![]() ![]() The alternator is not linked to the charge indicator lamp, only to the engine control module. The DME then enters the fault in the fault memory.īSD interface to the alternator The alternator with BSD interface can actively communicate with the engine control module. defective preheating circuit for the combustion preheating control module) Internal faults in the components If a component detects a fault, it reports the fault across the bit-serial data interface to the DME. The executed functions are monitored for faults (e.g. ![]() ![]() This means that wire faults are also detected. The following components in the S54 engine are connected across the bit-serial data interface with the DME/DDE control module: Alternator Oil condition sensor (depending on variant)įunction: The following data is interchanged between the DME and the connected components: Function commands from the DME to the components Identification data of the components to the DME Operating values of the components and their functions to the DME Fault messages of the components to the DMEĭiagnosis: The connected components have their own diagnosis functionality and monitor the following: The DME monitors the communication across the bit-serial data interface to the connected components. Bit-serial data interface (BSD) Bit-serial data interface (BSD) in the S54 The bit-serial data interface is a single-wire data bus with a data transfer rate of 1.2 kBd.
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