heater lexus LS400 1994 Engine / 1994 LS400: ELECTRICAL COMPONENTS

ELECTRICAL COMPONENTS
220
NO.FUSEAMPERECIRCUIT
1STOP25Stop lights, cruise control
system cancel device
2FOG15Fog lights
3ECU-B15
SRS, Lexus ride control system,
anti-lock brake system, cruise
control system
4RADIO7.5
Radio, cassette tape player,
compact disc player, power
antenna, power rear view
mirrors, air conditioning system
5CIG15Cigarette lighter, theft deterrent
system, shift lock system, SRS
6MIR-HTR10Outside rear view mirror
defogger
7GAUGE10
Gauges and meters, service
reminder indicators and warning
buzzers (except discharge and
open door warning lights),
back-up lights, electronically
controlled automatic transmission
system, automatic transmission
overdrive system, power
windows, seat belt warning lights
8ENGINE7.5Charging system
NO.FUSEAMPERECIRCUIT
9ECU-IG15
Cruise control system, power
steering control system, shift lock
system, anti-lock brake system,
power door lock system, Lexus
ride control system, automatic
light control system
10TURN7.5Turn signal lights
11HEATER15
Air conditioning system, rear
window defogger, electronic
cooling fan system
12WIP20Windshield wipers and
washer, headlight cleaner
13TAIL15
Tail lights, parking lights,
side marker lights, license
plate lights
14PANEL7.5
Instrument panel lights, air
conditioning control system,
clock, instrument panel lights,
glovebox light for light system
15IGN10
Discharge warning light,
sequential rnultiport fuel
injection system, electronic
cooling fan system, SRS
16ST7.5
Starting system, cruise
control system, multiport
fuel injection system,
instrument panel lights
17TRAC15Traction control system

ELECTRICAL COMPONENTS
221
NO.FUSEAMPERECIRCUIT
18RADIO
NO. 120Radio, cassette tape player,
compact disc player, power antenna
19HAZ-HORN15Emergency flashers, horns
20DOME10
Interior light, personal lights, door
courtesy lights, ignition switch light,
open door warning light, trunk
room light, electric moon roof
system, radio cassette tape player,
compact disc player, preset
steering system, seat belt warning
system, air conditioning system,
inside rear view mirror, door lock
and theft deterrent system foot
light, power rear view mirror,
locking, with wireless remote
control system, automatic light
control system
21TEL15Telephone
22EFI20Multiport fuel injection system
23SEAT HTR20Seat heater
24AIRSUS20Lexus ride control system, height
control system
25DRL10Vehicles sold in Canada
Daytime Running Light System
26
HEAD LH15Vehicles sold in U.S.A.
Left-hand headlight
HEAD
LH-LWR10Vehicles sold in Canada
Left-hand headlight (low beam)
NO.FUSEAMPERECIRCUIT
27
HEAD RH15Vehicles sold in U.S.A.
Right-hand headlight
HEAD
RH-LWR10Vehicles sold in Canada
Right-hand headlight (low beam)
28HEAD
LH-UPR15Vehicles sold in Canada
Left-hand headlight (high beam)
29HEAD
RH-UPR15Vehicles sold in Canada
Right-hand headlight (high beam)
NO.CIRCUIT
BREAKERAMPERECIRCUIT
30P/W30
Preset steering, power shoulder
anchor, electric moon roof, power
windows
31DOOR30
Theft deterrent system, seat
control system, fuel opener
control system
32DEFOG40Rear window defogger

ELECTRICAL COMPONENTS
225 Determine which fuse may be causing the problem. The lid of
the fuse box shows the name of the circuit for each fuse.
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.
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.
GoodBlown
If you do not have a spare fuse, in an emergency you can pull
out the “CIG”, “RADIO”, “DOME” or “HEATER” 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.
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 another
object, in place of a fuse. This may cause extensive
damage and possibly a fire.