Electrical components

Electrical components
SECTION
6–4
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses . . . . . . . . . . . . . . . .
Checking the cartridge type fuses . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the headlight aim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
344
348
350
351
353
354
355
356
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2003 IS300 from Aug. ’02 Prod. (OM53439U)
ELECTRICAL COMPONENTS
SPECIFICATIONS
– FUSE LOCATION
– FUSES
SV64022
SV64029
Driver’s side kick panel
1 Engine compartment
2 Passenger’s side kick panel
3 Driver’s side kick panel
SV64023
Passenger’s side kick panel
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ELECTRICAL COMPONENTS
SV64031
Engine compartment
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ELECTRICAL COMPONENTS
No.
FUSE
AMPERE
1
D FR P/W
20
Power window system
10
Tail lights, Side marker lights,
License plate lights,
Parking lights
10
Back–up lights, Power window,
Gauges and meters,
Service reminder indicators and
buzzers,
Emergency flashers,
Windshield defogger,
Outside rear view mirror
defogger
2
3
4
5
TAIL
GAUGE
DOOR
PANEL
CIRCUIT
20
Door lock system
7.5
Instrument panel lights,
Seat heater, Cigarette lighter,
Automatic transmission system,
Traction control system,
Rear fog light, Ashtray light
No.
FUSE
AMPERE
CIRCUIT
13
ECU–IG
10
Radiator fan,
Anti–lock brake system,
Moon roof, Shift lock system,
Air conditioning system,
Door lock system,
Headlight beam level control,
Theft deterrent system
14
SRS–ACC
10
SRS system
15
STOP
15
Stop lights, Shift lock system,
Anti–lock brake system
16
WIPER
25
Windshield wipers
17
RADIO
NO.2
10
Audio, Air conditioning,
Outside rear view mirror,
Shift lock system
18
DOOR DL
15
Power seat system
19
DOME
7.5
Interior lights, Trunk light,
Vanity lights,
Ignition switch light, Map light,
Door courtesy lights
6
WASHER
15
Windshield washer,
Headlight cleaner
7
STARTER
7.5
Starting system
20
FR FOG
15
Fog lights
8
FR DEF
20
Windshield wiper deicer
21
P FR P/W
20
Power window system
9
A/C
10
Air conditioning system
22
15
Power outlets
10
SEAT HTR
15
Seat heater
PWR
OUTLET
11
CIG
15
Cigarette lighter, Power outlet
23
ECU–B2
7.5
Theft deterrent system,
Door lock system
12
S/ROOF
30
Moon roof
24
D RR P/W
20
Power window system
25
MIR HTR
15
Outside rear view mirror
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ELECTRICAL COMPONENTS
No.
FUSE
AMPERE
26
MPX–B
10
Power window system,
Air conditioning,
Gauges and meters,
Theft deterrent system
27
P RR P/W
20
Power window system
28
SRS–B
7.5
SRS system, Door lock system
29
TV
7.5
Television
30
OBD
7.5
31
32
IGN
ECU–B1
CIRCUIT
No.
FUSE
AMPERE
CIRCUIT
37
RADIO
NO.1
20
38
TURN–HAZ
15
Turn signal lights
Audio
39
EFI
25
Multiport fuel injection
system/sequential multiport fuel
injection system,
Emission control system,
Engine immobiliser system
On–board diagnosis system
40
DRL NO.2
30
Daytime running light system
41
DRL NO.1
7.5
Daytime running light system
7.5
SRS system,
Multiport fuel injection
system/sequential multiport fuel
injection system,
Cruise control system
42
H–LP L
LWR
15
Left–hand headlight
(low beam), Fog lights
43
H–LP R
LWR
15
Right–hand headlight
(low beam)
44
ABS2
7.5
Anti–lock brake system
20
Theft deterrent system,
Door lock system,
Interior light, Trunk light,
Vanity light, Ignition switch light,
Map light, Door courtesy lights,
Power window system,
Air conditioning,
Gauges and meters
45
SPARE
Spare fuse
46
SPARE
Spare fuse
47
SPARE
Spare fuse
48
H–LP L
UPR
10
Left–hand headlight
(high beam)
49
H–LP R
UPR
10
Right–hand headlight
(high beam),
Service reminder indicators and
buzzers
33
ALT–S
7.5
Charging system
34
ETCS
15
Electronic throttle control
system
35
AM2
20
Starting system, SRS system,
Multiport fuel injection
system/sequential multiport fuel
injection system, Cruise control
system
36
HORN
10
Horn
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ELECTRICAL COMPONENTS
CHECKING BATTERY CONDITION
Precautions
CAUTION
BATTERY PRECAUTIONS
The battery produces flammable and explosive
hydrogen gas.
Do not cause a spark by contacting the battery
terminals with tools.
Do not smoke or light a match near the battery.
The electrolyte contains poisonous and corrosive
sulfuric acid.
Avoid contact with eyes, skin or clothes.
If electrolyte gets on your skin, thoroughly wash the
contacted area. If you feel a pain or burn, get medical
attention immediately.
