Lexus HS - 2011 Fuse Box Diagram

Lexus HS - 2011 Fuse Box Diagram

378
3-7. Other interior features
Power outlets
The power outlet can be used when
The “POWER” switch is in ACCESSORY or ON mode.
NOTICE
To avoid damaging the power outlets
Close the power outlet lid when the power outlet is not in use.
Foreign objects or liquids that enter the power outlet may cause a short circuit.
To prevent blown fuse
Do not use an accessory that uses more than 12 V 10 A.
To prevent 12-volt battery discharge
Do not use the power outlet longer than necessary when the hybrid system is off.
The power outlet can be used for 12 V accessories that run on less than 10
A.
423
4-3. Do-it-yourself maintenance
4
Maintenance and care
Items
Parts and tools
Engine oil level
(
P. 430)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses
(
P. 461)
Fuse with same amperage rating as
original
Headlight aim
(
P. 473)
• Phillips-head screwdriver
Light bulbs
(
P. 475)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
• Wrench
Radiator and condenser
(
P. 436)
Tire inflation pressure
(
P. 451)
• Tire pressure gauge
• Compressed air source
Washer fluid
(
P. 438)
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water
or washer fluid)
428
4-3. Do-it-yourself maintenance
Engine compartment
Engine coolant reservoir
(
P. 434)
Engine oil filler cap
(
P. 431)
Engine oil level dipstick
(
P. 430)
Power
control
unit
coolant
reservoir
(
P. 434)
Brake fluid reservoir
(
P. 437)
Fuse box
(
P. 461)
Engine coolant radiator
(
P. 436)
Power
control
unit
coolant
radiator
(
P. 436)
Condenser
(
P. 436)
Electric cooling fans
Washer fluid tank
(
P. 438)
461
4-3. Do-it-yourself maintenance
4
Maintenance and care
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and replace the fuses as necessary.
Turn the “POWER” switch off.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid off.
Driver’s side instrument panel
Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(
P. 464) for details about which fuse to check.
462
4-3. Do-it-yourself maintenance
Remove the fuse.
Only
type
A
fuse
can
be
removed using the pullout tool.
Check if the fuse is blown.
Type A
Normal fuse
Blown fuse
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 B
Normal fuse
Blown fuse
Replace the blown fuse with a
new
fuse
of
an
appropriate
amperage rating. The amperage
rating can be found on the fuse
box lid.
463
4-3. Do-it-yourself maintenance
4
Maintenance and care
Type C
Normal fuse
Blown fuse
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 D
Normal fuse
Blown fuse
Replace the blown fuse with a
new
fuse
of
an
appropriate
amperage rating. The amperage
rating can be found on the fuse
box lid.
464
4-3. Do-it-yourself maintenance
Fuse layout and amperage ratings
Engine compartment
Fuse
Ampere
Circuit
1
HTR
50 A
Air conditioning system
2
RDI
40 A
Electric cooling fans
3
OIL PMP
10 A
Hybrid system, transmission
4
S-HORN
10 A
No circuit
5
ABS MAIN NO.2
7.5 A
Electronically controlled brake system
6
H-LP CLN
30 A
Headlight cleaner
7
P CON MTR
30 A
P position control system, hybrid sys-
tem, smart access system with push-
button start
8
AMP NO.1
30 A
Audio system, back door opener
9
IGCT
30 A
PCU, IGCT NO.2, IGCT NO.3,
hybrid system
465
4-3. Do-it-yourself maintenance
4
Maintenance and care
10
P CON MAIN
7.5 A
P position control system, hybrid sys-
tem, smart access system with push-
button start
11
AM2
7.5 A
Smart access system with push-button
start, hybrid system, multiport fuel
injection system/sequential multiport
fuel injection system, P position con-
trol system, cruise control system,
dynamic radar cruise control system
12
ECU-B2
7.5 A
Smart access system with push-button
start, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, trunk opener switch
13
MAYDAY
10 A
Lexus link system
14
ECU-B3
10 A
Air conditioning system, rear window
defogger, mirror heater
15
TURN & HAZ
10 A
Turn signal lights, emergency flashers
16
ETCS
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
17
ABS MAIN NO.1
20 A
Electronically controlled brake system
