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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 191 (Defogger) >> Roadster >> System Description >> Rear Window Defogger System >> With Navigation >> WITH NAVIGATION : Component Description
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WITH NAVIGATION : Component Description

WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.
COMPONENT DESCRIPTION

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 relay.
AV control unit Displays the rear window defogger is ON on the display when detecting the operation of rear window defogger relay.
BCM
  • Operates the rear window defogger relay when receiving rear window defogger switch signal.
  • Performs the timer control of rear window defogger relay.
Rear window defogger relay
  • Operates the door mirror defoggers with the control signal from BCM.
  • Power is supplied to the soft top control unit (rear window defogger) with the control signal from BCM.
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.
Soft top control unit Soft top control unit detects roof state and controls rear window defogger operation.
Rear window defogger Heats the heating wire with the power supply from the soft top control unit to prevent the rear window from fogging up.
IPDM E/R Transmits rear window defogger ON signal to AV control unit via CAN communication.