MICU Control Function Index
System
Function
Multiplex Control
Sends the information of the switch signals input to the MICU and output information. The MICU controls the ECUs electric load and communication based upon the information received from the B-CAN.
On-board Diagnosis
The MICU has a gateway function which sends the results of the MICU internal diagnosis and the B-CAN connected ECUs diagnosis to the HDS.
Self-diagnosis
To enter the self-diagnostic mode, diagnose the inputs and communications of the MICU. Test mode 1 diagnoses the communication line between the MICU and B-CAN connected unit. Test mode 2 checks the switch inputs connected to the MICU.
Interior Light(s)
The MICU controls the interior lights ON, OFF and dimming based upon the information of the related switches and/or the B-CAN related information.
Sleep Function
The MICU has a sleep function, and enters the power down mode when the MICU does not control the systems.

The MICU also controls the function of these circuits:
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With sunshade