Lexus GS - 2008 Fuse Box Diagram

Lexus GS - 2008 Fuse Box Diagram

353
3-7. Other interior features
3
Interior features
Power outlet
The power outlet can be used when
The “ENGINE START STOP” switch is in ACCESSORY or IGNITION ON mode.
NOTICE
To avoid damaging the power outlet
Close the power outlet lid when not in use.
Foreign objects or liquids that enter the power outlet may cause a short circuit.
To prevent the fuse from being blown
Do not use an accessory that uses more than 12V/10A.
To prevent 12 volt battery discharge
Do not use the power outlet longer than necessary when the engine is off.
The power outlet can be used for 12V accessories that run on less than
10A.
401
4-3. Do-it-yourself maintenance
4
Maintenance and care
Items
Parts and tools
Engine oil level
(
P. 409)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses
(
P. 442)
Fuse with same amperage rating as
original
Headlight aim
(
P. 467)
• Phillips-head screwdriver
Radiator and condenser
(
P. 415)
Tire inflation pressure
(
P. 431)
• Tire pressure gauge
• Compressed air source
Washer fluid
(
P. 420)
• Water washer fluid containing anti-
freeze (for winter use)
• Funnel
406
4-3. Do-it-yourself maintenance
Engine compartment
GS460
Engine oil level dipstick
(
P. 409)
Engine oil filler cap
(
P. 410)
Brake fluid reservoir
(
P. 416)
Fuse box
(
P. 442)
Washer fluid tank
(
P. 420)
Engine coolant reservoir
(
P. 414)
Electric cooling fans
Condenser
(
P. 415)
Radiator
(
P. 415)
Fuse box
(
P. 442)
12 volt battery
(
P. 417)
407
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS350
Engine oil level dipstick
(
P. 409)
Engine oil filler cap
(
P. 410)
Brake fluid reservoir
(
P. 416)
Fuse box
(
P. 442)
Washer fluid tank
(
P. 420)
Engine coolant reservoir
(
P. 414)
Electric cooling fans
Condenser
(
P. 415)
Radiator
(
P. 415)
Fuse box
(
P. 442)
12 volt battery
(
P. 417)
442
4-3. Do-it-yourself maintenance
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 “ENGINE START STOP” switch to OFF.
Remove the engine compartment cover if necessary.
P. 408
Open the fuse box cover.
Engine compartment
Type A
Push the tabs in and lift the lid
off.
Type B
Push the tabs in and lift the lid
off.
STEP
1
STEP
2
STEP
3
443
4-3. Do-it-yourself maintenance
4
Maintenance and care
Front controller in the engine compartment fuse box
(engine compartment: type B)
Lift the lid off while pushing the
tabs on either side.
Left side instrument panel
Remove the lid.
Right side instrument panel
Remove the lid.
444
4-3. Do-it-yourself maintenance
Luggage compartment
Remove the cover.
Luggage compartment (vehicles with active stabilizer suspension
system)
Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(
P. 447) for details about which fuse to check.
Remove the fuse with the pull-
out tool.
STEP
4
STEP
5
445
4-3. Do-it-yourself maintenance
4
Maintenance and care
Check if the fuse has blown.
Type A
Normal fuse
Blown fuse
Replace it with one of an appro-
priate
amperage
rating.
The
amperage rating can be found
on the fuse box lid.
Type B
Normal fuse
Blown fuse
Replace it with one of an appro-
priate
amperage
rating.
The
amperage rating can be found
on the fuse box lid.
Type C
Normal fuse
Blown fuse
Contact your Lexus dealer.
STEP
6
446
4-3. Do-it-yourself maintenance
Type D
Normal fuse
Blown fuse
Contact your Lexus dealer.
