E34 LKM Question

["Vellender, Patrick" <PVellend@xxxxxxx>]

Okay, so I'm having the standard LKM problem where one of my low beams
(passenger side) is out.  I've referenced a couple of sites explaining how
to repair the LKM.  The pictures on the sites show 4 relays (2 on the left
and 2 on the right), but my LKM only has 3 relays (1 on the left and 2 on
the right).  Also, in the pictures you can see B2173 printed on the board,
but my board is printed with B2175.  I suppose that means I have a different
revision.

So, do I care what each relay is for or do I just resolder all of them as
the sites indicate to do?

Thanks,

Pat V.
1989 E34 535i

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