Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GX9I
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 09/2022]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION ECU: ON-VEHICLE INSPECTION; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]

ON-VEHICLE INSPECTION

CAUTION / NOTICE / HINT

CAUTION:

Be sure to correctly follow the removal and installation procedures for the occupant detection ECU.

PROCEDURE

1. INSPECT OCCUPANT DETECTION ECU (for Vehicle not Involved in Collision)

(a) Perform a diagnostic system check.

for HV Model: Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for HV Model): DTC CHECK / CLEAR

for Gasoline Model: Click here 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

2. INSPECT OCCUPANT DETECTION ECU (for Vehicle Involved in Collision)

(a) Perform a diagnostic system check.

for HV Model: Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for HV Model): DTC CHECK / CLEAR

for Gasoline Model: Click here 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

(b) Visually check for defects with the occupant detection ECU.

HINT:

The defects are as follows:

  • Cracks in the ECU housing
  • Dents in the ECU housing
  • Chips in the ECU housing
  • Cracks or other damage to the connector
  • Damage to the serial number

OK:

No defects are found.

If any defects are found, replace the occupant detection ECU with a new one.