447
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
Engine compartment (Type A)
GS460
Fuse
Ampere
Circuit
1
ECU-B
10
VGRS, EPS, driver’s seat switch
module, Lexus link system ECU
2
ABS MAIN3
10
Electronically controlled
brake system
3
TURN-HAZ
15
Turn signal lights, emergency flashers
4
IG2 MAIN
20
IG2, GAUGE and IGN
5
RAD NO.2
30
Audio system
6
D/C CUT
20
DOME and MPX-B
7
RAD NO.1
30
Audio system
448
4-3. Do-it-yourself maintenance
Fuse
Ampere
Circuit
8
MPX-B
10
Multiplex communication system,
front controller, door control system
(power door lock system, door cour-
tesy lights, power windows, power
rear view mirror control system, out-
side rear view mirror heaters), power
seat system, steering sensors, elec-
tronically controlled brake system, tilt
and telescopic steering wheel,
gauges and meters, combination
switch
9
DOME
10
Foot lights, vanity lights, gauges and
meters, steering spot light, steering
switch illumination, rear personal
lights, automatic transmission selec-
tor lever spot light, front personal
lights
10
CDS
10
Noise filter
11
ABS MAIN2
10
Electronically controlled
brake system
12
ABS MOTOR
30
ABS
13
ABS MAIN1
10
Capacitor
14
BATT-E/G
60
FR CTRL BATT, ETCS, ALT-S,
A/F HTR and INJ2
15
P/I-B
60
EFI NO.1, F/PMP and INJ
16
ABS1
50
VDIM
17
RH J/B-B
30
AM2, DOOR FR and DOOR RR
449
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
18
VGRS
40
VGRS
19
MAIN
30
H-LP R LWR and H-LP L LWR
20
STARTER
30
Starting system
21
LH J/B-B
30
FL DOOR, RL DOOR and RAD
NO.3
22
VVT
40
Electronic engine control system
23
EPS
80
EPS
24
ALT
180
RH J/B-AM, LH J/B-AM, E/G-AM,
RR JB, HEATER, DEFOG, FAN1,
FAN2, ABS2, ABS MOTOR,
ABS MAIN1, and ABS MAIN2
25
RH J/B-AM
80
AM1, OBD, STOP SW, TI&TE,
PWR OUTLET, FR P/SEAT RH,
STR LOCK, ECU-IG RH, RH-IG,
ACC, CIG, SECURITY,
FR S/HTR RH and AIR SUS
26
FAN3
80
Electric cooling fans
27
LH J/B-AM
80
S/ROOF, P/SEAT, TV, FL S-HTR,
ECU-IG L, WIP, H-LP LVL, LH-IG,
FUEL OPN, A/C, PANEL, LH-B and
TRK OPN
28
ABS2
30
ABS
29
DEFFOG
50
Rear window defogger, noise filter
30
CDS
40
CDS
450
4-3. Do-it-yourself maintenance
Fuse
Ampere
Circuit
31
FAN1
40
Electric cooling fans
32
HEATER
50
Air conditioning system
33
FAN2
40
Electric cooling fans
34
E/G-AM
60
H-LP CLN, FR CTRL ALT, A/C
COMP and STB-AM
35
RR J/B
80
STOP LP R, STOP LP L, RR-B,
RR TAIL, RR FOG, RR-IG1, PSB,
and RR S/SHADE
451
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS350
Fuse
Ampere
Circuit
1
ECU-B
10
VGRS, EPS, driver’s seat switch
module, Lexus link system ECU
2
ABS MAIN3
25
Electronically controlled
brake system
3
TURN-HAZ
15
Turn signal lights, emergency flashers
4
IG2 MAIN
20
IG2, GAUGE and IGN
5
RAD NO.2
30
Audio system
6
D/C CUT
20
DOME and MPX-B
7
RAD NO.1
30
Audio system
8
MPX-B
10
Multiplex communication system,
front controller, door control system
(power door lock system, door cour-
tesy lights, power windows, power
rear view mirror control system, out-
side rear view mirror heaters), power
seat system, steering sensors, elec-
tronically controlled brake system, tilt
and telescopic steering wheel,
gauges and meters, combination
switch
452
4-3. Do-it-yourself maintenance
Fuse
Ampere
Circuit
9
DOME
10
Foot lights, vanity lights, gauges and
meters, steering spot light, steering
switch illumination, rear personal
lights, automatic transmission selec-
tor lever spot light, front personal
lights
10
CDS
10
Noise filter
11
ABS MAIN2
10
Electronically controlled
brake system
12
ABS MOTOR
30
ABS
13
ABS MAIN1
10
Capacitor
14
BATT-E/G
60
FR CTRL BATT, ETCS, ALT-S and
A/F HTR
15
ABS1
50
VDIM system
16
RH J/B-B
30
AM2, DOOR FR and DOOR RR
17
VGRS
40
VGRS
18
MAIN
30
H-LP R LWR and H-LP L LWR
19
STARTER
30
Starting system
20
LH J/B-B
30
FL DOOR, RL DOOR and RAD
NO.3
21
P/I-B
60
EFI NO.1, F/PMP and INJ
22
EPS
80
EPS
23
ALT
150
RH J/B-AM, LH J/B-AM, E/G-AM,
RR JB, HEATER, DEFOG, FAN1,
