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Service. ESP Electronic Stability Programme Design and function .204 No E M AM GR RO P Y UD ST F EL S ESP is the abbreviation for A responsible driving style adapted to the “Electronic stability programme”. prevailing road and traffic conditions is therefore still essential. The system s task is to assist the driver in demanding driving situations, e.g. if a wild In the course of this booklet, we will explain how animal suddenly runs across path of vehicle, and ESP is based on the proven anti lock braking also to compensate for overreaction on the part system ABS and its related systems TCS, EDL, of the driver and to prevent loss of vehicle EBD and EBC and we will describe the various stability. versions of ESP which we use in our vehicles. However, ESP is not intended for speed manics to try and defy the laws of physics. 204 095 NEW Important Note The Self Study Programme Please always refer to the relevant Service Literature is not a Workshop Manual. for all inspection, adjustment and repair instructions. 2 Contents Introduction 4 Basic physical principles 7 Driving dynamic control . 9 Overview . 12 BOSCH . 14 System overview 14 Design and function of ESP . 16 Functional diagram 32 Self diagnosis . 34 ITT Automotive 36 System overview 36 Design and function of ESP . 38 Functional diagram 56 Self diagnosis . 58 Service . 60 3 Introduction Retrospective Ongoing technical advances in the motor vehicle industry have seen vehicles with increasing performance and power output come onto the market. Even in the early days, designers were confronted with the question of how to keep this technology manageable for the average driver. In other words What systems would be required to ensure maximum braking safety and assist the driver Purely mechanical precursors to the modern day anti lock braking system were first conc