1. Blown fuse: The power outlet may be on a circuit with a blown fuse. Check the fuse box and replace any blown fuses.
2. Loose wiring: The wiring to the power outlet may be loose. Check the connections and make sure they are secure.
3. Faulty power outlet: The power outlet itself may be faulty. Try plugging in a different device to see if the problem is with the outlet or the device.
4. Overloaded circuit: The circuit that the power outlet is on may be overloaded. Unplug any unnecessary devices from the circuit and see if the power outlet starts working again.
5. Faulty inverter: The Toyota Sienna uses an inverter to convert the 12-volt battery power to 120-volt AC power for the power outlets. If the inverter is faulty, it may not be able to provide power to the outlets. Have the inverter checked by a qualified technician.
If you are unable to resolve the problem yourself, you should take your Toyota Sienna to a qualified technician for diagnosis and repair.