FAN2, ABS2, ABS MOTOR,
ABS MAIN1, and ABS MAIN2
453
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
24
RR J/B
80
STOP LP R, STOP LP L, RR-B,
RR TAIL, RR FOG, RR-IG1, PSB,
and RR S/SHADE
25
GLW PLG1
50
Starting system
26
RH J/B-AM
80
AM1, OBD, STOP SW, TI&TE,
PWR OUTLET, FR P/SEAT RH,
STR LOCK, ECU-IG RH, RH-IG,
ACC, CIG, SECURITY,
FR S/HTR RH and AIR SUS
27
ABS2
30
ABS
28
DEFFOG
50
Rear window defogger, noise filter
29
CDS
40
CDS
30
FAN1
40
Electric cooling fans
31
HEATER
50
Air conditioning system
32
GLW PLG2
50
Starting system
33
E/G-AM
60
H-LP CLN, FR CTRL ALT, A/C
COMP and STB-AM
34
LH J/B-AM
80
S/ROOF, P/SEAT, TV, FL S-HTR,
ECU-IG L, WIP, H-LP LVL, LH-IG,
FUEL OPN, A/C, PANEL, LH-B and
TRK OPN
35
FAN2
60
Electric cooling fans
454
4-3. Do-it-yourself maintenance
Engine compartment (Type B)
GS460
Fuse
Ampere
Circuit
1
FR CTRL-B
25
H-LP UPR and HORN
2
A/F
15
Exhaust system
3
ETCS
10
Electronic throttle control system
4
ALT-S
7.5
Charging system
5
INJ2
25
Multiport fuel injection system/
sequential multiport fuel injection
system
6
H-LP CLN
30
Headlight cleaner
7
STB-AM
30
8
DEICER
25
9
FR CTRL-AM
30
FR TAIL, FR FOG and WASHER
455
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
10
IG2
10
Ignition system, noise filter and ECT
ECU
11
EFI NO.2
10
Fuel system, exhaust system, multi-
port fuel injection system/sequential
multiport fuel injection system, elec-
tronic engine control system, leak
detection pump
12
H-LP R LWR
15
Headlight low beam (right)
13
H-LP L LWR
15
Headlight low beam (left)
14
F/PMP
25
Fuel system
15
EFI
25
Multiport fuel injection system/
sequential multiport fuel injection
system, ECT ECU
16
INJ
25
Multiport fuel injection system/
sequential multiport fuel injection
system
17
H-LP UPR
15
Headlight high beams
18
HORN
10
Horns
19
WASHER
20
Windshield wipers and washer
20
FR TAIL
10
Parking lights, side marker light
21
FR FOG
15
Front fog lights
456
4-3. Do-it-yourself maintenance
GS350
Fuse
Ampere
Circuit
1
FR CTRL-B
25
H-LP UPR and HORN
2
A/F
15
Exhaust system
3
ETCS
10
Electronic throttle control system
4
ALT-S
7.5
Charging system
5
H-LP CLN
30
Headlight cleaner
6
A/C COMP
7.5
Air conditioning system
7
DEICER
25
8
FR CTRL-AM
30
FR TAIL, FR FOG and WASHER
9
IG2
10
Ignition system and noise filter
10
EFI NO.2
10
Fuel system and exhaust system
457
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
11
H-LP R LWR
15
Headlight low beam (right)
12
H-LP L LWR
15
Headlight low beam (left)
13
F/PMP
25
Fuel system
14
EFI NO.1
25
Multiport fuel injection system/
sequential multiport fuel injection
system
15
INJ
20
Multiport fuel injection system/
sequential multiport fuel injection
system
16
H-LP HI
15
Headlight high beams
17
HORN
10
Horns
18
WASHER
20
Windshield wipers and washer
19
FR TAIL
10
Parking lights, side marker light
20
FR FOG
15
Front fog lights
458
4-3. Do-it-yourself maintenance
Left side instrument panel
Fuse
Ampere
Circuit
1
FR P/SEAT LH
30
Power seat system
2
A/C
7.5
Air conditioning system
3
TV
7.5
Audio system, air conditioning sys-
tem, rear view monitor system
4
TRK OPN
10
Trunk lid opener
5
LH-B
10
Theft deterrent system
6
S/ROOF
25
Moon roof
7
PANEL
7.5
Steering switch illumination, audio
system, glove box light, automatic
transmission selector lever illumina-
tion, console box light, adaptive vari-
able suspension switch illumination,
cigarette lighter illumination, air con-
ditioning system, VSC OFF switch
illumination, driving pattern selector
switch, seat heater or heated and
ventilated seat switches, register ILL
RH, register ILL LH, fuel filler door
and trunk lid opener switch illumina-
tion, D-SW module
459
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
8
FUEL OPN
10
Fuel filler door opener, trunk lid
opener
9
ECU-IG LH
10
VDIM, electronically controlled
brake system, yaw rate and G sensor,
steering sensor, cruise control sys-
