Lexus LC - 2018 Fuse Box Diagram

Lexus LC - 2018 Fuse Box Diagram

288
6-3. Do-it-yourself maintenance
Engine oil level
(
P.293)
“Toyota Genuine Motor
Oil” or equivalent
Rag or paper towel
Funnel (used only for
adding engine oil)
Fuses
(
P.319)
Fuse with same amper-
age rating as original
Headlight aim
Phillips-head screw-
driver
Light bulbs
(
P.324)
Radiator and
condenser
(
P.296)
Tire inflation
pressure
(
P.313)
Tire pressure gauge
Compressed air source
Washer fluid
(
P.297)
Water or washer fluid
containing antifreeze
(for winter use)
Funnel (used only for
adding water or washer
fluid)
WARNING
The engine compartment contains many
mechanisms and fluids that may move
suddenly, become hot, or become elec-
trically energized. To avoid death or seri-
ous injury, observe the following
precautions.
When working on the engine com-
partment
LC500h: Make sure that the “IGNI-
TION ON” on the multi-information
display and the “READY” indicator are
both off.
Keep hands, clothing and tools away
from the moving fan and engine drive
belt.
Items
Parts and tools
LC500: Be careful not to touch the
engine, radiator, exhaust manifold, etc.
right after driving as they may be hot.
Oil and other fluids may also be hot.
LC500h: Be careful not to touch the
engine, power control unit, radiator,
exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other
fluids may also be hot.
Do not leave anything that may burn
easily, such as paper and rags, in the
engine compartment.
Do not smoke, cause sparks or expose
an open flame to fuel. Fuel fumes are
flammable.
When working near the electric cool-
ing fan or radiator grille
Be sure the engine switch <power
switch> is off.
With the engine switch <power switch> in
IGNITION ON mode <ON mode>, the
electric cooling fan may automatically
start to run if the air conditioning is on
and/or the coolant temperature is high.
(
P.296)
Safety glasses
Wear safety glasses to prevent flying or
falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE
If you remove the air cleaner filter
Driving with the air cleaner filter
removed may cause excessive engine
wear due to dirt in the air.
2
9
1
6-3. Do-it-yourself maintenance
6
Maintenance and care
LC500
Fuse box (
P.319)
Engine oil level dipstick (
P.293)
Engine coolant reservoir (
P.295)
Engine oil filler cap (
P.293)
Brake fluid reservoir (
P.297)
Washer fluid tank (
P.297)
Electric cooling fan
Condenser (
P.296)
Radiator (
P.296)
E
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Components
A
B
C
D
E
F
G
H
I
2
9
2
6-3. Do-it-yourself maintenance
LC500h
Engine oil level dipstick (
P.293)
Power control unit coolant reservoir (
P.296)
Engine oil filler cap (
P.293)
Brake fluid reservoir (
P.297)
Fuse boxes (
P.319)
Washer fluid tank (
P.297)
Engine coolant reservoir (
P.295)
Electric cooling fan
Condenser (
P.296)
Radiator (
P.296)
12-volt battery
P.298
A
B
C
D
E
F
G
H
I
J
3
1
9
6-3. Do-it-yourself maintenance
6
Maintenance and care
1
Turn the engine switch <power
switch> off.
2
Open the Fuse box cover.
Engine compartment: type A fuse
box (LC500)
Push the tab in and lift the lid off.
Engine compartment: type B fuse
box (LC500h)
Push the tab in and lift the lid off.
NOTICE
Always work with dry hands.
Moisture may cause the battery to
rust.
Do not touch or move any other com-
ponent inside the remote control.
Do not bend either of the battery ter-
minals.
C
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If any of the electrical components
do not operate, a fuse may have
blown. If this happens, check and
replace the fuses as necessary.
Checking and replacing fuses
3
2
0
6-3. Do-it-yourself maintenance
Engine compartment: type C fuse
box (LC500h)
Push the tab in and lift the lid off.
Trunk
Remove the luggage mat.
