BCM Status Control

BCM changes its status depending on the operation status in order to save power consumption.

1. CAN Communication Status
   
   With ignition switch "ON", CAN communicates with other control units normally. Control by BCM is being operated properly. When ignition switch is "OFF", switching to sleep mode is possible. Even when ignition switch is "OFF", if CAN communication with IPDM E/R and combination meter is active, CAN communication status is active.
2. Sleep Status
   
   This is the status to stop CAN communication when ignition switch is turned "OFF", it transmits sleep request signal to IPDM E/R and combination meter. Two seconds after CAN communication with other control unit stops, it switches to CAN communication inactive status.
3. CAN Communication Inactive Status
   
   With ignition switch "OFF", CAN communication is not active. With ignition switch "OFF", control performed only by BCM is active. Two seconds after CAN communication with other control unit stops, it switches to CAN communication inactive status.
4. Sleep Status
   
   BCM is activated with low-current-consumption mode. CAN communication is not active. When CAN communication operation is detected, it switches to CAN communication status. When control performed only by BCM is required by switch, it shifts to CAN communication inactive mode. It changes combination switch reading function.