2002 LT with ABS, Brake Light & Service Ride Control on

[Sgtduckyboy]

There are no codes, I do have a scanner that does ABS and SRS. When I hit the brakes on wet pavement, car just slides like the old says, so ABS is not engaging. I've only found that I need to replace/repair the ABS control module under the car. I spent an hour last night trying to remove 4 little torx screws on it , only got one to come loose. Is there any trick to getting these off? I was thinking of removing the bracket mounting bolts so it will drop down a little. I dont have much room above the unit to get my hands and small rachet up there, is my thought.

Also, has anyone had similar issue and this fixed it?
I checked grounds and cleaned them up, did not fix it. Checked all fuses, replaced some that were blown, that didnt fix it either. I'm down to the BCM.
THanks