Why my 2002 Civic Si doesn't blow air when A/C is turned on?

I did the self diagnosis that Hondas have for the AC system and i get trouble code 12. The ac light turns on when if turn it on but nothing happens( no air)

I replaced the blower motor relay and still doesn't work but when i put a jumper wire from blower relay terminal 3 to 4, the whole AC system works normal with no trouble codes. The blower relay terminal 2 doesn't have 12 volts but blower relay terminal 1 has ground.

is it good to just jump the relay terminal? I would prefer to have it fixed right.

Used 2008 Honda Civic LX?

Hi, I've been looking around to buy a used car and I came across a 2008 Honda Civic from a dealer with 76000 miles and supposed they put new tires on it too. It also looks like it has had one owner and no accidents. It's going for $6000. Is this a good buy?