Diagnosis Concept
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The "BMW Fast" (BMW fast access for service and testing) diagnosis concept introduced on the E65 is applied. This concept is based on the "Keyword Protocol 2000" (KWP 2000)
diagnosis protocol defined as part of the ISO 14230 standard. Diagnosis communication takes place entirely on the basis of a transport protocol on the CAN bus.
The Diagnosis bus is connected to the Central Gateway Module. All bus systems apart from the MOST bus are connected to the Central Gateway Module (ZGM).