Rep Power: 0

Hello everybody! Just bought a 2006 civic with 225k kms. It has a check engine light. My OBD reader gives me a "linking error" and yes it works on another car. I checked pin 16 and 5 and to ground also, all showed 12.5V. I'm assuming it shouldn't be a fuse problem since there is battery power at but I'm not really sure. Another thing worth noting, I have only the spare key and I've read somewhere that it might not be able to give authorization to access the ecu or something. Seems unlikely but who knows..

Hope I can resolve this with your help quickly. Snow is here

 
Rep Power: 367

try stopping in a car parts store and have them check the codes for you.

If it works, good.