The driver's MICU controls the turn signal lights and horns based upon the input signals of each switch and the B-CAN signals.

	Input	Output
Driver's MICU	IG1 power supply Ignition key switch Driver's door switch Left [right] rear door switch Trunk lid latch switch Left [right] rear door lock knob switch (UNLOCK) Hood switch	Left turn signal lights Right turn signal lights Horns
B-CAN	Audio switch Front passenger's door switch Right [left] rear door switch Driver's door key cylinder switch (LOCK/UNLOCK) Driver's door lock knob switch (UNLOCK) Front passenger's door lock switch (LOCK/UNLOCK) Front passenger's door lock knob switch (UNLOCK) Right [left] rear door lock knob switch (UNLOCK) Keyless LOCK/UNLOCK signal	Driver's MICU (SET 1) signal Driver's MICU (SET 2) signal ALARM (ACTION) signal

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RHD model