theres a sensor on the tranny right in the front . it turns the reverse lights on ..unplug that sensor, turn car on and try reverse again...if that helps that sensor is bad...i have the same ecu and thats what i had to do also....either get the new sensor or do like me and go with out reverse lights....any other code problems check this site

http://www.integra.orcon.net.nz/ecucodes

hope that helps....

-David