I bought Mira few days back, and i think the eco idle function is not working, eco idle green sign comes on when i switch on the car then it disappears when i start it. it is also not stopping when i apply brakes, & the sign never comes up after that. i have tried putting the seat belt aswell. Can you please tell me any type of troubleshoot i can try to switch on the eco idle ? front engine battery is liquid AGS one.