I don't know if this was found/posted before, but I stumbled across it today. I've never seen such a detailed pin-out of the JZZ30 ECU and body plugs before.
http://wilbo666.pbworks.com/w/page/47216384/1JZ-GTE JZZ30 Soarer
http://wilbo666.pbworks.com/w/page/47216384/1JZ-GTE JZZ30 Soarer