I have a Toyota Auris 2015. I have recently been seeing TRC and ABS light with the engine light turned on. After a while driving ABS warning light goes away but the TRC light stays on. Then after couple of days all warning light goes away. This is really puzzling as to why all system is alarm free as i didnt change any thing during this time. I have checked with Toyota mechanic and also changed brake light switch, but this didnt resolve the issue. I have checked fuses but in vain. Needs more suggestion pls...The only fault codes were break switch which has been changed.