When using an 02-04 RSX Base model ECU (PND) with Hondata Kpro, you can get reverse lockout to work with 6-speed transmissions by moving one wire at the ECU:

Move the wire/pin at B7 to pin location B22.

You must use a PRB calibration file type as well.

That's it, a simple method to gain reverse lockout functionality with a PND ECU.