197 Brake warning light help

Webbo85

Platinum Member
Every now and then my car reminds me its french by lighting up the dash i get the brake failure warning at the top with the esp/abs/spanner and stop light showing.
Although all seems fine when they are all lit other than abs esp being switched off permentally.
It will last around 36hrs then goes off again it seems to turn off when giving it a boot full so I am thinking loose connection or would a sticky calipers cause this any help appreciated.