MICU Control Functions Index
The driver's MICU (built into the driver's under-dash fuse/relay box) is one of the B-CAN components The driver's MICU controls many systems related to the body controller area network and a security system, and also works as a gateway to diagnose the other B-CAN connected ECUs with the HDS Refer to each system circuit diagram for details
MICU CONTROL FUNCTIONS CHART
| System | Function |
|---|---|
| Multiplex Control | Sends switch input/output signal information to the driver's MICU The driver's MICU controls the ECUs electric load and communication based upon the information received via the B-CAN |
| On-Board Diagnosis | The driver's MICU has a gateway function which sends the results of the driver's MICU internal diagnosis and the B-CAN connected ECU's diagnosis to the HDS. |
| Self-Diagnosis | Test mode 1 diagnoses the communication line between the driver's MICU and B-CAN connected units Test mode 2 checks the switch inputs connected to the driver's MICU. |
| Interior Light(s) | The driver's 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 driver's MICU has a sleep function, which it enters during the power down mode |
The driver's MICU also controls the function of these circuits
- Entry lights control (front individual map lights and ceiling light)
- Exterior lights control (including the daytime running lights control, and auto-headlights off control)
- Horns
- Interlock system
- Keyless entry
- Power door locks
- Power window key-off timer
- Security alarm
- Turn signal/hazard warning lights,
- Wiper/washer