If electrolyte gets on your clothes, there is a
possibility of its soaking through to your skin, so
immediately take off the exposed clothing and follow
the procedure above, if necessary.
If you accidentally swallow electrolyte, drink a large
quantity of water or milk. Follow with milk of
magnesia, beaten raw egg or vegetable oil. Then go
immediately for emergency help.
Warning:
Battery posts, terminals and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
Never inhale or swallow electrolyte.
Wear protective safety glasses when working near
the battery.
Keep children away from the battery.
EMERGENCY MEASURES
If electrolyte gets in your eyes, flush your eyes with
clean water for at least 15 minutes and get immediate
medical attention. If possible, continue to apply
water with a sponge or cloth while traveling to the
medical office.
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ELECTRICAL COMPONENTS
Checking battery exterior
NOTICE
Make sure the engine and all accessories are turned
off before performing maintenance.
SV64002
When checking the battery, remove the ground cable
first and reinstall it last.
Be careful not to cause a short circuit with tools.
Take care no solution gets into the battery when
washing it.
1 Terminals
2 Hold–down clamp
Check the battery for corroded or loose connections,
cracks, or loose hold–down clamps.
1. If the battery is corroded, wash it off with a solution of warm
water and baking soda. Coat the terminals with grease to
prevent further corrosion.
2. If the connections are loose, tighten the clamp bolts – but
do not overtighten.
3. Tighten the hold–down clamp only enough to keep the
battery firmly in place. Overtightening may damage the battery
case.
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ELECTRICAL COMPONENTS
Checking battery condition
Checking by indicator
BATTERY RECHARGING
PRECAUTIONS
During recharging, the battery is producing hydrogen
gas.
Therefore, before recharging:
SV64016
Check the battery condition by the indicator color.
1
BLUE – Good condition.
2
WHITE – Charging necessary. Have the battery checked
by your Lexus dealer.
3
RED – Have the battery checked by your Lexus dealer.
1. If recharging with the battery installed on the vehicle, be
sure to disconnect the ground cable.
2. Make sure the power switch on the recharger is off when
connecting the charger cables to the battery and when
disconnecting them.
CAUTION
Always charge the battery in an unconfined area. Do
not charge the battery in a garage or closed room
where there is not sufficient ventilation.
Only do a slow charge (5 A or less). Charging at a
quicker rate is dangerous. The battery may explode
causing personal injuries.
NOTICE
Do not refill the battery with water.
NOTICE
Never recharge the battery while the engine is running.
Also, be sure all accessories are turned off.
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2003 IS300 from Aug. ’02 Prod. (OM53439U)
ELECTRICAL COMPONENTS
CHECKING AND REPLACING THE
BLADE TYPE FUSES
SV64017
SS64009
Engine compartment
1 Spare fuses
2 Pull–out tool
1. Turn the ignition switch off and open the fuse box lid.
Driver’s side kick panel
Determine which fuse may be causing the problem. The lid of
the fuse box shows the name of the circuit for each fuse.
SS64012a
Passenger’s side kick panel
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2003 IS300 from Aug. ’02 Prod. (OM53439U)
ELECTRICAL COMPONENTS
64L013
2. Make sure the inoperative component is turned off. Pull
the suspected fuse straight out with the pull–out tool and
check it. If it has blown, push a new fuse into the clips.
64G008
Good
Blown
a. Look carefully at the fuse. If the thin wire is broken, the fuse
has blown. If you are not sure or if it is too dark to see, try
replacing the suspected fuse with one of the same value that
you know is good.
b. Install only a fuse with the amperage rating designated on
the fuse box lid.
If you do not have a spare fuse, in an emergency you can pull
out the ”CIG”, ”RADIO NO.1” or ”OBD” fuse, which may be
dispensable for normal driving, and use it if its amperage rating
is the same.
If you cannot use one of the same amperage, use one lower
than, but as close as possible to, the amperage. If the
amperage is lower than that specified, the fuse might blow out
again but this does not indicate anything wrong. Be sure to get
the correct fuse as soon as possible and return the substitute
to its original clips.
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ELECTRICAL COMPONENTS
It is a good idea to purchase a set of spare fuses and keep them
in your vehicle for emergencies.
If the new fuse immediately blows out, there is a problem with
the electrical system. Have your Lexus dealer correct it as
soon as possible.
CHECKING THE CARTRIDGE TYPE
FUSES
CAUTION
SV64005
Never use a fuse with a higher amperage rating, or any
other object, in place of a fuse. This may cause
extensive damage and possibly a fire.
1 Good
2 Melted
If the headlights or other electrical components do not
work and the blade type fuses are O.K., check the
cartridge type fuses. If any of the cartridge type fuses are
blown, they must be replaced.
If there is an overload in the circuits from the battery, the fuses
are designed to blow before the entire wiring harness is
damaged.
