The back door can be locked/unlocked and opened/closed by the following procedures.
Locking and unlocking the back door
Opening/closing the back door from inside the vehicle (vehicles with a power back door)
Press and hold the switch to open or close, when the power back door is unlocked. (A buzzer sounds.)
Pressing the switch while the back
door is opening/closing stops the
operation. 
Side doors
Opening the back door from outside the vehicleCheck for open circuit
For an open circuit in the wire harness in fig. 1,
Check the resistance or voltage, as described below.
Check the resistance.
Disconnect connectors a and c, and measure
the resistance between them.
Standard resistance (fig. 2)
Hint:
Measure the resistance while lightly s ...
System description
Lighting system
Illumination control system (illuminated entry
system):
When the doors are unlocked by a key or
transmitter operation, or when a door is opened or
closed, the illuminated entry system turns on the
room light, map light, foot light and ignition key
cylinder light*1 o ...
Dtc check / clear
Check dtc
Connect the intelligent tester (with can vim) to the
dlc3.
Turn the ignition switch on and turn the intelligent
tester on.
Read the dtc by following the prompts on the
tester screen.
Hint:
Refer to the intelligent tester operator's manual for
further details.
...