BODY CONTROL MODULE (BCM)
BODY CONTROL MODULE (BCM)
SM2334306
id094000004100
Purpose
• The BCM performs control of multiple systems such as the power door locks and the windshield wipers and washer based on the input signals such as from the light switch, and the wiper and washer switch.
Function
• The BCM control content is as follows.
Control table
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Control |
Content |
Reference |
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Advanced keyless entry system
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The BCM performs control of the advanced keyless entry system based on the request signal from the LF control unit.
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Keyless entry system
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The BCM performs control of the keyless entry system based on the request signal from the LF control unit.
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(See KEYLESS ENTRY SYSTEM [(US)].)
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Push button start system
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The BCM performs control of the push button start system based on the request signal from the LF control unit.
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Immobilizer system
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The BCM performs control of the immobilizer system based on the request signal from the LF control unit.
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Exterior lighting system
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The BCM illuminates/turns off the headlights based on the signal from the light switch .
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Turn light system
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The BCM performs control of the turn light system based on the signal from the turn switch.
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(See TURN LIGHT SYSTEM [(US)].)
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Front map light
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The BCM performs control of the front map light based on the signals from the door latch switch and interior light switch.
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(See FRONT MAP LIGHT.)
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Rear map light
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The BCM performs control of the rear map light based on the signals from the door latch switch and interior light switch.
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(See REAR MAP LIGHT.)
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Coming home light system
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The BCM performs control of the coming home light system based on the signals from the light switch and the door light switch.
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(See COMING HOME LIGHT.)
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Leaving home light system
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The BCM performs control of the leaving home light system based on the signals from the light switch and the remote transmitter.
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(See LEAVING HOME LIGHT.)
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Power door and fuel-filler lid lock system
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The BCM performs control of the power door and fuel-filler lid lock system based on the signal from the door look link switch.
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Liftgate opener system
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The BCM performs control of the liftgate opener system based on the signal from the liftgate opener switch.
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Windshield wiper
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The BCM performs control of the windshield wipers based on the signal from the wiper and washer switch.
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Rear wiper and washer system
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The BCM performs control of the rear wiper and washer system based on the signal from the wiper and washer switch.
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(See REAR WIPER/WASHER SYSTEM.)
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Blower system
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The BCM performs control of the blower relay based on the request signal from the PCM.
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(See BLOWER SYSTEM.)
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Rear window defogger
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The BCM performs control of the rear window defogger relay based on the signal from the climate control unit.
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Horn
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The BCM performs control of the horn relay based on the signal from the horn system.
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Theft-deterrent system
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The BCM controls the theft-deterrent system based on the signals from the door latch switch, liftgate latch switch, hood latch switch, and door lock link switch.
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Dark current reduction function
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• When the ignition is switched OFF (LOCK) or in the ACC position and all of the following conditions are met, the BCM cuts off the power supply input circuit of the CAN communication and BCM to reduce dark current.
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― 20 s or more have elapsed since ignition was switched OFF (LOCK) or in ACC position― Turn light output control is off― Horn output control is off― ISO communication between the LF control unit and BCM not performed― Security indicator light is not turned on/flashing― LIN communication between the electrical supply unit (ESU) and the BCM is not performed
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Construction
• The BCM is located inside the lower panel on the front driver seat side.
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