Push the tab in and lift the lid off.
Driver’s side instrument panel
Push the tab in and remove the lid.
Make sure to push the tab in during
removal or installation.
Front passenger’s side instrument
panel
Remove the cover.
Push the tab in and remove the lid.
Make sure to push the tab in during
removal or installation.
3
2
1
6-3. Do-it-yourself maintenance
6
Maintenance and care
3
Remove the fuse with the pullout
tool.
Only type A fuses can be removed using
the pullout tool.
LC500
LC500h
4
Check if the fuse is blown.
Type A and B:
Replace the blown fuse with a new fuse of
an appropriate amperage rating. The
amperage rating can be found on the fuse
box lid.
Type C and D:
Contact your Lexus dealer.
Type A
Normal fuse
Blown fuse
Type B
Normal fuse
Blown fuse
Type C
Normal fuse
Blown fuse
A
B
A
B
A
B
3
2
2
6-3. Do-it-yourself maintenance
Type D
Normal fuse
Blown fuse
After a fuse is replaced
When installing the lid, make sure that the
tab is installed securely.
If the lights do not turn on even after the
fuse has been replaced, a bulb may need
replacement. (
P.324)
If the replaced fuse blows again, have the
vehicle inspected by your Lexus dealer.
If there is an overload in a circuit
The fuses are designed to blow, protecting
the wiring harness from damage.
When replacing light bulbs
Lexus recommends that you use genuine
Lexus products designed for this vehicle.
Because certain bulbs are connected to cir-
cuits designed to prevent overload, non-
genuine parts or parts not designed for this
vehicle may be unusable.
WARNING
To prevent system breakdowns and
vehicle fire
Observe the following precautions.
Failure to do so may cause damage to
the vehicle, and possibly a fire or injury.
Never use a fuse of a higher amperage
rating than that indicated, or use any
other object in place of a fuse.
A
B
Always use a genuine Lexus fuse or
equivalent.
Never replace a fuse with a wire, even
as a temporary fix.
Do not modify the fuses or fuse boxes.
NOTICE
Before replacing fuses
Have the cause of electrical overload
determined and repaired by your Lexus
dealer as soon as possible.
3
5
1
7-2. Steps to take in an emergency
7
When trouble arises
One of the following may be the cause
of the problem:
The electronic key may not be func-
tioning properly. (
P.356)
There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. (
P.176)
The engine may be flooded.
Try to restart the engine again fol-
lowing correct starting procedures.
(
P.140)
There may be a malfunction in the
engine immobilizer system.
(
P.62)
There may be a malfunction in the
shift control system.
*
(
P.143)
There may be a malfunction in the
steering lock system.
*
:
It may not be possible to shift the shift
position other than P.
One of the following may be the cause
of the problem:
The 12-volt battery may be dis-
charged. (
P.357)
The 12-volt battery terminal con-
nections may be loose or corroded.
(
P.300)
The engine starting system may be
malfunctioning due to an electrical
problem such as electronic key battery
depletion or a blown fuse. However, an
interim measure is available to start the
engine.
One of the following may be the cause
of the problem:
One or both of the 12-volt battery
terminals may be disconnected.
(
P.300)
The 12-volt battery may be dis-
charged. (
P.357)
There may be a malfunction in the
steering lock system.
I
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t
(
L
C
5
0
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)
If the engine will not start even
though correct starting procedures
are being followed (
P.140), con-
sider each of the following points:
The engine will not start even
though the starter motor oper-
ates normally.
The starter motor turns over
slowly, the interior lights and
headlights are dim, or the horn
does not sound or sounds at a low
volume.
The starter motor does not turn
over
The starter motor does not turn
over, the interior lights and head-
lights do not turn on, or the horn
does not sound.
3
5
2
7-2. Steps to take in an emergency
Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the
following steps can be used as an
interim measure to start the engine if
the engine switch is functioning nor-
mally:
1
Press the parking brake switch to
check that the parking brake is set.
(
P.162)
Parking brake indicator will come on.
