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Electronic Stability Control:

It is a vehicle safety feature that aims to increase vehicle stability.It does so by detecting and reducing loss of traction (skidding).

During normal driving, ESC works in the background and continuously monitors steering and vehicle direction. It compares the driver's intended direction (determined through the measured steering wheel angle) to the vehicle's actual direction (determined through measured lateral acceleration, vehicle rotation and individual road wheel speeds).

An ECS system will automatically apply brakes in case it detects skidding and try to steer the vehicle in the direction driver intended it to.

It applies brakes to outer front wheel to counter over steer the inner rear wheel to counter under steer. It may also reduce engine power till the vehicle regains control.