Lexus LFA - 2012 Fuse Box Diagram

Lexus LFA - 2012 Fuse Box Diagram

58
1-6. Theft deterrent system
The alarm cannot be set when
In the following situations, the alarm cannot be set. Be careful if the vehicle will not
be used for an extended period of time.
When a battery terminal is disconnected
When the “D/C CUT” fuse is removed
Canceling and automatic re-enabling of the tilt sensor
The alarm will still be set even when the tilt sensor is canceled.
After the tilt sensor is canceled, turning the ignition switch to the “ON” position
or unlocking the doors using the wireless remote control or key will re-enable
the tilt sensor.
When the alarm system is set again, the intrusion sensor and tilt sensor will be
set.
Tilt sensor detection considerations
The sensor may trigger the alarm in the following situations. Cancel the tilt sensor
as necessary.
The vehicle is transported by a ferry, a flatbed track, train, etc.
The vehicle is parked in a parking garage.
Any of the tires loses air pressure.
The vehicle is jacked up.
An earthquake occurs or the road caves in.
NOTICE
To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation
of the system cannot be guaranteed.
214
3-5. Other interior features
Power outlet
The power outlet can be used for 12 V accessories that run on less than 10 A.
Open the glove box. (
P. 210)
Open the lid.
STEP
1
STEP
2
The power outlet can be used when
The ignition switch is in the “ACC” or “ON” position.
NOTICE
To avoid damaging the power outlet
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 fuses
Do not use an accessory that uses more than 12 V 10 A.
To prevent battery discharge
Do not use the power outlet longer than necessary when the engine is not running.
247
4
Maintenance and care
4-3.Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance yourself, be sure to follow the correct proce-
dures as given in these sections.
Items
Parts and tools
Battery condition
(
P. 265)
• Warm water
• Baking soda
• Grease
• Conventional wrench
(for the positive terminal clamp
bolt)
Brake fluid level
(
P. 262)
• FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
• Rag or paper towel
• Funnel
(used only for adding brake fluid)
Condenser
(
P. 261)
Engine coolant level
(
P. 260)
• “Toyota Super Long Life Coolant”
or similar high-quality ethylene gly-
col-based non-silicate, non-amine,
non-nitrite and non-borate coolant
with long-life hybrid organic acid
technology. “Toyota Super Long
Life Coolant” is pre-mixed with
50% coolant and 50% deionized
water.
• Funnel
(used only for adding engine cool-
ant)
Engine oil level
(
P. 257)
• “Mobil 1
5W-50”
• Funnel
(used only for adding engine oil)
Fuses
(
P. 287)
Fuse with same amperage rating as
original
256
4-3. Do-it-yourself maintenance
Engine compartment
Engine oil filler cap
(
P. 257)
Engine oil level dipstick
(
P. 257)
Engine coolant reservoir
(
P. 260)
Brake fluid reservoir
(
P. 262)
Condenser
(
P. 261)
Electric cooling fan
Fuse box
(
P. 287)
266
4-3. Do-it-yourself maintenance
Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following precautions before recharging:
If recharging with the battery installed on the vehicle, be sure to disconnect the
ground cable.
Make sure the power switch on the charger is off when connecting and discon-
necting the charger cables to the battery.
If the vehicle is not used for an extended period of time
Removing the specified fuse helps to suppress parasitic current (the draw on the
battery when the vehicle is shut off).
Turn the ignition switch to the “LOCK” position.
Open the fuse box lid in the engine compartment. (
P. 287)
Before commencing driving again, make sure to return the fuse to its original posi-
tion.
STEP
1
STEP
2
While referring to “Fuse layout and amper-
age ratings” (
P. 290) or the back of the
fuse box lid for the location, use the pull-out
tool
to remove the “D/C CUT” fuse
and put it into
.
Make sure that the fuse is firmly inserted.
STEP
3
287
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 ignition switch to the “LOCK” position.
