COMPONENT DESCRIPTION

Item

Function

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.

IPDM E/R

Transmit 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

Displays the 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⁽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 mirror defogger

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Component Description