2002 BMW 745LiFACTORY OEM SERVICE PROCEDURE

Byteflight Master

The byteflight master has two tasks to perform:

  • Generation of the synchronization pulses (Sync. Pulse)
  • Setting the satellites in alarm mode (Alarm Pulse)

In the ISIS, the SIM is configured as byteflightΒ  master (bus master). In principle, any satellite can be configured by software as bus master. However, there may only be one bus master in the system.

All other satellites (bus slaves) use the sync pulse for internal synchronization. Each slave can transmit telegrams between the sync. pulses on the byteflight.Β 

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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