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Home >> Volvo >> 2000 >> S70 GLT SE >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Control - Theory & Operation - C70, S70 & V70 Turbo & S80 >> Miscellaneous Controls >> Can Communications (C70, S70 & V70) >> Serial Communication

Serial Communication

The ECM communicates serially with the following:

  1. Immobilizer

    The request and exchange of information between the ECM and the engine immobilizer.
  2. DLC

    The serial communication via the DLC, pin 7 is used for reading OBD II codes and data stream by a scan tool.