engine lexus LS400 1994 Electrical Components / 1994 LS400: ELECTRICAL COMPONENTS

ELECTRICAL COMPONENTS
Engine compartment
(fuses)
Driver’s side kick panel
(fuses and circuit breakers)
Driver’s side kick panel
218
SPECIFICATIONS
− FUSES AND CIRCUIT BREAKER LOCATIONS− FUSES AND CIRCUIT BREAKERS

ELECTRICAL COMPONENTS
Engine compartment
219

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
223 b. If the connections are loose, tighten the clamp bolts − but
do not overtighten.
c. Tighten the hold-down clamp only enough to keep the
battery firmly in place. Overtightening may damage the battery
case.
NOTICE:

Make sure the engine and all accessories are turned
off before performing maintenance.

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 batery when
washing it.
Blue
Red
White
2. Check the indicator as shown.
BLUE − Good condition.
RED − Add distilled water.
WHITE − Charging necessary.If the indicator is red, check the electrolyte level as shown.
a. When checking the electrolyte level, remove the vent plugs
and look at all six cells, not just one or two.
b. Replenish the battery with distilled water.
c. After replenishing, be sure to securely retighten the vent
plugs.
NOTICE:

Do not overfill the battery or the electrolyte may squirt
out of the battery during periods of heavy charging,
causing corrosion or damage.

In order to maintain full engine performance and to
make sure the cover fits the battery, when replacing
the battery use an Exide Group 27F CCA580A battery
or equivalent performance battery.

Use a cover on the battery for longer life.

ELECTRICAL COMPONENTS
224
BATTERY RECHARGING
PRECAUTIONS
During recharging, the battery is producing hydrogen
gas.
Therefore, before recharging:
1. Remove the vent plugs.
2. If recharging with the battery installed on the vehicle, be
sure to disconnect the ground cable.
3. Be 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 insufficient ventilation.
NOTICE:
Never recharge the battery while the engine is running.
Also, be sure all accessories are turned off.
CHECKING AND REPLACING THE
BLADE TYPE FUSES
Driver’s side kick panel
Engine compartment
Spare fuses
Pull-out tool
1. Turn the ignition switch off and open the fuse box lid.

ELECTRICAL COMPONENTS
230
5. Place the new wiper blade square to the wiper arm and push
it onto the wiper arm.
6. Slide the wiper blade back up until the lock clicks in place.
NOTICE:
Be careful not to scratch the glass surface with the wiper
frame.
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
manufacture’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.