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Since the door lock switch message was received by all the ECUs expecting to receive a signal, the Failed Circuit 1. Ignition switch is turned ON. 2. The door multiplex control unit transmits a door switch signal. 3. The multiplex integrated control unit (MICU), relay control module and gauge control module expect to receive the door lock switch signal, but since there is a break in the communication circuits, it is not 4. Each ECU that expects to receive the door lock switch signal from the door multiplex control unit will transmit DTCs for the signal that it did not receive. Fig. 6: Example Of Failed Circuit Since there is a break in the communication circuit, the door lock switch signal could not be received by the DIAGNOSTIC TROUBLE CODES There are three DTC types used by the CAN networks.
2004 Acura TSX 2004 ACCESSORIES & EQUIPMENT Multiplex Integrated Control System - TSX
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