The back door can be locked/unlocked and opened/closed by the following procedures.
Automatic door locking and unlocking systems
Locking and unlocking the back doorStandard bolt
HOW TO DETERMINE BOLT STRENGTH
SPECIFIED TORQUE FOR STANDARD BOLTS
HOW TO DETERMINE NUT STRENGTH
*: Nut with 1 or more marks on one side surface of the nut.
HINT:
Use the nut with the same number of the nut strength classification or the
greater than the bolt strength classificati ...