Lexus IS - 2008 Fuse Box Diagram

Lexus IS - 2008 Fuse Box Diagram

250
3-5. Other 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 the power outlet is 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 12 V 10 A.
To prevent the battery from being discharged
Do not use the power outlet longer than necessary when the engine is not running.
The power outlet can be used for 12 V accessories that run on less than 10
A.
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4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions.
When working on the engine compartment:
Keep hands, clothing, and tools away from the moving fan and engine drive belt.
Be careful not to touch the engine, 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 or rags, in the engine
compartment.
Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
Items
Parts and tools
Engine oil level
(
P. 295)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses
(
P. 327)
Fuse with same amperage rating as
original
Tire inflation pressure
(
P. 316)
• Tire pressure gauge
• Compressed air source
Headlight aim
(
P. 341)
• Phillips-head screwdriver
Radiator and condenser
(
P. 301)
Washer fluid
(
P. 305)
• Water washer fluid containing anti-
freeze (for winter use)
• Funnel
292
4-3. Do-it-yourself maintenance
Engine compartment
IS350
Battery
(
P. 302)
Engine oil level dipstick
(
P. 295)
Engine oil filler cap
(
P. 295)
Brake fluid reservoir
(
P. 301)
Fuse boxes
(
P. 327)
Washer fluid tank
(
P. 305)
Electric cooling fans
Condenser
(
P. 301)
Radiator
(
P. 301)
Engine coolant reservoir
(
P. 299)
293
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250
Battery
(
P. 302)
Engine oil level dipstick
(
P. 295)
Engine oil filler cap
(
P. 295)
Brake fluid reservoir
(
P. 301)
Fuse boxes
(
P. 327)
Washer fluid tank
(
P. 305)
Electric cooling fans
Condenser
(
P. 301)
Radiator
(
P. 301)
Engine coolant reservoir
(
P. 299)
327
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 “ENGINE START STOP” switch OFF.
Remove the engine compartment cover. (
P. 294)
Open the fuse box cover.
Engine compartment (type A)
Push the tabs in and lift the lid
off.
Engine compartment (type B)
Push the tabs in and lift the lid
off.
STEP
1
STEP
2
STEP
3
328
4-3. Do-it-yourself maintenance
Driver's side instrument panel
Remove the lid.
Passenger's side instrument panel
Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(
P. 331) for details about which fuse to check.
Remove the fuse with the pull-
out tool.
STEP
4
STEP
5
329
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
330
4-3. Do-it-yourself maintenance
Removing the front controller (engine compartment: type B)
Lift the lid off while pushing the
tabs on either side.
Type D
Normal fuse
Blown fuse
Contact your Lexus dealer.
331
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
Engine compartment (type A)
Fuse
Ampere
Circuit
1
ABS NO.3
25 A
VDIM
2
PWR HTR
25 A
3
TURN-HAZ
15 A
Emergency flashers, turn signals
4
IG2 MAIN
20 A
IG2, IGN, GAUGE
5
RAD NO.2
30 A
Audio
6
D/C CUT
20 A
DOME, MPX-B
7
RAD NO.1
30 A
Audio
8
MPX-B
10 A
Headlights, front fog lights, parking
lights, license plate lights, windshield
washer, horn, power door lock system,
power windows, power seats, electric
tilt and telescopic steering column,
meter, smart access system with push-
button start, outside rear view mirrors,
air conditioning system, security sys-
tem
9
DOME
10 A
Interior lights, meter
332
4-3. Do-it-yourself maintenance
Fuse
Ampere
Circuit
10
E/G-B
60 A
FR CTRL-B, ETCS, ALT-S, steering
lock system, exhaust system
11
DIESEL GLW
80 A
12
ABS1
50 A
VSC, VDIM
13
RH J/B-B
30 A
Power door lock system, smart access
system with push-button start
14
MAIN
30 A
Headlight low beams
15
STARTER
30 A
Smart access system with push-button
start
16
LH J/B-B
30 A
Power door lock system, SECURITY
17
P/I-B
60 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
18
EPS
80 A
Power steering
19
ALT
150 A
LH J/B-AM, E/G-AM, GLW PLG2,
HEATER, FAN1, FAN2, DEFOG,
ABS2, RH J/B-AM, GLW PLG1,
LH J/B-B, RH J/B-B
20
GLW PLG1
50 A
PTC heater
21
RH J/B-AM
80 A
OBD, STOP SW, TI&TE, FR P/SEAT
RH, RAD NO.3, ECU-IG RH,
