Ed D

You will need to do an ABS Bleed - I do find that even Pro mechanics do not know how to do ABS Bleed. I was at a Tire kingdom to do a $120 Brake fluid flush and they couldn't get a good pedal. .  The Ford dealer was the only ones that could do it. But I don't trust them. I was sure I was going to end up with all new $900 ABS unit + Master + programming new ABS + ABS Bleed  = ?? $1500. I had soft pedal and random traction control codes.  after used HCU no more codes

I did put in (2) masters and I think I did not need any masters in hind sight.  The master were only 75 bucks.  I got a used ABS unit with brain/HCU combo $70.  I installed all -  the 3 bolts on bracket - very difficult to get at. the (6) brakes lines are easy - the master cylinder is easy.   I got a ABS code after install that I did not have before. (the brain needs reprogramming). So I pulled out and put my brain on used HCU unit and bled up top and then at each wheel.  Had decent brake but soft.  . 

I bought a Foxwell N630 Lite OBD2 scanner and ABS after watching a video on YouTube that had auto bleed procedure. Got it next day from Amazon $139.   I pulled up ABS put did NOT have auto bleed like the video.  I went to my 2003 Ford E350 van and that did have Auto Bleed procedure when I hooked into OBD2. 

I went back to my EDGE into ABS settings of Foxwell and it had separate Tests. One was to run ABS hydraulic pump - I did that and pump came on pedal was better after. I will try the same with bleed tonight.   Air gets trapped in the ABS. I think my HCU had a hung up valve in - This Foxwell has individual test for all ABS functions so I may have been able to sake the valve loose before I did nay of this work - who knows. I also tried on my wife's Honda CRV and it had different ABS stuff - so its not universal ABS scanner. 

this is the used one Im getting and has a pic of the bracket - It shouldnt be too bad with master and battery box removed.

Ill try to video on Saturday when I pull it out

this was the grenade method
 

I saw that video and a couple that did master replace - no fix ( I am on master #2 ) It bench bleeds fine but installed it goes to the floor.  I have a used ABS coming on Monday $70  - a new ford complete with discount is $650 plus.  That video you have is the most descriptive one on how.  I have seen others that do the Grenade that brake treatment - go on dirt road and jam on brakes to get ABS active - sometimes fixes. One guy had success doing it in reverse which makes me think he needed to get the rear abs section active.  I had tried the grenade the break going 30mph and stomp on pedal but still the same.  Some can get a scanner that activates ABS to bleed HCU.

2012 Ford Edge SEL - had booster replaced after I heard a weird leaksound. Had it done under a warranty. Previously had a soft pedal.
They had it apart and didnt call me about doing a Master cylinder for soft pedal. So I put on in myself - not that hard.  I bleed and still get soft pedal - I have been driving like this for a couple of months. Tried more bleeding  Tried the gravel parking lot slam on brakes to get ABS activated.  Tried a bleed system to push fluid up.  I had a shop do a flush and bleed - no different.   I just put in another master - I did bench bleed - very good - put in car - now its even worse.     I see posts and youtubers who changed out ABS module.   I got  Extended warranty on brake booster . 13N02 

I also got an Advanced trac light at the same time - especially if I have been sitting in drive way with car on. I think these may be related. coincidence ?   I have a used ABS coming.    any thoughts.  I have seen vidoes on an auto bleed system as well.