RDX L4-2.3L Turbo (2008)
Heated Element: Description and Operation
How the Circuit Works
Rear Window Defogger
Battery voltage is supplied at all times through fuse 8 (in the under-hood fuse/relay box) to the rear window defogger relay contacts. With the ignition
switch in ON (II), battery voltage is supplied through fuse 36 (in the under-dash fuse/relay box) to the rear window defogger relay coil and to the climate
control unit.
When the rear window defogger/mirror defogger switch (in the front passenger's climate control panel switch) is pressed, the climate control unit
provides ground to the rear window defogger relay coil, which energizes the relay. Battery voltage is supplied to the rear window defogger through the
energized relay.
The rear window defogger is turned off by pressing the rear window defogger/mirror defogger switch a second time or by turning the ignition switch to
LOCK (0).
Power Mirror Defoggers
With the ignition switch in ON (II), battery voltage is supplied through fuse 36 (in the under-dash fuse/relay box) to the power mirror defogger relay and
to the climate control unit.
When the rear window defogger/mirror defogger switch (in the front passenger's climate control panel switch) is pressed, the climate control unit
provides ground to the power mirror defogger relay coil, which energizes the relay. Battery voltage is supplied to both mirror defoggers through the
energized relay.
The power mirror defoggers are turned off by pressing the rear window defogger/mirror defogger switch a second time or by turning the ignition switch
to LOCK (0).
