Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: On-vehicle Inspection

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

for HV Model: Click here

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

for HV Model: Click here

(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.