If a component detects a fault, it reports the fault across the bit-serial data interface to the DME/DDE.
The executed functions are monitored for faults The connected components have their own diagnosis functionality and monitor the following: This means that line faults are also detected. The DME monitors communication across the bit-serial data interface to the connected components. Operating values of the components and their functions to the DME.įault messages of the components to the DME. Identification data of the components to the DME. The following data is interchanged between the DME and the connected components:įunctional requirements from the DME to the components. See system layout at the bottom, image 1. Oil condition sensor (depending on variant). Intelligent battery sensor (depending on model series).Įlectric coolant pump (depending on variant). The following components are connected across the bit-serial data interface with the DME/DDE control unit:Īlternator (varies according to version). The bit-serial data interface is a single-wire data bus with a data transfer rate of 1.2 kBit. Your vehicle is fitted with a DME control unit, Digital Motor Electronics.
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