RH-IG, FR S/HTR RH, ACC, CIG,
PWR OUTLET
22
ABS2
30 A
VSC
23
DEFOG
50 A
Rear window defogger
24
FAN2
40 A
Electric cooling fans
25
FAN1
40 A
Electric cooling fans
26
HEATER
50 A
Air conditioning system
333
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
27
GLW PLG2
50 A
PTC heater
28
E/G-AM
60 A
Headlight cleaners, front fog lights,
parking lights, air conditioning system
29
LH J/B-AM
80 A
S/ROOF, FR P/SEAT LH, TV NO.1,
A/C, FUEL/OPEN, PSB, FR WIP,
H-LP LVL, LH-IG, ECU-IG LH,
PANEL, TAIL, MIR HTR,
FR S/HTR LH
334
4-3. Do-it-yourself maintenance
Engine compartment (type B)
Fuse
Ampere
Circuit
1
FR CTRL-B
25 A
Headlight high beam, horn
2
A/F
15 A
Exhaust system
3
ETCS
10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
4
ALT-S
7.5 A
Charging system
5
STR LOCK
25 A
Steering lock
6
H-LP CLN
30 A
Headlight cleaner
7
A/C COMP
7.5 A
Air conditioning system
8
DEICER
25 A
9
FR CTRL-AM
30 A
Front fog lights, parking lights, wind-
shield washer
10
IG2
10 A
Ignition system
11
EFI NO.2
10 A
Fuel system, exhaust system
12
H-LP R LWR
15 A
Headlight low beam (right)
13
H-LP L LWR
15 A
Headlight low beam (left)
335
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
14
F/PMP
25 A
Fuel system
15
EFI
25 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
16
INJ
20 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
17
H-LP UPR
15 A
Headlight high beams
18
HORN
10 A
Horns
19
WASHER
20 A
Windshield washer
20
FR TAIL
10 A
Parking lights
21
FR FOG
15 A
Front fog lights
336
4-3. Do-it-yourself maintenance
Driver’s side instrument panel
Fuse
Ampere
Circuit
1
FR P/SEAT LH
30 A
Power seat
2
A/C
7.5 A
Air conditioning system
3
MIR HTR
15 A
Outside rear view mirror defoggers
4
TV NO.1
10 A
Display
5
FUEL OPEN
10 A
Fuel filler door opener
6
TV NO.2
7.5 A
7
PSB
30 A
Pre-collision seat belt
8
S/ROOF
25 A
Electric moon roof
9
TAIL
10 A
Tail lights, license plate lights, parking
lights
10
PANEL
7.5 A
Switch illumination, air conditioning
system, display
11
RR FOG
7.5 A
12
ECU-IG LH
10 A
Cruise control, air conditioning sys-
tem, power steering, rain sensor, anti-
glare inside rear view mirror, shift lock
system, moon roof, tire inflation pres-
sure warning system
13
FR S/HTR LH
15 A
Seat heaters and ventilators
337
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
14
RR DOOR LH
20 A
Power windows
15
FR DOOR LH
20 A
Power windows
16
SECURITY
7.5 A
Smart access system with push-button
start
17
H-LP LVL
7.5 A
AFS
18
LH-IG
10 A
Charging system, headlight cleaner,
rear window defogger, electric cool-
ing fans, emergency flashers, turn sig-
nal lights, back-up lights, stop lights,
mirror heaters, sun shade, seat belts,
Intuitive parking assist, cruise control,
air conditioning system, PTC heater
19
FR WIP
30 A
Windshield wipers
338
4-3. Do-it-yourself maintenance
Passenger’s side instrument panel
Fuse
Ampere
Circuit
1
FR P/SEAT RH
30 A
Power seat
2
DOOR DL
15 A
3
OBD
7.5 A
On-board diagnosis system
4
STOP SW
7.5 A
Stop lights
5
TI & TE
20 A
Electric tilt and telescopic steering
column
6
RAD NO.3
10 A
Audio
7
GAUGE
7.5 A
Meter
8
IGN
10 A
SRS airbag system, cruise control,
steering lock system, fuel system
9
ACC
7.5 A
Lexus link system, clock, air condition-
ing system, audio, display, outside rear
view mirrors, smart access system
with push-button start
10
CIG
15 A
Cigarette lighter
11
PWR OUTLET
15 A
Power outlet
12
RR DOOR RH
20 A
Power windows
339
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse
Ampere
Circuit
13
FR DOOR RH
20 A
Power windows, outside rear view
mirrors
14
AM2
15 A
Smart access system with push-button
start
15
RH-IG
7.5 A
Seat belts, intuitive parking assist,
automatic transmission, seat heater
and ventilator
16
FR S/HTR RH
15 A
Seat heaters and ventilators
17
ECU-IG RH
10 A
Power seats, smart access system with
push-button start, AWD system, out-
side rear view mirrors, VDIM, VSC,
air conditioning system, pre-collision
seat belt, electric tilt and telescopic
steering, power windows, navigation
system
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. 342)
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.
340
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.