unknown electrical part

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jsegura525@aol.com - 24 Jul 2007 23:15 GMT

hello,
on my 1991 240, I just noticed that an electrical "box" was
not attached to its wires, the wiring was hanging close to the box,
but
unpluged.
It is about 1" x 2" grey with number

89 99 76 35 44 322
12V/50A

on it.

It sits right behind the battery.

Any idea what it is, I am reluctant to just plug it in....

Thanks,
Joseph

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James Sweet - 25 Jul 2007 02:40 GMT

> hello,
> on my 1991 240, I just noticed that an electrical "box" was
[quoted text clipped - 14 lines]
> Thanks,
> Joseph

It's a relay for something, does the car have ABS?

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jsegura525@aol.com - 25 Jul 2007 21:40 GMT

> <jsegura...@aol.com> wrote in message
>
[quoted text clipped - 22 lines]
>
> - Show quoted text -

Yes, it has ABS...

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JRE - 26 Jul 2007 22:57 GMT

> hello,
> on my 1991 240, I just noticed that an electrical "box" was
[quoted text clipped - 14 lines]
> Thanks,
> Joseph

A relay would be my guess. It's a big one, if so--50 Amps--so I'd look
for a major power-hungry thing that doesn't work. Electric motors (HVAC
blower, ABS pump, radiator fans, ...) and headlights are about the only
things that draw enough power for that big a relay.

Optionally, plug it in and see which fuse blows. Many fuses control
more than one thing. Someone unplugged it for a reason, I'm sure.

JRE

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