2
Turn the engine switch to ACCES-
SORY mode.
3
Press and hold the engine switch
for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be started using
the above steps, the system may be
malfunctioning. Have the vehicle
inspected by your Lexus dealer.
One of the following may be the cause
of the problem:
The electronic key may not be func-
tioning properly. (
P.356)
There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. (
P.176)
There may be a malfunction in the
immobilizer system. (
P.62)
There may be a malfunction in the
shift control system.
*
(
P.147)
There may be a malfunction in the
steering lock system.
The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system.
*
:
It may not be possible to shift the shift
position other than P.
Starting the engine in an emer-
gency
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(
L
C
5
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0
h
)
Reasons for the hybrid system not
starting vary depending on the situ-
ation. Check the following and per-
form the appropriate procedure:
The hybrid system will not start
even though the correct starting
procedure is being followed.
(
P.143)
3
5
9
7-2. Steps to take in an emergency
7
When trouble arises
cables and a second vehicle with a 12-
volt battery, you can jump start your
vehicle using the following procedure.
1
Confirm that the electronic key is
being carried.
When connecting the jumper (or booster)
cables, depending on the situation, the
alarm may activate and doors locked.
(
P.65)
2
Open the hood (
P.289) and
open the fuse box cover.
Push the tab in and lift the lid off.
LC500
LC500h
3
Open the exclusive jump starting
terminal cover.
LC500
LC500h
3
6
1
7-2. Steps to take in an emergency
7
When trouble arises
5
Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to
recharge the 12-volt battery of your
vehicle.
6
Open and close any of the door of
your vehicle with the engine switch
<power switch> off.
7
Maintain the engine speed of the
second vehicle and start the engine
<hybrid system> of your vehicle by
turning the engine switch <power
switch> to IGNITION ON mode
<ON mode>.
8
Once the vehicle’s engine <hybrid
system> has started, remove the
jumper cables in the exact reverse
order from which they were con-
nected.
9
Close the exclusive jump starting
terminal cover, and reinstall the fuse
box cover to tits original position.
Once the engine <hybrid system> starts,
have the vehicle inspected at your Lexus
dealer as soon as possible.
Starting the engine <hybrid system>
when the 12-volt battery is discharged
The engine <hybrid system> cannot be
started by push-starting.
To prevent 12-volt battery discharge
Turn off the headlights and the audio sys-
tem while the engine <hybrid system> is
stopped.
Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
When the 12-volt battery is removed or
discharged
Information stored in the ECU is cleared.
When the 12-volt battery is depleted,
have the vehicle inspected at your Lexus
dealer.
Some systems may require initialization.
(
P.403)
When removing the 12-volt battery ter-
minals
When the 12-volt battery terminals are
removed, the information stored in the
ECU is cleared. Before removing the 12-
volt battery terminals, contact your Lexus
dealer.
Charging the 12-volt battery
The electricity stored in the 12-volt battery
will discharge gradually even when the
vehicle is not in use, due to natural dis-
charge and the draining effects of certain
electrical appliances. If the vehicle is left for
a long time, the 12-volt battery may dis-
charge, and the engine <hybrid system>
may be unable to start. (The 12-volt battery
recharges automatically during driving.)
When recharging or replacing the 12-
volt battery
In some cases, it may not be possible to
unlock the doors using the smart access
system with push-button start when the
12-volt battery is discharged. Use the
wireless remote control or the mechani-
cal key to lock or unlock the doors.
The engine <hybrid system> may not start
on the first attempt after the 12-volt bat-
tery has recharged but will start normally
after the second attempt. This is not a
malfunction.
The engine switch <power switch> mode
is memorized by the vehicle. When the
12-volt battery is reconnected, the system
will return to the mode it was in before
the 12-volt battery was discharged.
Before disconnecting the 12-volt battery,
turn the engine switch <power switch> off.
If you are unsure what mode the engine
switch <power switch> was in before the
12-volt battery discharged, be especially
careful when reconnecting the 12-volt
battery.