Installation [11/2018 - 08/2020]: Procedure

INSTALL AIRBAG ECU ASSEMBLY

Check that the ignition switch is off.

Check that the cable is disconnected from the negative (-) auxiliary battery terminal.

WARNING:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If this procedure is performed without disconnecting the negative (-) auxiliary battery terminal, the airbag may deploy even if an impact is applied only to the airbag ECU assembly. Therefore, make sure that the negative (-) auxiliary battery terminal is disconnected before performing this procedure.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Install the airbag ECU assembly with the 3 bolts.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Torque: 17.5 N*m (178 kgf*cm, 13 ft.*lbf)

NOTE:

If the airbag ECU assembly has been dropped, or there are any cracks, dents or other defects in the case or connector, replace the airbag ECU assembly with a new one.
When installing the airbag ECU assembly, be careful that the SRS wiring does not interfere with or is not pinched between other parts.
When the ignition switch is first turned to ON after the airbag ECU assembly has been replaced, make sure that no one is in the vehicle.

Connect the 3 connectors and push in the lock lever to lock the connector.

NOTE:

When connecting any airbag connector, take care not to damage the airbag wire harness.

Push in

Check that there is no looseness in the installation parts of the airbag ECU assembly.

INSTALL NO. 1 CONSOLE BOX DUCT
Refer to PROCEDURE - Step 23
INSTALL CONSOLE BOX ASSEMBLY
Refer to INSTALLATION [11/2018 - 12/2021]
CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL
- for A25A-FKS:
  Refer to PROCEDURE - Step 2
- for A25A-FXS:
  Refer to PROCEDURE - Step 2
NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Refer to INITIALIZATION [11/2018 - 02/2019] , or refer to INITIALIZATION [02/2019 - 10/2019] , or refer to INITIALIZATION [10/2019 - 06/2020] , or refer to INITIALIZATION [06/2020 - 08/2020]
INSTALL BATTERY HOLE COVER (for HV Model)
Refer to PROCEDURE - Step 3
INSTALL REAR NO. 2 FLOOR BOARD (for HV Model)
Refer to PROCEDURE - Step 4
INSTALL DECK BOARD ASSEMBLY (for HV Model)
Refer to PROCEDURE - Step 5
PERFORM DIAGNOSTIC SYSTEM CHECK
- w/ Occupant Classification System:
  Refer to DTC CHECK / CLEAR [11/2018 - 08/2020]
- w/o Occupant Classification System:
  Refer to DTC CHECK / CLEAR [11/2018 - 08/2020]
CHECK SRS WARNING LIGHT
- w/ Occupant Classification System:
  Refer to OPERATION CHECK [11/2018 - 02/2019] , or refer to OPERATION CHECK [02/2019 - 08/2020]
- w/o Occupant Classification System:
  Refer to OPERATION CHECK [11/2018 - 08/2020]
PERFORM SYSTEM INITIALIZATION AND CALIBRATION
Refer to CAUTION / NOTICE / HINT , or refer to CAUTION / NOTICE / HINT , or refer to REMOVAL [10/2019 - 08/2020]