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BCM (BODY CONTROL MODULE) BCS-7 C D E F G H I J L M A B BCS 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 2. Sleep transient status ● This status shuts down 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 of all control units stops, sleep transient status is switches to 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. ● Three seconds after CAN communication of all control units stops, CAN communication inactive status 4. Sleep status ● BCM is activated with low power mode. ● CAN communication is not active. ● When CAN communication operation is detected, it switches to CAN communication status. ● When a state of the following switches changes, it switches to CAN communication state. – Key switch – Hazard switch – Door lock/unlock switch – Front door switch (driver side, passenger side) – Trunk lid opener switch – Combination switch (passing, lighting switch 1ST position, front fog lamp) – Key fob (lock/unlock signal) – Key cylinder switch ● When control performed only by BCM is required by switch, it shifts to CAN communication inactive ● Status of combination switch reading function is changed. |