hey, d/l your service manual @ http://www.hondahookup.com/manuals/. i looked through it and it seems i was incorrect about the cable. it seems that the vehicle speed sensor is not hooked up to a cable, it is hooked up by a wire. i suggest you d/l it and follow the trouble shooting precedures in chapter 11. you will need a digital multimeter.

btw, i suspect a bad vehicle speed sensor or loose connection.