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PCS-38 < SYSTEM DESCRIPTION > [IPDM E/R (WITHOUT I-KEY)] SYSTEM - 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 • 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 communica- tion. - Outputting signals to actuators - Switches or relays operating - Output requests are being received from control units via CAN communication. • 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. WAKE-UP OPERATION • IPDM E/R changes from the low power consumption mode to the normal mode when it receives a sleep wake-up signal (wake up) from BCM or any of the following conditions is fulfilled. In addition, it transmits a sleep-ready signal (not-ready) to BCM via CAN communication to report the CAN communication start. - Ignition switch ON - An output request is received from a control unit via CAN communication. |