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No.
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Component
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Description
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1.
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Push-button ignition switch
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Push-button ignition switch (push switch) is pressed (ON), and transmits status signal to BCM and IPDM E/R.
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2.
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IPDM E/R
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- IPDM E/R detects push-button ignition switch status, and transmits ignition switch status signal (CAN) to BCM.
- IPDM E/R receives ignition relay-1 (IPDM E/R) control signal and ignition switch ON signal (CAN) from BCM, and controls ignition relay-1
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3.
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BCM
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- BCM controls power distribution system.
- BCM judges ignition position and vehicle condition.
- BCM checks ignition position internally.
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4.
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Ignition relay-2 (in fuse block)
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- Ignition relay-2 is controlled by BCM.
- Ignition relay-2 supplies ignition ON power supply or ignition ON signal to each ECU and system when ignition is turned ON.
- BCM compares status of ignition relay-2 control signal and ignition position judged by BCM.
- BCM monitors ignition relay-2 operating status by ignition relay-2 feedback signal.
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Front blower motor relay (in fuse block)
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- Front blower motor relay is controlled by BCM.
- Front blower motor supplies ignition ON power supply or ignition ON signal to air conditioning system when ignition is turned ON.
- BCM compares status of front blower motor relay control signal and ignition position judged by BCM.
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Accessory relay-1 (in fuse block)
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- Accessory relay-1 is controlled by BCM.
- Accessory relay-1 supplies accessory power supply or ignition ON signal to each ECU when ignition is turned ON.
- BCM compares status of accessory relay-1 control signal, and ignition position judged by BCM.
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