OBD2 Scan tool not connecting

redneckred
Sat, 14 Mar 2020 13:29:18 +0000
Maintenance/Repairs

I got a 2009 Cobalt from my son that I am trying to repair so I have a starter car for my daughter. The check engine light is on. I connect my OBD2 scan tool to the port, but it does not connect and read the data. I have searched the web and found the fuse under the hood associated with the cigarette lighter/auxiliary port and checked this fuse. I have also checked several around them. Any ideas as to why it still isn’t working?

12 posts - 7 participants