I was reading codes on my 94 850 Turbo when I noticed there was nothing in the A5 Port. There is no wire to plug the jumper into like there is on the other ports. Does this mean I have no way to read TCU faults? I am perplexed by this.

 

I pulled the box off just to make sure the didn't just fall through but there was no wire.

 

In 850 the A5 is empty on all models. The faults from the TCU (if there are any) can be read from A2.

 

I thought A2 was fuel injection? But I feel dumb now because I just read over the page I have been using again

http://www.matthewsvolvosite.com/read-codes-volvo-850