tem, dynamic radar cruise control
system, EPS, VGRS, rear view moni-
tor system, four-wheel drive system,
front controller, moon roof, rain sen-
sor
10
FR S/HTR LH
15
Seat heaters and ventilators
11
RR DOOR LH
20
Rear left door control system (power
door lock system, door courtesy light,
power window)
12
FR DOOR LH
20
Front left door control system (power
door lock system, power rear view
mirror control system, door courtesy
light, outside rear view mirror heater,
power window)
13
RAD NO.3
10
Audio system
14
H-LP LVL
7.5
AFS, automatic headlight leveling
control system
460
4-3. Do-it-yourself maintenance
Fuse
Ampere
Circuit
15
LH-IG
10
Charging system, headlight cleaners,
exhaust gas sensor, rear window
defogger, electric cooling fans, rear
left door control system, front left
door control system, emergency
flashers, automatic transmission, seat
belt pretensioners, Intuitive parking
assist, power window
16
FR WIP
30
Windshield wipers and washer
461
4-3. Do-it-yourself maintenance
4
Maintenance and care
Right side instrument panel
Fuse
Ampere
Circuit
1
FR P/SEAT RH
30
Power seat system
2
OBD
7.5
On-board diagnosis system
3
STOP SW
7.5
Stop/tail lights, multi-port fuel injec-
tion system/sequential multiport fuel
injection system, starting system,
electronically controlled brake sys-
tem, VSC system, shift lock system,
ECT ECU
4
AM1
7.5
5
TI&TE
20
Tilt and telescopic steering wheel,
multiplex communication system
6
SECURITY
7.5
Smart access system with push-but-
ton start
7
STR LOCK
25
Steering lock system
8
GAUGE
7.5
Gauges and meters
462
4-3. Do-it-yourself maintenance
Fuse
Ampere
Circuit
9
IGN
10
Multi-port fuel injection system/
sequential multiport fuel injection
system, SRS airbag system, stop/tail
lights, steering lock system, electroni-
cally controlled brake system, Lexus
link system ECU, occupant classifica-
tion system ECU
10
ACC
7.5
Multiplex communication system,
smart access system with push-but-
ton start, rear view monitor system,
audio system, air conditioning system,
Lexus link system ECU
11
CIG
15
Cigarette lighter
12
PWR OUTLET
15
Power outlet
13
AIR SUS
20
Adaptive variable suspension system
14
RR DOOR RH
20
Rear right door control system
(power door lock system, door cour-
tesy light, power window)
15
FR DOOR RH
20
Front right door control system
(power door lock system, power rear
view mirror control system, door
courtesy light, outside rear view mir-
ror heater, power window), multiplex
communication system
463
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
16
AM2
7.5
Starting system
17
RH-IG
7.5
Seat heater switches, front right door
control system, rear right door con-
trol system, capacitor, combination
switch, seat belt pretensioners, shift
lever switch, power window
18
FR S/HTR RH
15
Seat heaters and ventilators
19
ECU-IG RH
10
Tilt and telescopic steering, combina-
tion switch, multiplex communication
system, power seat, smart entry &
start system, air conditioning system,
audio system, shift lock system
464
4-3. Do-it-yourself maintenance
Luggage compartment
Fuse
Ampere
Circuit
1
RR S/SHADE
7.5
Rear sunshade
2
PSB
30
Pre-collision seat belt
3
RR-IG2
10
4
RR-IG1
10
Pre-collision seat belt, seat belt pre-
tensioners, A/P UNIT, rear sunshade
5
RR-B
10
Trunk light, noise filter
6
RR FOG
7.5
7
STOP LP L
10
Stoplights, back-up light
8
STOP LP R
10
High mounted stoplights
9
RR TAIL
10
Tail lights, license plate lights, rear
side marker lights
465
4-3. Do-it-yourself maintenance
4
Maintenance and care
Luggage compartment
(vehicles with active stabilizer suspension system)
Fuse
Ampere
Circuit
1
STB FR
50
Front stabilizer
2
STB RR
30
Rear stabilizer
3
STB DC/DC
30
DC/DC converter
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. 470)
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 before the entire wiring harness is damaged.
