2000 Lexus ES300 ECU

IN CASE OF AN EMERGENCY
357
40E012
9. Lower the vehicle completely and tighten the
wheel nuts.
Turn the jack handle counterclockwise to lower the
vehicle.
Use only the wheel nut wrench to tighten the nuts. Do
not use other tools or any additional leverage other than
your hands, such as a hammer, pipe or your foot. Make
sure the wrench is securely engaged over the nut.
Tighten each nut a little at a time in the order shown.
Repeat the process until all the nuts are tight.

IN CASE OF AN EMERGENCY
359
10. After
changing the wheel, check the air pressure
of the replaced tire. Stow all the tools, jack and flat
tire securely.
If the pressure of the replaced tire is low, drive slowly to
the nearest service station and fill to the correct
pressure.
Do not forget to reinstall the tire valve cap as dirt and
moisture could get into the valve core and possible
cause air leakage. If the cap is missing, put a new one
on as soon as possible.
This is the same procedure for changing or rotating your
tires.
CAUTION
Before driving, make sure all the tools, jack and flat tire
are securely in place in their storage location to reduce
the possibility of personal injury during a collision or
sudden braking.

IN CASE OF AN EMERGENCY
367
If towing is necessary, we recommend you to have
it done by your Lexus dealer or a commercial tow
truck service.
If towing service is not available in an emergency,
your
vehicle may be temporarily towed by a cable or
chain secured to the emergency towing eyelet. Use
extreme caution when towing the vehicle.
NOTICE
Only use specified towing eyelet; otherwise your
vehicle may be damaged.
A driver must be in the vehicle to steer it and operate the
brakes. Towing in this manner may be done only on
hard±surfaced roads for a short distance and at low
speeds. Also, the wheels, axles, drive train, steering
and brakes must all be in good condition.

IN CASE OF AN EMERGENCY
368
CAUTION
Use extreme caution when towing the vehicle. Avoid
sudden starts or erratic driving maneuvers which would
place excessive stress on the emergency towing eyelet
and towing cable or chain. The eyelet and towing cable
or chain may break and cause serious injury or damage.
NOTICE
Use only a cable or chain specifically intended for use in towing vehicles. Securely fasten the cableor chain to the towing eyelet provided.
Before towing, release the parking brake and put the
transmission in ªNº. The ignition key must be in ªACCº
(engine off) or ªONº (engine running).
CAUTION
If the engine is not running, the power assist for the
brakes and steering will not work so steering and
braking will be much harder than usual.

MAINTENANCE
376
GENERAL MAINTENANCE
Listed below are the general maintenance items that
should be performed at the intervals specified. It is
recommended that any problem you notice be brought
to the attention of your Lexus dealer or qualified service
shop for their advice.
CAUTION
Make these checks only where adequate ventilation can
be obtained if you run the engine.
Vehicle exterior
Items listed below should be performed from time to
time, unless otherwise specified.
Tire pressure
Check the pressure with a gauge every two weeks, or at
least once a month and adjust as shown on the tire
pressure label. See page 423 for a dditional information.
Tire surface
Check the tires carefully for cuts, damage or excessive
wear. See page 425 for additional information.
Wheel nuts
When checking the tires, make sure to check the nuts for
looseness. Tighten them if necessary. Tire rotation
Rotate
the tires every 12000 km (7500 miles). See page
424 for additional information.
Fluid leaks
Check underneath for leaking fuel, oil, water or other
fluid after the vehicle has been parked for a while. If you
smell fuel fumes or notice any leak, have the cause
found and corrected immediately.
Doors and engine hood
Check that all doors, including trunk lid, operate
smoothly and all latches lock securely. Make sure the
engine hood secondary latch secures the hood when the
primary latch is released.

MAINTENANCE
377
Vehicle interior
Items listed below should be checked regularly, e.g.
while performing periodic services, cleaning the
vehicle, etc.
Lights
Make sure the headlight, stop lights, tail lights, turn
signal lights, and other lights are working. Check
headlight aim.
Service reminder indicators and warning buzzers
Check that all service reminder indicators and warning
buzzers function properly.
Steering wheel
Check that it has the specified freeplay. Be alert for
changes in steering condition, such as hard steering,
excessive freeplay or strange noise.
Seats
Check that all front seat controls such as seat adjusters,
seatback recliner, etc. operate smoothly. Check that the
head restraints move up and down smoothly and that the
locks hold securely in any latched position.
Seat belts
Check that the seat belt system such as buckles,
retractors and anchors operate properly and smoothly.
Make sure the belt webbing is not cut, frayed, worn or
damaged. Accelerator pedal
Check
the pedal for smooth operation and uneven pedal
effort or catching.
Brake pedal
Check the pedal for smooth operation and the proper
clearance and freeplay. Check the brake booster
function.
Brakes
At a safe place, check that the brakes do not pull to one
side when applied.
Parking brake
Check that the pedal has the proper travel and that, on
a safe incline, your vehicle is held securely with only the
parking brake applied.
Automatic transmission ªParkº mechanism
Check the lock release button of the selector lever for
proper and smooth operation. On a safe incline, check
that your vehicle is held securely with the selector lever
in ªPº position and all brakes released.

ELECTRICAL COMPONENTS
440
No.FUSEAMPERECIRCUIT
1 ABS60Anti±lock brake system
2 INJ20No circuit
3 DRL NO.25Daytime Running Light System
4H±LP15*1Left±hand headlight (low beam)4 HLPLH(LWR)10*2
5H±LP15*1Right±hand headlight (lowbeam)5 HLPRH(LWR)10*2beam)
6 ALT100Charging system
7 T±STK30No circuit
8 HTR50Air conditioning system, Seat
heater
9 MAIN40Headlight, Starting system
10 DOME7.5
Theft deterrent system, Clock,
Door courtesy light, Interior
light, Ignition switch light, Vanity
light, Wireless remote control
system
11 ECU±B10Air conditioning system,
Power seat system
12 RADIO
NO.120Audio system
13 HAZARD15Emergency flashers, Turn
signal lights

ELECTRICAL COMPONENTS
442
No.FUSEAMPERECIRCUIT
28 WIPER25Windshield wipers and
washer
29 MIRROR
±HEATER10Outside rear view mirror
defogger
30 ECU±IG15
Cruise control system,
Anti±lock brake system,
Shift lock system, Theft
deterrent system,
Electronic modulated
suspension, Wireless
remote control
31 IGN5SRS, Multiport fuel
injection
32 STOP15
Stop lights, High mounted
stoplight, Cruise control
system, Electronic
modulated suspension,
Anti±lock brake system,
Shift lock system, Power
seat system, Multiport
fuel injection
33 TAIL10Tail light, Side marker
lights, License plate lights
34 POWER
±OUTLET15Power outlet
35 OBD7.5On±board diagnosis
system
36 FOG15Fog lights
No.FUSEAMPERECIRCUIT
37 STARTER5Starting system
38 DOOR25
Door courtesy light, Theft
deterrent system, Power
door lock system, Trunk
lid opener, Fuel filler door
opener
39 PANEL7.5Instrument panel lights,
Glove box light
40 TURN7.5Emergency flashers, Turn
signal lights
41 RAD± NO.27.5Audio system
42 CIG15Cigarette lighter, Clock,
SRS
43 DEF40Rear window defogger,
Outside rear view mirror
defogger
44 PWR30Power window, Electronic
moon roof, Power seat
system
45 AM140No circuit
SPARESpare fuse