Component Description

WARNING: This page is about a different car, the 2016 Infiniti QX50. However, it is still accessible from the selected car via links, so may be relevant.

BCM	Operates the rear window defogger with the operation of rear window defogger switch. Transmits rear window defogger control signal to IPDM E/R. Performs the timer control of rear window defogger.
Rear window defogger relay	Operates rear window defogger and door mirror defogger with BCM control.
IPDM E/R	Transmits rear window defogger control signal to AV control unit via CAN communication.
Multifunction switch (Rear window defogger switch)	The rear window defogger switch is installed. Turns the indicator lamp ON when detecting the operation of rear window defogger.
AV control unit	AV control unit transmits rear window defogger switch signal to BCM via CAN communication. AV control unit transmits rear window defogger feedback signal to multifunction switch. Displays rear window defogger ON to the display when detecting the operation of rear window defogger.
Rear window defogger	Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window from fogging up.
Door mirror defogger	Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror from fogging up.