I believe there isn't one.
2431
Simply switch on the key to initialize and crank the engine to activate. What kind of problem are you having to ask this type question?
My 1982 Volvo 244GL had a voltage regulator in the back of the alternator so I assume your 1984 is the same
Why does my car kick over but wont start?
Best is what the manufacturer recommends.
on left rear side of engine block
7/8 Inch Socket:
mikehunt
wires on the starter are criss crossed
Tires?
DOT ( 4 ) brake fluid , according to my Chilton Volvo ( 1970 - 83 ) repair book