Abs light on soft brakes

Cajun family

12 pass tall,dark & long
Esp light and traction light glow 24/7 since I've had the van 2 years now. About 8 months ago abs light also came on, changed brake switch and fixed that problem. Now abs light comes on intermittently and if you apply brakes while its lit very soft feel to brakes like there is air in line or something like that. A little scary when it happens any suggestion?
 

Top Bottom