Instrumentation Bus (I-Bus)

The instrumentation bus (I-bus) is one of three information links (data link/serial) via a data link to other control units. The instrument bus is monitored by the instrument cluster electronics ( IKE ). The IKE also sets up the interconnection of the bus systems:

- I-bus (instrumentation bus)

- K-bus (body bus)

- Diagnosis bus (link to diagnostic socket),

- CAN bus (instrument cluster-integrated version phased-in as from 5/97)
(gateway function)