Few months ago I changed out the rotors and pads and the rear driver's side caliper. Bled the system and car had been driving great.

Fast forward to yesterday when I returned from a 3 week trip out of town, my son had been using the van and apparently drove it with the brake light illuminated on the dash, no fluid and hardly any brakes for over a week and a half! I drove it for the first time since I got back and was able to locate a leaking caliper, the same one that I replaced. Swapped it out and used my compressor and pressure bleeder to bleed the system after adding fluid.

The brake light is still lite up on the dash and the pedal still seems to go to the floor with limited braking. I've checked for further leaks but haven't found any. Does the MC or abs module need to be bled separately? Can I use forscan for purging the abs? Will driving on a dirt road and activating the abs help purge it? Did him driving for so long without fluid damage the MC?

Really don't want to follow in the footsteps of past members that just threw parts at it and still not have it fixed.

Any help is greatly appreciated!

 

Was able to get it out and get the abs to engage a few times and noticed the fluid reservoir was empty again, light went out and braking is slightly better but it's still far from what it was before. Have to put the pedal almost all the way down before the brakes will engage.