When you say this has been bled, have you used a scanner to command all the valves open and bled the system like that? The connections at ALDL are twelve and two not four. Also, if parking brake is on or something with the switch it will light up ABS light. Try disconnection parking brake switch see if light goes out. This system grounds on right side of engine compartment. I am sending a few things in picture for you to check it includes checking wiring at ABS unit. This is the same system for one of the Honda's but it is wired a little different.
Images (Click to enlarge)
Wednesday, June 21st, 2017 AT 9:40 AM