ENGINE MANAGEMENT SYSTEM – TD 18-1-16 DESCRIPTION AND OPERATION 1 Cover 2 Diagnostic socket The diagnostic socket allows the exchange of information between various ECU's on the bus systems and TestBook/ T4 or a diagnostic tool using KW protocol. The information is communicated to the socket via the diagnostic ISO 9141 Kline. This allows the fast retrieval of diagnostic information and programming of certain functions using TestBook/T4 or a suitable diagnostic tool. Engine Sensors and Actuators The EDC system uses sensors and actuators to monitor and control the operation of the engine. The sensors supply data to the ECM and the actuators receive signals from the ECM to control certain functions.
ENGINE MANAGEMENT SYSTEM – TD6 DESCRIPTION AND OPERATION 18-1-17