SIGNAL BUFFER SYSTEM : System Description: Outline

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

BCM has the signal transmission function that outputs/transmits each input/received signal to each unit.

Signal transmission function list

SIGNAL TRANSMISSION FUNCTION LIST

Signal name	Input	Output	Description
Ignition switch ON signal Ignition switch signal	Push-button ignition switch (Push switch)	IPDM E/R (CAN) Driver seat control unit (CAN) Pre-crash seat belt control unit (CAN)	Inputs the push-button ignition switch (push switch) signal and transmits the ignition switch status judged with BCM via CAN communication.
Door switch signal	Any door switch	Combination meter (CAN) IPDM E/R (CAN) Driver seat control unit (CAN) Pre-crash seat belt control unit (CAN)	Inputs the door switch signal and transmits it via CAN communication.
Oil pressure switch signal	IPDM E/R (CAN)	Combination meter (CAN)	Transmits the received oil pressure switch signal via CAN communication.
Stop lamp switch signal	Stop lamp switch	TCM (CAN)	Inputs the stop lamp switch 1 signal and stop lamp switch 2 signal, and transmits it via CAN communication.
Low tire pressure warning lamp signal	Low tire pressure warning control unit	Combination meter (CAN)	Transmits the received low tire pressure warning signal via CAN communication.
Buzzer request signal	Low tire pressure warning control unit	Combination meter (CAN)	Transmits the received buzzer request signal via CAN communication.
Horn request signal	Low tire pressure warning control unit	IPDM E/R (CAN)	Received the horn request signal, transmits the horn reminder signal via CAN communication.