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

SECTION 6 – 4
217
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition and fluid level222 . . . . . . . . . . . . . . . . . . .
Battery recharging precautions224 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses224 . . . . . . . . . . . . . . . .
Checking the circuit breakers226 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the cartridge type fuses226 . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the windshield wiper blades227 . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs231 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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
227
REPLACING THE WINDSHIELD
WIPER BLADES
When the wipers no longer clean adequately, the wiper
blades may be worn or cracked, and require replacement.
Replacing driver’s side wiper blade
1. Turn the ignition switch on. Turn the wiper switch to the “LO”
position.
2. Quickly turn the ignition switch to the “ACC” position as soon
as the wiper on the driver’s side comes to the edge of the
windshield on the driver’s side.
3. Use a screwdriver to release the lock joining the wiper arm
and blade.
4. Slide the wiper blade downward to separate it from the wiper
arm.
5. Remove the wiper blade.

ELECTRICAL COMPONENTS
228
6. Install a new wiper blade to the wiper arm.
7. Slide the wiper blade upward fully to the wiper arm.
8. Firmly close the lock joining the wiper arm and blade.
9. Lower the wiper blade down with your hand. Return the
wiper blades to set position.
NOTICE:
Be careful not to scratch the glass surface with the wiper
frame.

ELECTRICAL COMPONENTS
229
Replacing passenger side wiper blade
1. Turn the ignition switch on. Turn the wiper switch to the “LO”
position.
2. Quickly turn the ignition switch to the “ACC” position as soon
as the wiper on the driver’s side comes to the edge of the
windshield on the driver’s side.
3. Press on the lock pin at the rear side where the wiper arm
and blade connect, and slide the wiper blade downward to
disconnect it.
4. Place the wiper blade square to the wiper arm and then pull
the wiper blade straight off.

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.