That's an obd2 code, that's why it's 4 digits, They were just using a cheap scanner you'll have to use something like the snap on scanner that will tell you what each code is, all though I think honda still has the two wire diagnostic connecter you can jump still right? Try looking for a chevy of the same year codes, because I'm pretty sure all numbers are the same on anything after 1998 like I know all 1700 codes are tranny related, I just can't remeber what the 1100 codes are.