Replace ABS/masterC - possible without special tool?

[brainmedicine]

So long story short, IÂ’ve got a failing ABS unit. Alarm goes off anywhere from 10 to 30 seconds sometimes, but then stops. So unit isnÂ’t totally dead, but itÂ’s close.
I bought a remanufactured unit with warranty, so I am confident in the new unit, but it seems thatÂ’s not enough. Searching the threads here, seems that with a new unit being installed you canÂ’t do this yourself. Some folks say theyÂ’ve managed to do it, but the general consensus is that you need the special Toyota tool to open ABS valves, run the pump and fully bleed the system.
So is that really the case? The majority of posts here seem to say agree, but there are a few who seem to say they managed to do it themselves. But that seems like wishful thinking is IÂ’ve seen no specific procedure explained.
If it is true that you need a little computer unit, I guess I need to take it into a shop to have them do it, correct?

 

[earthrealm]

changed the complete brake abs twice during my 12 year ownership of my truck, didnt need any special tool for bleeding.. just bleed the 4 wheels throughly and evevrything was ok

 

[brainmedicine]

well i wish i knew your secret as i definitely didnt have that luck. swapping the part was fine, bled the rears and by the time i got to the driver rear the stupid alarm came on and would not go off. checked all electrical connections, fine. tried to follow manual and pump master like 40 times to clear it, no change. etc. ended up just having a mechanic with the tool run the process. helped him bleed brakes, which took like literally 3 rounds before stupid alarm finally went off for good. ugh. could have been worse i guess.