Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VIQV
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 -           ]
Title: MF1A (TRANSFER / 4WD / AWD): 4WD CONTROL ECU: REMOVAL; 2016 - 2020 MY Sienna [12/2015 -        ]

REMOVAL

PROCEDURE

1. REMOVE MAIN BODY ECU

(See page 2016 - 2020 MY Sienna [12/2015 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL )

2. REMOVE 4WD ECU ASSEMBLY

(a) Disconnect the 4WD ECU connector.

(b) Remove the bolt and 4WD ECU.