Ive hooked up a snap on scanner i can enter in vin information it says trying to communicate it ends up failing. not sure what fuse to check if that may be the problem. Im not really sure where to start looking for problems. I looked to see if the wires were connected to the port everything looks normal there.

 

Does the scanner require 12V power? If so, you need an external source, because there is no 12V pin in the OBD-I ALDL connector.

What is the brand and model of the scanner?

 

The scanner does require 12v it has a connection for it on the side of the aldl connector.
I borrowed it from a friend it is a snap on brick

 

And you hooked up 12V?

 

yes the scanner wouldn't turn on without 12v. when it tried to communicate with the car it says failed to communicate make sure key is on. I did turn the key on.

 

Do you have the right key in the connector? I believe its a k9 key.