18
P/I 2
40 A
P position control system, hybrid sys-
tem, transmission, smart access sys-
tem with push-button start, horn,
headlights (low beam), back-up lights
19
ABS MTR 1
30 A
Electronically controlled brake system
20
ABS MTR 2
30 A
Electronically controlled brake system
21
H-LP HI MAIN
20 A
Headlights (high beam)
22
AMP NO.2
30 A
Audio system, navigation system
Fuse
Ampere
Circuit
466
4-3. Do-it-yourself maintenance
23
DOOR NO.2
25 A
No circuit
24
P/I 1
60 A
IG2, EFI MAIN, BATT FAN
25
EPS
60 A
Electric power steering system
26
PCU
10 A
Hybrid system
27
IGCT NO.2
10 A
Smart access system with push-button
start, hybrid system, P position control
system, multiport fuel injection sys-
tem/sequential multiport fuel injection
system
28
MIR HTR
10 A
Rear window defogger, mirror heater
29
RAD NO.1
15 A
Audio system, navigation system
30
DOME
10 A
Interior lights, antiglare inside rear
view mirror, audio system, navigation
system, garage door opener
31
ECU-B
7.5 A
Smart access system with push-button
start, air conditioning system, gauges
and meters, outside rear view mirror,
clock, seats position memory, electric
tilt & telescopic steering wheel
32
H-LP LH HI
10 A
Left-hand headlight (high beam)
33
H-LP RH HI
10 A
Right-hand headlight (high beam)
34
EFI NO. 2
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
35
IGCT NO.3
10 A
Hybrid system
Fuse
Ampere
Circuit
467
4-3. Do-it-yourself maintenance
4
Maintenance and care
36
SPARE
30 A
Spare fuse
37
SPARE
10 A
Spare fuse
38
SPARE
7.5 A
Spare fuse
39
EFI MAIN
20 A
EFI NO.2, fuel system
40
BATT FAN
10 A
Battery cooling fan
41
IG2
20 A
Hybrid system, multiport fuel injec-
tion system/sequential multiport fuel
injection system, MET, IGN
Fuse
Ampere
Circuit
468
4-3. Do-it-yourself maintenance
Driver’s side instrument panel
Fuse
Ampere
Circuit
1
TAIL
10 A
Parking lights, tail lights, license plate
lights, side maker lights, front fog lights
2
PANEL
10 A
Navigation system, audio system, air
conditioning system, emergency
flashers switch, wiper de-icer switch,
seat heater switch, P position switch,
headlight cleaner switch, front pas-
senger’s seat belt reminder light,
power window switch, VSC-OFF
switch, HUD switch, AFS-OFF switch,
POWER ·ECO MODE switch, EV
mode switch, view select switch, trunk
opener switch, fuel lid opener switch,
glove box light, rear sunshade switch,
remote touch, rear view mirror switch
469
4-3. Do-it-yourself maintenance
4
Maintenance and care
3
IGN
10 A
Electronically controlled brake sys-
tem, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, Lexus link system, smart access
system with push-button start, stop
lights
4
MET
7.5 A
Meters
5
WIP
30 A
Windshield wipers
6
WASHER
15 A
Windshield washer
7
A/C
10 A
Air conditioning system
8
GAUGE
10 A
AFS, turn signal lights, emergency
flasher lights
9
AFS
10 A
Adaptive front-lighting system
10
ECU-IG NO.2
10 A
Pre-collision system, LKA, dynamic
radar cruise control, air conditioning
system, outside rear view mirror,
HUD, navigation system, tire inflation
pressure warning system
Fuse
Ampere
Circuit
470
4-3. Do-it-yourself maintenance
11
ECU-IG NO.1
10 A
Rear view mirror, electronically con-
trolled brake system, electric power
steering system, moon roof, rain-sens-
ing windshield wiper, emergency
flashers switch, air conditioning sys-
tem, electric head restraints, driver
monitor, steering switch, seat heaters/
ventilators, electric tilt & telescopic
steering wheel, rear sunshade, AFS
12
S/ROOF
30 A
Electric moon roof
13
DOOR RL
25 A
Rear power window (left-side)
14
DOOR RR
25 A
Rear power window (right-side)
15
SHADE RR
10 A
Rear sunshade
16
D FR DOOR
25 A
Driver’s side power window, outside
rear view mirror
17
P FR DOOR
25 A
Passenger’s side power window, out-
side rear view mirror
18
TI & TE
30 A
Electric tilt & telescopic steering
wheel
19
STOP
10 A
Stop lights, electronically controlled
brake system
20
A/C NO.2
10 A
No circuit
Fuse
Ampere
Circuit
471
4-3. Do-it-yourself maintenance
4
Maintenance and care
21
RR FOG
7.5 A
