I was recently in the kick panel of the car tidying the wiring loom to remove a badly fitted central locking kit. Now I found the 2 black plugs and the blue wires and have seen the quick guide to how to pull the codes.
But..... I found the single black wire plug shown in the photo in the how to section how to section under obd1 plug (see here
http://www.subaru-svx.net/forum/showthread.php?t=53915)
In my case this connector was not joined.
Is this only joined when checking codes or does it need to be connected at all times??
Thanks for your help
Jan