S40 L4-1.9L Turbo VIN 29 B4204T3 (2001)
The housings, top or bottom
Refers to which orientation the housing is shown from in illustrations.
The side in the illustrations that is up is referred to as the top in the text. The side that is down is called the bottom.
The housings, cavities and position numbers
A cavity is the space in the housing where a cable terminal is located. Each cavity has a number and that number (terminal number) is given in the wiring
diagrams as the position number.
Example: designation 24/11:3 means position 3 in connector 24/11.