They are fuses, they do what fuses do, protect electrical circuits.
In the fuse box, left side, next to the battery.
Under the drivers seat.
where is the ignition module located in my 2000 dodge 1500 ram van
Yes
A 2000 Dodge Ram does not have a cabin filter.
The under hood fuse box is next to the battery on the driver side.
2000
yes they will
A 2000 Dodge Ram uses green coolant.
The 2002 1500 parts do not interchange with a 2000.
No
Under the housing where the upper radiator hose hooks to the engine.