466
4-3. Do-it-yourself maintenance
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 fuses or the fuse box.
NOTICE
Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.
575
6
Vehicle specifications
6-3. Initialization
Items to initialize
Item
When to initialize
Reference
Intuitive parking assist
• After reconnecting or changing the
battery
• After changing a fuse
P. 507
Engine oil maintenance
data
• After changing engine oil
P. 412
Tire pressure warning
system
• When rotating the tires on vehicles
differing with front and rear tire infla-
tion pressures.
• When changing the tire inflation
pressure by changing traveling speed
or load weight, etc.
• When changing the tire size.
P. 423
After reconnecting or performing maintenance on the 12 volt battery, the
following items must be initialized for normal system operation.
368
3-7. Other interior features
Power outlet
The power outlet can be used when
The “POWER” switch is in ACCESSORY or ON mode.
NOTICE
To avoid damaging the power outlet
Close the power outlet lid when not in use.
Foreign objects or liquids that enter the power outlet may cause a short circuit.
To prevent the fuse from being blown
Do not use an accessory that uses more than 12V/10A.
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 12V accessories that run on less than
10A.
415
4-3. Do-it-yourself maintenance
4
Maintenance and care
Items
Parts and tools
Engine oil level
(
P. 422)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses
(
P. 456)
Fuse with same amperage rating as
original
Headlight aim
(
P. 471)
• Phillips-head screwdriver
Radiator and condenser
(
P. 428)
Tire inflation pressure
(
P. 445)
• Tire pressure gauge
• Compressed air source
Washer fluid
(
P. 434)
• Water washer fluid containing anti-
freeze (for winter use)
• Funnel
420
4-3. Do-it-yourself maintenance
Engine compartment
12 volt battery
P. 430
Engine oil level dipstick
(
P. 422)
Engine oil filler cap
(
P. 423)
Brake fluid reservoir
(
P. 429)
Fuse box
(
P. 456)
Washer fluid tank
(
P. 434)
Gasoline engine/power
control unit coolant
reservoir
(
P. 427)
Electric cooling fans
Condenser
(
P. 428)
Radiator
(
P. 428)
456
4-3. Do-it-yourself maintenance
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 to OFF.
Remove the engine compartment cover if necessary.
P. 421
Open the fuse box cover.
Engine compartment
Remove the clips.
Front controller in the engine compartment fuse box
Lift the lid off while pushing the
tabs on either side.
STEP
1
STEP
2
STEP
3
458
4-3. Do-it-yourself maintenance
Luggage compartment (vehicles with active stabilizer suspension
system)
Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(
P. 460) for details about which fuse to check.
Remove the fuse with the pull-
out tool.
Check if the fuse has blown.
Type A
Normal fuse
Blown fuse
Replace it with one of an appro-
priate
amperage
rating.
The
amperage rating can be found
on the fuse box lid.
STEP
4
STEP
5
STEP
6
459
4-3. Do-it-yourself maintenance
4
Maintenance and care
Type B
Normal fuse
Blown fuse
Replace it with one of an appro-
priate
amperage
rating.
The
amperage rating can be found
on the fuse box lid.
Type C
Normal fuse
Blown fuse
Contact your Lexus dealer.
Type D
Normal fuse
Blown fuse
Contact your Lexus dealer.
