Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000Z9JL
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: 2GR-FKS (ENGINE CONTROL): ECM: REMOVAL; 2017 - 2020 MY Sienna [08/2016 -        ]

REMOVAL

PROCEDURE

1. PRECAUTION

NOTICE:

  • Perform Vehicle Identification Number (VIN) registration when replacing the ECM.

    Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE CONTROL): SFI SYSTEM: REGISTRATION

  • If the ECM has been struck or dropped, replace it.
  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Click here 2017 - 2020 MY Sienna [08/2016 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

  • Before replacing the ECM, refer to Registration.
    • w/ Smart key system:

      Click here 2017 - 2020 MY Sienna [08/2016 -        ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/ Smart Key System): REGISTRATION

    • w/o Smart key system:

      Click here 2016 - 2020 MY Sienna [12/2015 -        ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/o Smart Key System): REGISTRATION

2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Click here 2017 MY Sienna [08/2016 - 11/2017]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2018 - 2020 MY Sienna [11/2017 -        ]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

3. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; WIPER / WASHER: FRONT WIPER MOTOR: REMOVAL

4. REMOVE COWL PANEL SUB-ASSEMBLY

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; FRONT SUSPENSION: FRONT SHOCK ABSORBER: REMOVAL+

5. REMOVE AIR CLEANER INLET ASSEMBLY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

6. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE CONTROL): THROTTLE BODY: REMOVAL+

7. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

8. REMOVE AIR CLEANER CASE SUB-ASSEMBLY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

9. REMOVE ECM

(a) Raise the 2 levers while pushing the locks on the levers, and disconnect the 2 ECM connectors.

NOTICE:

After disconnecting the ECM connectors, make sure that dirt, water or other foreign matter does not contact the connecting parts of the ECM connectors.

(b) Remove the 4 bolts and ECM from the vehicle.

NOTICE:

If the ECM has been struck or dropped, replace it.

10. REMOVE ECM BRACKET

(a) Remove the 2 bolts and ECM bracket from the ECM.