

(b) Remove the front seatback heater assembly LH.

for Manual Seat : Click here 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]; SEAT: FRONT SEATBACK HEATER (for Manual Seat): REMOVAL

for Power Seat : Click here 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]; SEAT: FRONT SEATBACK HEATER (for Power Seat): REMOVAL

(c) Connect the B front seat cushion heater assembly LH connector and F front seatback heater assembly LH connector.

*a

Component without harness connected

(Front Seat Cushion Heater Assembly LH)

*b

Component without harness connected

(Front Seatback Heater Assembly LH)

(d) Apply 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 battery from the front seat heater immediately after this inspection is completed.

OK:

Battery Connection

Specified Condition

Battery positive (+) → Terminal q1-1
  • 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)

Battery negative (-) → Terminal q1-2 and q1-3

CHECK THERMOSTAT IN FRONT SEAT CUSHION HEATER ASSEMBLY RH

(a) Remove the front seat cushion heater assembly RH.

Click here 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]; SEAT: FRONT SEAT CUSHION HEATER (for Manual Seat): REMOVAL

(b) Remove the front seatback heater assembly RH.

Click here 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]; SEAT: FRONT SEATBACK HEATER (for Manual Seat): REMOVAL

(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 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 battery from the front seat heater immediately after this inspection is completed.

OK:

Battery Connection

Specified Condition

Battery positive (+) → Terminal O20-6
  • 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)

Battery negative (-) → Terminal O20-7 and O20-5