460
4-3. Do-it-yourself maintenance
Fuse layout and amperage ratings
Engine compartment
Fuse
Ampere
Circuit
1
FR CTRL-B
25
H-LP HI, HORN
2
RELIEF VLV
10
Fuel system
3
ETCS
10
Multiport fuel injection system/
sequential multiport fuel injection
system
4
H-LP CLN
30
Headlight cleaner
5
STB-AM
30
Active stabilizer suspension system
6
DEICER
25
7
FR CTRL-AM
30
FR TAIL, FR FOG, WASH
461
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
8
IG2
10
Multiport fuel injection system/
sequential multiport fuel injection
system, noise filter
9
EFI No.2
10
Fuel system, exhaust system
10
H-LP R LWR
15
Headlight low beam (right)
11
H-LP L LWR
15
Headlight low beam (left)
12
D/C CUT
30
DOME, MPX-B
13
IGCT No.3
7.5
Hybrid battery (traction battery)
14
IGCT No.2
7.5
Hybrid system
15
MPX-B
7.5
Power windows, door control system,
power seat, electronically controlled
brake system, combination switch,
electric tilt and telescopic steering,
gauges and meters
16
DOME
7.5
Interior lights, foot lights, vanity light,
gauges and meters
17
ABS MAIN1
10
Electronically controlled brake sys-
tem
18
ABS MOTOR
30
ABS
19
ABS MAIN2
10
Electronically controlled brake sys-
tem
20
F/PMP
25
Fuel system
21
EFI
25
EFI2, multiport fuel injection system/
sequential multiport fuel injection
system
22
INJ
20
Multiport fuel injection system/
sequential multiport fuel injection
system
462
4-3. Do-it-yourself maintenance
Fuse
Ampere
Circuit
23
A/F
15
Fuel system
24
INV W/P
10
Hybrid system
25
IGCT No.1
20
Hybrid system, IGCT No.2,
IGCT No.3
26
FR FOG
15
Fog light
27
FR TAIL
10
Tail light, rear side marker light
28
WASH
20
Windshield wipers and washer
29
HORN
10
Horn
30
H-LP UPR
20
Headlight high beam
31
DC/DC
140
Charging system
32
RAD FAN
60
Electric cooling fans
33
LH J/B AM
80
S/ROOF, FR P/SEAT LH, TV, A/C,
FUEL OPN, FR WIP, H-LP LVL,
FR S/HTR LH, A/C W/P
34
E/G AM
60
H-LP CLN, FR CTRL-AM, DEICER,
STB AM
35
HEATER
50
Air conditioning system
36
DEFOG
50
Rear window defogger
37
ABS2
30
VSC, ABS
38
RH J/B-AM
80
AM1, OBD, STOP SW, TI & TE,
FR P/SEAT RH, STR LOCK,
SECURITY, ECU-IG R, RH-IG,
F S/HTR RH, CIG, PWR OUTLET,
AIR SUS
463
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
39
RR J/B
80
STOP LP R, STOP LP L, RR TAIL,
PSB, RR FOG, RR-IG1
40
OIL PMP
60
Transmission
41
EPS
80
EPS
42
P/I-B1
60
EFI, F/PMP, INJ
43
E/G-B
30
EM-VLV, FR CTRL-B, ETCS
44
MAIN
30
H-LP R LWR, H-LP L LWR
45
VGRS
40
VGRS
46
ABS1
50
ABS MOTOR, ABS MAIN1,
ABS MAIN2
47
P/I-B2
60
A/F, BATT FAN, IGCT, INV W/P
48
BATT FAN
20
Electric cooling fans
49
RAD No.1
30
Audio system
50
RAD No.2
30
Audio system
51
IG2 MAIN
20
IG2, GAUGE, IGN
52
TURN-HAZ
15
Front turn signal lights, rear turn
signal lights
53
ABS MAIN3
10
Electronically controlled brake sys-
tem
54
ECU-B
10
VGRS, EPS, Lexus Link System ECU
464
4-3. Do-it-yourself maintenance
Left side instrument panel
Fuse
Ampere
Circuit
1
FR WIP
30
Windshield wipers and washers
2
RR-IG
7.5
RR-IG1
3
LH-IG
10
Emergency flashers, seat belt preten-
sioners, headlight cleaners, exhaust
system, rear window defogger, elec-
tric cooling fans, front left door con-
trol system, rear left door control
system
4
H-LP LVL
7.5
Adaptive front lighting system
5
A/C W/P
7.5
Air conditioning system
6
RAD No.3
10
Audio system
7
FR DOOR LH
20
Front left door control system
8
RR DOOR LH
20
Rear left door control system
9
FR S/HTR LH
15
Seat heaters, seat heaters and venti-
lators
465
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
10
ECU-IG LH
10
VGRS, EPS, electronically con-
trolled brake system, yaw rate & G
sensor, dynamic radar cruise control
system, rear view monitor system,
moon roof
11
PANEL
7.5
Steering switches, distance control
switch, audio system, glove box light,
switch illumination, cigarette lighter,
shift lever light, touch screen, rear