Open the fuse box lid.
Engine compartment
Push the tabs in and lift the lid off.
Driver's side instrument panel
Remove the lid.
Passenger's side instrument panel
Remove the lid.
STEP
1
STEP
2
288
4-3. Do-it-yourself maintenance
Luggage compartment
Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(
P. 290) for details about which fuse to check.
Remove the fuse with the pull-out
tool.
The pull-out tool is in the fuse box
of the engine compartment.
Check if the fuse has blown.
Type A
Normal fuse
Blown fuse
Replace it with one of an appropri-
ate amperage rating. The amper-
age rating can be found on the fuse
box lid.
STEP
3
STEP
4
STEP
5
289
4-3. Do-it-yourself maintenance
4
Maintenance and care
Type B
Normal fuse
Blown fuse
Contact your Lexus dealer.
290
4-3. Do-it-yourself maintenance
Fuse layout and amperage ratings
Engine compartment
Fuse
Ampere
Circuit
1
INJ
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, noise filter
2
A/PMP HTR
20 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
3
EFI
20 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
4
A/F HTR
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
5
SPARE
30 A
Spare fuse
6
SPARE
20 A
Spare fuse
7
SPARE
10 A
Spare fuse
291
4-3. Do-it-yourself maintenance
4
Maintenance and care
8
CDS FAN
40 A
Electric cooling fan
9
WIP
40 A
Windshield wiper
10
ABS MTR1
50 A
Electronically controlled brake system
11
ACC CUT
7.5 A
Starter system
12
H-LP RH
15 A
Headlight low/high beam (right-side)
13
H-LP LH
15 A
Headlight low/high beam (left-side)
14
E/G IG
5 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, ASG (Automated Sequential
Gearbox)
15
IGN
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, SRS airbag system, electronically
controlled brake system, electric
power control system
16
EFI NO.2
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
17
EFI NO.1
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
18
P/I
50 A
INJ, A/PMP HTR, EFI, A/F HTR
19
ST
30 A
Starter system
20
MAIN
30 A
H-LP RH, H-LP LH
21
ABS MTR2
50 A
Electronically controlled brake system
22
F/PMP
30 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
Fuse
Ampere
Circuit
292
4-3. Do-it-yourself maintenance
23
IG2
20 A
IGN, E/G IG, ECU-IG2, GAUGE
24
D/C CUT
20 A
MPX-B, DOME, P-MPX-B
(for suppressing parasitic current)
25
HORN
15 A
Horn
26
ETCS-RH
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
27
ETCS-LH
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
28
BI XENON
10 A
Headlight low/high beams
Fuse
Ampere
Circuit
293
4-3. Do-it-yourself maintenance
4
Maintenance and care
Driver’s side instrument panel
Fuse
Ampere
Circuit
1
D-P/W
20 A
Power window (driver's side)
2
D-PWR SEAT
30 A
Power seat (driver's side)
3
DRLCK ALT
25 A
Main body ECU
4
RLY SIG
5 A
PANEL
5
OBD
10 A
On-board diagnosis
6
AM1
5 A
D-ACC, P-ACC, CDS FAN, WIP,
WASH, MIR HTR, D-S/HTR, P-S/
HTR, D-IG1-1, D-IG1-2, D-IG1-3, D-
IG1-4, P-IG1-1, P-IG1-2, P-IG1-3, P-
IG1-4, RR-IG1
7
D-S/HTR
15 A
Seat heater (driver's side)
8
D-ACC
5 A
Main body ECU
9
R/MIR
10 A
Outside rear view mirrors
10
D-IG1-1
5 A
CAN gateway ECU
11
D-IG1-4
5 A
Seat heater (driver's side)
12
D-IG1-2
5 A
Main body ECU, rear hatch, EPS
(Electric Power Steering), tire pres-
sure warning system, charging system,
turn signal lights, emergency flashers
294
4-3. Do-it-yourself maintenance
13
D-IG1-3
5 A
