must disconnect the battery. There is 12V constant to the ABS actuator. I listed my procedure a while back, here's a short: I was using a brake bleeder like Motive (Bavarian Motorsports version). The Nissan adapter cap sucks and leaks so it's better to just use it for pressure vs filling with fluid or it will leak everywhere. I used Zip ties plus the chain to secure a seal. Disconnect battery, bleed all four corners, go to the ABS actuator and bleed each of the lines at the top of the unit. Place a blue paper towel below in a cup fold to catch the fluid. Bleed until no more air bubbles are present just like at the calipers. After I did this, my brakes are "pulling peoples eyes out".
Good luck!
BTW once ATE Blue is in there, it becomes very difficult to see when you have new amber fluid as everything is stained blue.
