Rear Suspension Clicking & ABS, VSC, Trac Off

[Spinnukur]

Morning,

I'm at a loss on to proceed. Issues below:

1) Rear clicking of the suspension at crawl (No jumping up and down on suspension): Shared album - J B - Google Photos <-- video for reference.
a) I've checked the rear lower and upper links, trackbar, to make sure they're torqued within spec. I've checked the coilovers to make sure they're seated properly, all good. Can't figure out where it's coming from.
b) Talked to ICON and they think it's not the suspension but rather something rotational.

2) Pumping the brakes five times turns off the ABS, VSC, Trac etc and the three amigos on the dash light up. Goes away after five seconds. Brake fluid was a little low; filled it up but the pumping still recreates the aforementioned bug.
a) Just replaced and extended the front left ABS sensor wire as the previous one got stretched.

Any ideas/comments/thoughts on how to proceed would be greatly appreciated.

**2017 4Runner TRD Pro, ICON Stage 7 for reference.

Thanks,
Spinn

 

[Spinnukur]

*For reference: if anyone has had this problem. It was the LCA bolts not being tightened to spec. Rear clicking was the drivetrain needing to be re-greased.