Undertaking the ABS/Brake light issue and im wondering anyone could point me the right direction for supplies and location?

I have repaired two of these. I own two 2005 Astros. In both cases the only fault was the cracked solder joints on the printed circuit board that connects to the solenoid coils that actuate the valves in ABS system. I did not have to disconnect a single brake system hydraulic line. I did not have to remove the ABS valve assembly. All I had to do was reflow the solder. What that means is that you heat the solder joint with a clean soldering iron until it melts and then allow the solder to re-solidify. This reestablishes the bad connections. Sometimes adding a little rosin core solder will help, not necessarily because there is not enough solder there already, but rather because having your soldering iron tip wet with fresh molten solder helps with the heat transfer to the old solder you are melting.