Thank you guys for the responses!
to 98CoupeV6:
The reason why I want to know the pressure and how to measure it, is so I can null out the hydraulic system problem (hopefully), and then it leaves me with just a wiring to the ECU or loose sockets.
to stereo:
I have changed the fluid 2 or 3 KMiles ago, and it looks OK to me...
I can't imagine that it will be bad after that many miles. And I did use Honda's ATF.
Roman.