I'm not the most informed on these matters, but my ABS suddenly became faulty on the front nearside. I traced as you a faulty outside wiring.
Unlike you I couldn't drill mine out and had to get a secondhand hub fitted as even the garage couldn't get it out.
What they did find though was that just beyond the plug that vanished into the engine bay there had been a short and the wires had fused.
A replacement plug cut and shut and new ABS sensor from a well known auction site resolved it all. Light now out and my cruise control is working again