No circuit
22
FUEL OPN
7.5 A
Trunk opener switch, fuel filler door
opener switch
23
OBD
7.5 A
On-board diagnosis
24
PWR SEAT FL
30 A
Driver’s side power seat
25
FR FOG
15 A
Front fog lights
26
PWR SEAT FR
30 A
Passenger’s side power seat
27
PSB
30 A
Pre-collision seat belts system
28
WELCAB
30 A
No circuit
29
DOOR NO.1
25 A
Power door lock system
30
SEAT HTR FL
10 A
Driver’s side seat heater
31
SEAT HTR FR
10 A
Passenger’s side seat heater
32
RAD NO.2
7.5 A
Navigation system, audio system, air
conditioning system, HUD, remote
touch
33
PWR OUTLET
15 A
Power outlet
34
ECU-ACC
10 A
Rear view mirror, air conditioning sys-
tem, audio system, navigation system
Fuse
Ampere
Circuit
472
4-3. Do-it-yourself maintenance
After a fuse is replaced
If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (
P. 475)
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.
CAUTION
To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage, and possibly a fire or injury.
Never use a fuse of a higher amperage rating than indicated, or use any other
object in place of a fuse.
Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
Do not modify the fuses or fuse boxes.
Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring near
the fuse box.
Doing so may cause electric shock, resulting in death or serious injury.
NOTICE
Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer as soon as possible.
5
When trouble arises
537
5-2. Steps to take in an emergency
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on the situation.
Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. (
P. 147)
One of the following may be the cause of the problem:
The electronic key may not be functioning properly.* (
P. 540)
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
There may be a malfunction in the immobilizer system.* (
P. 98)
There may be a malfunction in the P position control system.*
(
P. 150, 508)
The hybrid system may be malfunctioning due to an electrical
problem such as an open circuit or a blown fuse. However,
depending on the type of malfunction, an interim measure is avail-
able to start the hybrid system. (
P. 461)
*: It may not be possible to shift out of the P position.
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
One of the following may be the cause of the problem:
The 12-volt battery may be discharged. (
P. 543)
The 12-volt battery terminal connections may be loose or cor-
roded.
5
When trouble arises
543
5-2. Steps to take in an emergency
If the vehicle 12-volt battery is discharged
The following procedures may be used to start the hybrid system if the vehi-
cle’s 12-volt battery is discharged.
You can also call your Lexus dealer or a qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by following the
steps below.
Open the hood and fuse box
cover.
Push the tab in and lift the lid off.
Open the exclusive jump start-
ing terminal cover.
Slightly pull the tab to open the
cover.
5
When trouble arises
545
5-2. Steps to take in an emergency
Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
To prevent 12-volt battery discharge
Turn off the headlights and the audio system while the hybrid system is off.
Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
When the 12-volt battery is discharged
The hybrid system may not start. (
P. 440)
If the 12-volt battery is depleted with the shift position in P, it will not be possible
to shift out of P. In this case, the vehicle cannot be towed without lifting both
front wheels because the front wheels are locked by the parking lock.
(
P. 489)
When the 12-volt battery is reconnected, start the hybrid system, depress the
brake pedal, and confirm that it is possible to shift into each shift position.
Make sure the “READY” indicator comes on. If the indicator
does not come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables
in the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover and reinstall
the fuse box cover.
Once the hybrid system starts, have the vehicle inspected at your
Lexus dealer as soon as possible.