Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJDA
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 -           ]
Title: POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL; 2016 - 2020 MY Sienna [12/2015 -        ]

REMOVAL

PROCEDURE

1. REMOVE KNEE AIRBAG ASSEMBLY

(See page 2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: KNEE AIRBAG ASSEMBLY: REMOVAL )

2. REMOVE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

(a) Disconnect the connectors on the front side.

(b) Remove the 2 nuts.

(c) Disengage the 4 guides and remove the junction connector.

(d) Disconnect the connectors on the back side, and then remove the instrument panel junction block.

3. REMOVE MAIN BODY ECU

(a) Release the lock on the junction block side.

(b) While pressing the lock on the junction block side, insert a screwdriver with its tip wrapped in protective tape between the main body ECU and the junction block.

Text in Illustration

*1

Protective Tape

NOTICE:

Use a thin-blade screwdriver with a diameter of 5.0 to 6.3 mm (0.197 to 0.248 in.), and with a length of 90 mm or more.

(c) Do not pry the inserted screwdriver. Lift up the main body ECU to the point where the lock releases.

(d) Remove the main body ECU by pulling it out from the junction block.