personal lights
12
S/ROOF
25
Moon roof
13
FUEL OPEN
10
Fuel lid opener
14
LH-B
10
Theft deterrent system
15
TRK OPN
10
Trunk opener
16
TV
7.5
Touch screen, rear view monitor sys-
tem
17
A/C
7.5
Air conditioning system
18
FR P/SEAT LH
30
Power seat
466
4-3. Do-it-yourself maintenance
Right side instrument panel
Fuse
Ampere
Circuit
1
ECU-IG RH
10
Electric tilt and telescopic steering,
combination switch, power seat,
smart access system with push-but-
ton start, air conditioning system,
touch screen, shift lock system, tire
pressure warning system, front/rear
stabilizer system
2
FR S/HTR RH
15
Seat heaters, seat heaters and venti-
lators
3
RH-IG
7.5
Front right door control system, rear
right door control system, seat belt
pretensioners, transmission, seat
heaters, seat heaters and ventilators
4
AM2
7.5
Starting system
5
FR DOOR RH
20
Front right door control system
6
RR DOOR RH
20
Rear right door control system
467
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
7
AIR SUS
20
AVS
8
PWR OUTLET
15
Power outlet
9
CIG
15
Cigarette lighter
10
ACC
7.5
Audio system, smart access system
with push-button start, touch screen,
rear view monitor system, Lexus Link
System ECU
11
IGN
10
Smart access system with push-but-
ton start, SRS airbag system, stop-
lights, hybrid system, steering lock
system, electronically controlled
brake system, Lexus Link System
ECU, front passenger occupant clas-
sification system ECU
12
GAUGE
7.5
Gauges and meters
13
STR LOCK
25
Steering lock system
14
SECURITY
7.5
Smart access system with push-but-
ton start
15
TI & TE
20
Electric tilt and telescopic steering
16
AM1
7.5
17
STOP SW
7.5
Stoplights, shift lock system
18
OBD
7.5
On-board diagnosis system
19
FR P/SEAT RH
30
Power seat
468
4-3. Do-it-yourself maintenance
Luggage compartment
Fuse
Ampere
Circuit
1
RR TAIL
10
Tail lights, license plate lights
2
STOP LP R
10
High mounted stoplights, stoplights
3
STOP LP L
10
Stoplights, back-up light
4
RR FOG
7.5
5
RR-B
10
Trunk light
6
RR-IG1
10
Pre-collision seat belt, seat belt pre-
tensioners
7
RR-IG2
10
8
PSB
30
Pre-collision seat belt
9
RR S/SHADE
7.5
Rear sunshade
10
RH J/B-B
30
FR DOOR RH, RR DOOR RH,
AM2
11
LH J/B-B
30
FR DOOR LH, RR DOOR LH,
RAD No.3
12
R/B-B
15
D/C cut
469
4-3. Do-it-yourself maintenance
4
Maintenance and care
Luggage compartment
(vehicles with active stabilizer suspension system)
Fuse
Ampere
Circuit
1
STB FR
50
Front stabilizer
2
STB RR
30
Rear stabilizer
3
STB DC/DC
30
DC/DC converter
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. 474)
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 before the entire wiring harness is damaged.
470
4-3. Do-it-yourself maintenance
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 fuses or the fuse box.
NOTICE
Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.
475
4-3. Do-it-yourself maintenance
4
Maintenance and care
Replacing light bulbs
Headlight high beam
Left-hand side: Remove the fuse
box cover.
Unplug
the
connector
while
depressing the lock release.
Turn the bulb base counterclock-
wise to remove it.
STEP
1
STEP
2
STEP
3
575
6
Vehicle specifications
6-3. Initialization
Items to initialize
Item
When to initialize
Reference
Intuitive parking assist
• After reconnecting or changing the
battery
• After changing a fuse
P. 512
Engine oil maintenance
data
• After changing engine oil
P. 425
Tire pressure warning
system
• When rotating the tires on vehicles
differing with front and rear tire infla-
tion pressures.
• When changing the tire inflation
pressure by changing traveling speed
or load weight, etc.
• When changing the tire size.
P. 437
After reconnecting or performing maintenance on the 12 volt battery, the
hybrid system may not start. (
P. 431) Also, the following items must be
initialized for normal system operation.