Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001ARAS
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 -           ]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: ON-VEHICLE INSPECTION; 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]

ON-VEHICLE INSPECTION

CAUTION / NOTICE / HINT

CAUTION:

Be sure to correctly follow the removal and installation procedures for the airbag ECU assembly.

PROCEDURE

1. INSPECT AIRBAG ECU ASSEMBLY (for Vehicle not Involved in Collision)

(a) Perform a diagnostic system check.

for Gasoline Model: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

for HV Model: Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for HV Model): DTC CHECK / CLEAR

2. INSPECT AIRBAG ECU ASSEMBLY (for Vehicle Involved in Collision and Airbag not Deployed)

(a) Perform a diagnostic system check.

for Gasoline Model: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

for HV Model: Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for HV Model): DTC CHECK / CLEAR

(b) Visually check for defects with the airbag ECU assembly installed to the vehicle.

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 connectors
  • Peeling of the label

OK:

No defects are found.

If any defects are found, replace the airbag ECU assembly with a new one.

3. INSPECT AIRBAG ECU ASSEMBLY (for Vehicle Involved in Collision and Airbag is Deployed)

(a) Replace the airbag ECU assembly.

HINT:

The airbag ECU assembly should be replaced after any of the SRS parts has deployed, as it has been subjected to an impact.