Bus Messages

Messages

Below is a summary of the messages which are sent out by all the car's systems that are connected to a bus. It also shows which systems use the transmitted information. The purpose of the summary is to help you gain an understanding of the car's functional relationships, which is a fundamental prerequisite for rapid fault diagnosis.

DICE

Part 1:

Part 2:

TWICE

Part 1:

Part 2:

ACC







Audio system, main unit







CDC







MIU







SID

Part 1:

Part 2:

STC







PSM







Trionic T7







TCM (cars with Trionic T7 engine management system)







TC/ABS