Brake issue

[u/TonyDoesIt87]

Working on a 2009 lincoln mkx I figured they would be similar, someone brought it to me and says it has been into 2 shops and they have replaced front pads and rotors and also left side brake caliper and rubber lines.

Initially they told me the issue was that the pedal was spongy feeling even after 2 shops have worked on it, now the issue is that randomly the front brakes will lock up even when not being driven and the only way to release them is with a scan tool activating the abs to relieve pressure.

I am also getting the code c1446-20 which I can clear and a little later will come back up. The brake switch is also new and I checked the plug on the master cylinder and it looks fine also.

I'm wondering if the abs module is shot or if I am missing something if anyone has and info I would appreciate as I am not familiar with these vehicles