LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2007 >> LS 460 >> Repair and Diagnosis >> External Pages >> Different car >> Section 641 (Defogger) >> Function Diagnosis >> Rear Window Defogger System >> Component Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Description

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
COMPONENT DESCRIPTION CHART

BCM
  • Operates the rear window defogger with the operation of rear window defogger switch.
  • Performs the timer control of rear window defogger.
Rear window defogger relay
  • Operates the rear window defogger and the door mirror defogger with the control signal from BCM.
A/C auto amp. (rear window defogger switch)
  • The rear window defogger switch is turned ON.
  • Turns the indicator lamp ON 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(1)
  • Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror from fogging up.
(1) With heated mirrors
scientia non olet · About LEMON Manuals