not electric cables, vaccum pipes.
Find the cylinder near the MAP sensor, there is a small vaccum pipe that comes off that and goes under the brake block, and T's into what looks like a brake pipe, that heads off towards the brake system.
On mine the pipe from the cylinder had come off at the T junction.
No idea excatly what this does, but as soon as I put it back the ABS pump primed and held pressure and stopped. Before putting this pipe back on the ABS pump would not stop.

Hope this helps, was an easy fix for me, when I found it!

Gav