1997, Dodge Intrepid. 130K miles.

The currently situations are:
(just in case you want to see it yourself, I made a short video of the
problem, see here:
http://www2.uic.edu/~kzhao3/car02.htm
)

1) The car can start and drive, although if I put it to P, the sound
from the engine seems to indicate that the engine sometimes goes
faster sometimes goes slower.

2) The wiper will start to work at the same time the car is powered
on, and will not stop.

3) The engine speed meter and the car speed meter give random
readings. The engine temperature meter has no reading. The gas meter
has no reading (sometimes will have some reading).

4) Turning signals seem not work too.

5) The light inside the car is not working (usually when I open the
car door, it should light up and dim slowly).

6) The power door lock does not work.

I have done the following checks:

1) I have taken off and checked the multi function switch (the one for
the turning lights, etc) and the headlights switch, they seem OK
according to the manual. And if I start the car without the above two
switches, all the problems still there.

2) I have confirmed that the terminals of the battery are clean and
the cables to them are good. Also, the negative terminal is connected
to the car's frame properly (as suggested by a friend).

3) All the fuses are OK.

So, I think the BCM is dead. How is your guys' idea?

By the way, if I take out the BCM, how can I tell whether it is OK or
not? (for example, by using a multi meter, etc)

Thanks a lot. :-)