Page 1 of 18
217
SECTION 6 ± 4
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications 218
Checking battery operation 222
Battery recharging precautions 226
Checking and replacing the blade type fuses 227
Checking the cartridge type fuses 229
Adding washer fluid 230
Checking the headlight aim 231
Replacing light bulbs 232
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ELECTRICAL COMPONENTS
218
SPECIFICATIONS
± FUSE LOCATIONS
Engine compartment
Engine compartment (Canada only)
Driver's side instrument panel
± FUSES
Engine compartment
Engine compartment (Canada only)
Page 4 of 18

ELECTRICAL COMPONENTS
220No.
FUSEAMPERECIRCUIT
1ABS60Anti±lock brake system
2DRL NO. 25Vehicles sold in Canada
Daytime Running Light System
3H±LP
LH (LO)10Vehicles sold in Canada
Left-hand headlight (low beam)
4H±LP
RH (LO)10Vehicles sold in Canada
Right±hand headlight (low beam)
5ALT100Charging system
6CDS NO.230No circuit
7HTR30No circuit
8MAIN40Headlight, Starting system
9DOME7.5
Theft deterrent system, Clock,
Door courtesy light, Interior light,
Ignition switch light, Vanity light,
Wireless remote control system
10ECU±B10Cruise control system, Air
conditioning system, Power seat
system
11RAD NO.120Audio system
12HAZ10Emergency flashers, Turn signal
lights
13AM230Starting system
No.FUSEAMPERECIRCUIT
14TEL5Telephone
15
H±LP LH15Vehicles sold in U.S.A.
Left±hand headlight (high beam)
15H±LP
LH HI15Vehicles sold in Canada
Left±hand headlight (high beam)
16ALT±S5Charging system
17
H±LP RH15Vehicles sold in U.S.A.
Right±hand headlight (high beam)
17H±LP RH
HI15Vehicles sold in Canada
Right±hand headlight (high beam)
18EFI15Multiport fuel injection
19HORN10Theft deterrent system
20RDI FAN30Electronic cooling fan system
21CDS30Air conditioning system
22A/C10No circuit
23S±HTR20Seat heater system
24HTR10Air conditioning system
25GAUGE10
Gauges and measures, service
reminder indicators and warning
buzzers, Back±up light, Door
courtesy light, Seat heater, Power
window system
26WIP20Windshield wipers and washer
Page 5 of 18

ELECTRICAL COMPONENTS
221 No.
FUSEAMPERECIRCUIT
27M/HTR10Outside rear view mirror defogger
28ECU±IG15
Cruise control system, Anti±lock
brake system, Shift lock system,
Power brake antenna, Theft
deterrent system, Electronic
modulated suspension, Wireless
remote control
29IGN5SRS airbag system, Multiport fuel
injection
30STOP15
Stop lights, High mounted
stoplight, Cruise control system,
Electronic modulated suspension,
Anti±lock brake system, Shift
lock system, Power seat system,
Multiport fuel injection
31TAIL10Tail light, Side marker lights,
License plate lights
32PWR
OUTLET15Power outlet
33OBD7.5On±board diagnosis system
34FOG15Fog lamps
35ST5Starting system
36DOOR25
Door courtesy light, Theft
deterrent system, Power door
lock system, Trunk lid opener,
Fuel filler door opener
No.FUSEAMPERECIRCUIT
37PANEL7.5Instrument panlel lights,
Glovebox light
38TURN7.5Emergency flashers, Turn signal
lights
39RAD NO.27.5Audio System
40CIG15Cigarette lighter, Clock, SRS
airbag system, Theft deterrent
system
41DEF40Rear window defogger, Outside
rear view mirror defogger
42PWR30Power window, Electronic moon
roof, Power seat system
43AM140Power window, Electronic moon
roof, Power seat system
SPARESpare fuse
Page 11 of 18
ELECTRICAL COMPONENTS
227
CHECKING AND REPLACING THE
BLADE TYPE FUSES
Engine compartmentPull±out tool
Spare fuses
Driver's side instrument panel
1. Turn the ignition switch off and remove the
auxiliary box.
Determine which fuse may be causing the problem. The
auxiliary box shows the name of the circuit for each fuse.
Page 12 of 18

ELECTRICAL COMPONENTS
228
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.
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. Only install 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 ªRAD NO.1º, ªRAD NO.2ºª or ªPWR OUTLETº 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 the 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.
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.
CAUTION!
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.
Page 13 of 18
ELECTRICAL COMPONENTS
229
CHECKING THE CARTRIDGE TYPE
FUSES
Engine compartment
Driver's side instrument panel
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.
Page 14 of 18
ELECTRICAL COMPONENTS
230
Type A Type B GoodBlown
If there is an overload in the circuits from the battery, the
fuses are designed to blow before the entire wiring harness
is damaged.
NOTICE
Before replacing the fuses, have the cause of
electrical overload determined and repaired by your
Lexus dealer.
CAUTION!
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.
ADDING WASHER FLUID
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.