Toyota Sienna Service Manual: Initialization

Toyota Sienna Service Manual / Engine hood / door / Back door closer system / Initialization

1. RESET

When the battery is reconnected: The back door is locked and therefore cannot be opened. Therefore, it is necessary to unlock the back door using the door control switch or transmitter switch.
Reset the power back door system: The power back door ECU records the fully open position and the fully closed position of the power back door in its memory and the power back door fully opens and closes based on this memory. The power back door cannot operate without this memory. In the case where the battery has been removed, manually close the back door fully to reset the power back door system. However, if the battery is removed / installed when the back door is fully open, the power back door operates normally, thus the resetting the system is unnecessary

PROBLEM SYMPTOMS TABLE

BACK DOOR CLOSER SYSTEM

Symptom	Suspected area
Back door closer does not operate	Back door lock assembly Power back door ECU Wire harness

How to proceed with troubleshooting

HINT: Troubleshoot in accordance with the procedures on the following pages 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 3 INSPECT COMMUNICATION FUNCTION OF L ...

Terminals of ECU

1. CHECK POWER BACK DOOR ECU Disconnect the P13 and P14 ECU connectors, and check the voltage and resistance of each terminal of the wire harness side connectors If the result is no ...

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Removal
1. REMOVE REAR DOOR WINDOW FRAME MOULDING Remove the screw. Using a heat light, heat the rear door window frame moulding between 40 to 60 C (104 to 140 F). NOTICE: Do not heat the rear door window frame moulding excessively. Slide the rear door window frame moulding upward to r ...

Installation
1. INSTALL FRONT SEAT ASSEMBLY LH Place the seat assembly in the cabin. NOTICE: Be careful not to damage the body. Connect the connectors under the seat assembly. Tighten the 2 bolts on the front side of the seat assembly. Torque: 37 N*m (375 kgf*cm, 27 ft.*lb ...