And where did you find it?

 

To purchase? eBay To replace? Under the passenger side of the dash.

 

I had the same problem on April 21st, sunroof and passenger side window stuck.
my question is: where did you buy the module?
Thanks in advance

 

No problem, my came from eBay, but a different seller: Honda S2000 convertible roof control unit ECU Module Relay 86500-S2A-003 99-09 | eBay

 

The module has been changed, the roof works.

Thanks for the tip.

Anyway the original module seems in excellent conditions.

 

Most likely thing to go bad is the mechanical bits, not the electronic bits. So that'd be the 3 relays. The large black boxes made by Omron. Wouldn't be difficult for someone with soldering skills to replace them.

Looks like these might be a match:

Omron relays on eBay

 

I strongly believe this is my my problem. The correct part number is 86500-SA2-A01 not 003. That's the Honda part reference and the part number on the unit in my car for 23 years. I looked. I was able to order it $328 new $54 used which pleased me. I got new. Looking at the Convertible Electric Schematic Both top motors and the passenger window motor are controlled through the 86500-S2A-A01 unit. Where the Driver window is not and it works fine. I find that odd but it is the only single failure that would cause both things to not work. All fuses were good. I am so confident after looking at the schematic I parked in the garage covered and did not raise the top manually or do voltage checks until the part comes.
Update: 11/25/24 Replaced Module 86500-S2A-A01 $328.73 from Hondapartsnow.com. Took 15 min. Both top and Pass window work like new. Happy Camper!