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ELECTRICAL COMPONENTS
CAUTION
ADDING WASHER FLUID
Always use a genuine Lexus fuse or equivalent for
replacement. Never install an ordinary wire – even for
a temporary fix. This may cause extensive damage and
possibly a fire.
NOTICE
SS64013
Before replacing the fuses, have the cause of electrical
overload determined and repaired by your Lexus dealer.
If the washer tank becomes nearly empty, add washer
fluid.
You may use plain water as washer fluid. However, in cold
areas where temperatures range below the freezing point, use
washer fluid containing antifreeze. This product is available at
your Lexus dealer and most auto parts stores. Follow the
manufacturer’s directions for how much to mix with water.
NOTICE
Do not use engine antifreeze or any other substitute
because it may damage your vehicle’s paint.
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2003 IS300 from Aug. ’02 Prod. (OM53439U)
ELECTRICAL COMPONENTS
CHECKING THE HEADLIGHT AIM
SV64027
1 Vertical movement adjusting bolt 1
2 Vertical movement adjusting bolt 2
Adjusting the vertical aiming
SV64051
1. Turn the vertical movement adjusting bolt 1 in either
direction. At this time, keep the turning direction and number
of turns in mind.
Before checking the headlight aim:
1. Be sure that the body around the headlight is not deformed.
2. Park the vehicle on a level spot.
3. The driver gets into the driver’s seat and puts the vehicle in
a state readying for a driving (with a full tank).
4. Bounce the vehicle several times.
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ELECTRICAL COMPONENTS
REPLACING LIGHT BULBS
SB64028
The illustration on the following pages show the locations of
light bulbs. If it is necessary to replace a bulb, take your vehicle
to your Lexus dealer as soon as possible. Use bulbs with the
bulb numbers and wattage ratings given in the table.
CAUTION
To prevent burning yourself, do not replace the light
bulbs while they are hot.
2. Turn the vertical movement adjusting bolt 2 the same
number of turns and in the same direction at step 1.
Do not disassemble, repair or take apart the low beam
headlight bulbs, connector, power supply circuits
and rotated components. Or you may be injured by
electric shocks. Call your dealer when the headlights
fail to work or have to be replaced or disposed of.
Halogen bulbs have pressurized gas inside and
require special handling. They can burst or shatter if
scratched or dropped. Hold a bulb only by its plastic
or metal case. Do not touch the glass part of a bulb
with bare hands.
NOTICE
Only use a bulb of the listed type.
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ELECTRICAL COMPONENTS
The inside of the lens of exterior lights such as headlights may
temporarily fog up when the lens becomes wet in the rain or in
a car wash. This is not a problem because the fogging is
caused by the temperature difference between the outside and
inside of the lens, just like the windshield fogged up in the rain.
However, if there is a large drop of water on the inside of the
lens, or if there is water pooled inside the light, contact your
Lexus dealer.
LIGHT LOCATION
SV64032
Bulb No.
W
Type
1
Headlights (High beam)
Light Bulbs
HB3
60
A
2
Parking lights
168
5
E
3
Headlights (Low beam)
D2R
35
B
4
Front fog lights
–––
55
D
5
Front turn signal lights
–––
21
I
6
Front side marker lights
168
5
E
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2003 IS300 from Aug. ’02 Prod. (OM53439U)
ELECTRICAL COMPONENTS
SportCross
Sedan
SV64013
Light Bulbs
SV64026
Bulb No.
W
Type
Light Bulbs
Bulb No.
W
1
High mounted stop light
921
18
E
1
Tail/stop lights
7443
5/21
Type
E
2
License plate lights
168
5
E
2
Rear side marker lights
168
5
E
3
Tail/stop lights
Rear fog lights
7443
7440
5/21
21
E
E
3
Rear turn signal lights
–––
21
I
4
Back–up lights
921
18
E
4
Back–up lights
7440
21
E
5
5
Rear turn signal lights
–––
21
G
Tail/stop lights
Rear fog lights
7443
7440
5/21
21
E
E
6
Rear side marker lights
168
5
E
6
License plate lights
168
5
E
7
Tail/stop lights
7443
5/21
E
7
Luggage compartment light –––
5
F
8
Trunk light
194
3.8
H
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2003 IS300 from Aug. ’02 Prod. (OM53439U)
ELECTRICAL COMPONENTS
A: HB3 halogen bulbs
B: D2R discharge bulbs
C: HB4 halogen bulbs
D: H3 halogen bulbs
E: Wedge base bulbs
F: Double end bulbs
G:Single end bulbs (amber)
H: Single end bulbs
I: Wedge base bulbs (amber)
SV64012
Light Bulbs
Bulb No.
W
Type
Front personal lights
with moon roof
without moon roof
–––
–––
10
8
H
H
2
Vanity lights
–––
3
F
3
Glove box light
–––
1.2
F
4
Door courtesy lights
194
3.8
E
5
Interior light
–––
8
F
1
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2003 IS300 from Aug. ’02 Prod. (OM53439U)
ELECTRICAL COMPONENTS
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2003 IS300 from Aug. ’02 Prod. (OM53439U)
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