The childproof door locks prevent the rear doors from being opened from the inside regardless of the position of the lock tab.
To open the door from the inside when the childproof door lock is on, put the lock tab in the unlock position, lower the rear window, put your hand out of the window, and pull the outside door handle.
■Setting the Childproof Door Locks

Slide the lever in the rear door to the lock position, and close the door.
■ When opening the door
Open the door using the outside door handle.
Shift Lever Housing Replacement (M/T)
NOTE: Take care not to scratch the center console, dashboard, and related
parts.
Remove the center console.
Remove the harness clamps (A).
Remove the lock pin ...
Fuse Locations
INTERIOR FUSE BOX
UNDER-HOOD FUSE BOXES
Primary Fuse Box
Secondary Fuse Box (On the battery)
...
CMP Pulse Plate Removal and Installation
Removal
Remove the air cleaner.
Remove the intake manifold chamber.
Disconnect the following engine wire harness connectors, and remove the
wire harness clamps ...