Electronically controlled brake sys-
tem, VDIM (Vehicle Dynamics Inte-
grated Management)
14
ABS MAIN D2
10 A
Electronically controlled brake system
15
ABS MAIN D1
10 A
Electronically controlled brake system
16
STOP
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, electronically controlled brake
system, ASG (Automated Sequential
Gearbox), stop/tail lights, high
mounted stoplight
17
DRLCK BAT
25 A
Main body ECU
18
HAZ
10 A
Turn signal lights, emergency flashers,
gauges and meters
19
AM2
5 A
IGN, E/G IG, EFI NO.1, EFI NO.2,
ECU-IG2, GAUGE, ASG-IG2
20
PANEL
5 A
Interior lights
21
DOME
5 A
Interior lights
22
MPX-B
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, main body ECU, rear hatch,
power seat (driver's side), gauges and
meters, VDIM (Vehicle Dynamics
Integrated Management)
Fuse
Ampere
Circuit
295
4-3. Do-it-yourself maintenance
4
Maintenance and care
Passenger’s side instrument panel
Fuse
Ampere
Circuit
1
P-PWR SEAT
30 A
Power seat (passenger's side)
2
P-P/W
20 A
Power window (passenger's side)
3
DISPLAY2
10 A
Navigation system
4
DISPLAY1
10 A
Remote Touch, navigation system, air
conditioning system
5
A/C
10 A
Air conditioning system
6
P-ACC
5 A
Remote Touch, navigation system, air
conditioning system, Lexus Enform
7
P-CIG
15 A
Power outlet
8
P-IG1-4
5 A
Seat heater (passenger's side)
9
P-IG1-1
5 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, air conditioning system
10
P-IG1-3
5 A
SRS airbag system, VDIM (Vehicle
Dynamics Integrated Management)
11
P-IG1-2
5 A
Navigation system, air conditioning
system
12
ABS MAIN P1
10 A
13
ABS MAIN P2
10 A
Electronically controlled brake system
296
4-3. Do-it-yourself maintenance
14
PMG
5 A
Electric power control system
15
RAD NO.1
10 A
Audio system
16
MAYDAY
5 A
Lexus Enform
17
P-S/HTR
15 A
Seat heater (passenger's side)
18
MIR HTR
15 A
Outside rear view mirror defoggers
19
P-MPX-B
5 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, wireless remote door lock func-
tion, power seat (passenger’s side)
20
GAUGE
10 A
Gauges and meters
21
ECU-IG2
5 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, ASG (Automated Sequential
Gearbox), electric power control sys-
tem, passenger occupant classifica-
tion system, CAN gateway ECU,
Lexus Enform
Fuse
Ampere
Circuit
297
4-3. Do-it-yourself maintenance
4
Maintenance and care
Luggage compartment
Fuse
Ampere
Circuit
1
VSSR
5 A
Electric power control system
2
RR-IG1
10 A
Active rear wing, electric cooling fans,
electronic parking brake, electroni-
cally controlled brake system, seat
belts, navigation system, rear window
defogger, back-up lights
3
WASH
20 A
Windshield washer
4
F/OPN
10 A
Fuel filler door opener
5
TAIL
10 A
Parking lights, front side marker lights,
rear side marker lights, license plate
lights, stop/tail lights
6
RR FOG
7.5 A
7
AMP RH
30 A
Audio system
8
AMP LH
30 A
Audio system
9
OIL PMP
25 A
ASG (Automated Sequential Gear-
box)
10
RR ECU-B
7.5 A
Active rear wing, electronic parking
brake
11
ASG-IG2
7.5 A
ASG (Automated Sequential Gear-
box)
298
4-3. Do-it-yourself maintenance
12
ASG-B
7.5 A
ASG (Automated Sequential Gear-
box)
13
BK/UP BAT
10 A
Electronically controlled brake system
14
ASG-SOL
10 A
ASG (Automated Sequential Gear-
box)
After a fuse is replaced
If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. Take your vehicle to your Lexus dealer for inspection.
