If the indicator lamp 

 lights up while the vehicle is moving, there is a fault in the engine management system.
 lights up while the vehicle is moving, there is a fault in the engine management system.


 lights up while the vehicle is moving, there is a fault in the engine management system.
 lights up while the vehicle is moving, there is a fault in the engine management system.Drive slowly to a qualified workshop without delay and have the fault rectified.