Titan 2WD V8-5.6L (VK56) (2004)
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units in the system. Each control unit transmits/receives data, but selectively reads required data only.
BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1. CAN communication status
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With ignition switch ON, CAN communicates with other control units normally.
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Control by BCM is being operated properly.
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When ignition switch is OFF, switching to sleep mode is possible.
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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 transient status
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This status shuts down CAN communication when ignition switch is turned OFF.
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It transmits sleep request signal to IPDM E/R and combination meter.
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Two seconds after CAN communication of all control units stops, CAN communication switches to inactive status.
3. CAN communication inactive status
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With ignition switch OFF, CAN communication is not active.
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With ignition switch OFF, control performed only by BCM is active.
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Three seconds after CAN communication of all control units stops, CAN communication switches to inactive status.
4. Sleep status
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BCM is activated with low current consumption mode.
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CAN communication is not active.
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When CAN communication operation is detected, it switches to CAN communication status.
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When a state of the following switches changes, it switches to CAN communication state:
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Key switch
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Hazard switch
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Door lock/unlock switch
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Front door switch (LH, RH)
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Rear door switch (LH, RH)
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Combination switch (passing, lighting switch 1st position, front fog lamp)
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Key fob (lock/unlock signal)
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Key cylinder switch
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When control performed only by BCM is required by switch, it shifts to CAN communication inactive mode.
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Status of combination switch reading function is changed.
SYSTEMS CONTROLLED BY BCM DIRECTLY
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Power door lock system.
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Remote keyless entry system.
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Power window system.
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Sunroof system.
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Room lamp timer.
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Warning chime system.
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Turn signal and hazard warning lamps system.
NOTE: Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
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Panic system.
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NVIS (NATS) system. Refer to Component Parts and Harness Connector Location, "NVIS(NISSAN Vehicle Immobilizer System-NATS)".
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Headlamp, tail lamp, auto light and battery saver control systems.
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Front wiper and washer system.