If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
CAUTION
To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing 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 the fuse box.
NOTICE
Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer as soon as possible.
Fuse
Ampere
Circuit
93
Advice for long-term storage
Battery
Removing the speci
ed fuse helps to suppress parasitic current.
However, as the battery naturally loses its charge over time, it may become discharged
if the vehicle is stored for more than several months.
If the vehicle battery is discharged (
P. 94)
Remove the fuse
1
Turn the ignition switch to the “LOCK” position.
2
Open the hood.
Hood (
P. 12)
3
Open the fuse box lid in the engine
compartment.
Push the tabs in and lift the lid off.
4
While referring to the back of the fuse
box lid for the location, use the pull-
out tool A to remove the “D/C CUT”
fuse B and put it into C.
Make sure that the fuse is
rmly inserted.
116
Engine response
56
Engine speed control
40
Engine speed limiters
16, 17
Engine starting restrictions in
extremely low temperatures
17
“ENGINE START” switch
9
Engine switch
9
Engine type
16
EPB (Electric Parking Brake)
52
EPS (Electric Power Steering)
system
44
Exterior care
78
Exterior maintenance
78
F
Flat bed transporting
100
Flat-bottomed steering wheel
45
Floating disc
53
Floating rotor
53
Floor mat usage
22
Floor-mounted brake pedal
51
Front brake caliper
52
Front brake rotor
53
Front counter gear
38
Front disc
53
Front rotor
53
Front suspension
47
Fuel
63
Fuel
ller door
12
Fuel
ller door manual unlock
95
Fuel gauge
63
Fuel level units selection
67
Fuel tank
63
Fuel tank cap
12
Fuel tank volume
12
Fuel type
12
Fuelling up
12
Fuse
93
G
Gas
63
Gas
ller door
12
Gas
ller door manual unlock
95
Gas level units selection
67
Gas tank
63
Gas tank cap
12
Gas tank volume
12
Gas type
12
Gauge
57
Gauge cluster
57
Gauges
57
Gear selection
36
Genuine leather maintenance
84
H
Handbrake
9
Heel stopper
22, 51
Hood
12
Hood stand
12
I
Ideal driving position
17
If the vehicle battery is discharged
94
Ignition switch
9
119
Index
Rear quarter window cleaning
80
Rear rotor
53
Rear suspension
47
Rear wing (operation)
28
Rear wing cleaning
80
Rear wing manual operation
80
Rear-mounted transaxle
39
Red zone
59, 70
Refueling
12
Regarding launch control
33
Regarding suspension
adjustments
47
Regarding the brake override
system
50
Remove the fuse
93
Response
56
Restricted maximum engine
speed during break-in period
17
Restricted maximum engine
speed in extremely low
temperatures
17
Restricted maximum engine
speed in neutral gear
17
Rev counter
57
Rev Indicator
67, 70
Rev limiters
16
Rev Peak
67, 71
Reverse selector switch
9
Reversing
11
Ride height
47
RPM peak-hold
67
RPM/Rev memory indicator
71
RPM/Rev memory needle
71
S
Scrub radius
47
Seat adjustment
21
Seat adjustment range
21
Seat angle adjustment
20
Seat cushion front edge height
adjustment
21
Seat forward/backward slide
adjustment
21
Seat height adjustment
21
Seat position
20
Seat slide adjustment
20
Seat switch
10
Seatback angle adjustment
21
Seatback reclining angle
adjustment
21
Selecting a driving mode
27
Settings
67
Shift down
40
Shift paddles
40, 41
Shift shock
41
Shift speed
41
Shift speed selector
41
Shift up
40
Shifting
36
Side mirror switches
9
Spare tools
100
Special selection color
“Matte Black”
81