Cube L4-1.8L (MR18DE) (2010)
Power Distribution Module: Description and Operation
Power Consumption Control System
With I-Key
POWER CONSUMPTION CONTROL SYSTEM
System Diagram
Without I-Key
POWER CONSUMPTION CONTROL SYSTEM
System Diagram
With I-Key
POWER CONSUMPTION CONTROL SYSTEM
System Description
OUTLINE
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IPDM E/R incorporates a power consumption control function that reduces the power consumption according to the vehicle status.
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IPDM E/R changes its status (control mode) with the sleep wake up signal received from BCM via CAN communication.
Normal mode (wake-up)
- CAN communication is normally performed with other control units.
- Individual unit control by IPDM E/R is normally performed.
Low power consumption mode (sleep)
- Low power consumption control is active.
- CAN transmission is stopped.
SLEEP MODE ACTIVATION
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IPDM E/R judges that the sleep-ready conditions are fulfilled when the ignition switch is OFF and none of the conditions below are present. Then
it transmits a sleep-ready signal (ready) to BCM via CAN communication.
- Outputting signals to actuators
- Switches or relays operating
- Output requests are being received from control units via CAN communication.
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IPDM E/R stops CAN communication and enters the low power consumption mode when it receives a sleep wake up signal (sleep) from BCM and
the sleep-ready conditions are fulfilled.