2000 Lexus ES300 charging

GAUGES, METERS AND SERVICE REMINDER INDICATORS
63
(b) Seat Belt Reminder Light and Buzzer
This light and buzzer remind you to buckle up the driver's
seat belt.
Once the ignition key is turned to ªONº or ªSTARTº, the
reminder light and buzzer come on if the driver's seat
belt is not fastened. Unless the driver fastens the belt,
the light stays on and the buzzer stops after about 4 to
8 seconds.
(c) SRS Warning Light
This light comes on when the ignition key is turned
to the ªACCº or ªONº position. It goes off after
about 6 seconds. This means the SRS is operating
properly.
The SRS warning light system monitors the airbag
sensor assemblies, front airbag sensors, inflators, seat
belt pretensioners, warning light, interconnecting wiring
and power sources.
If either of the following conditions occurs, this indicates
a malfunction somewhere in the parts monitored by the
warning light system. Contact your Lexus dealer as
soon as possible to service the vehicle.
 The light does not come on as described above.
 The light stays on or flashes.
 The light comes on or starts flashing while driving.
If the light stays on, it indicates that the driver and front passenger airbags fail. If the light flashes, the side
airbags and/or seat belt pretensioners fail.
(d) Discharge Warning Light
This light warns that the battery is being discharged.
If it comes on while you are driving, stop the vehicle, turn
off the engine, and check for the cause. Look first at the
engine drive belt.

If it is loose or broken, the generator will not charge
the battery properly.
 If the belt is O.K., there is a problem somewhere in the
charging system.
The engine ignition will continue to operate, however,
until the battery is discharged. Turn off the air
conditioning, blower, radio, etc., and drive directly to the
nearest Lexus dealer or repair shop.
NOTICE
Do not continue driving if the engine drive belt is broken or loose.

STARTING AND DRIVING
293
(g) Good driving practice
If the transmission repeatedly shifts up and down
between the third and overdrive gears when climbing
a gentle slope, the overdrive should be turned off. Be
sure to turn the switch on immediately after climbing
the slope.
 When towing a trailer, in order to maintain efficient
engine braking and electrical charging performance,
do not use overdrive.
CAUTION
Always keep your foot on the brake pedal while stopped
with the engine running. This prevents the vehicle from
creeping.
NOTICE
Do not hold the vehicle on an upgrade with the accelerator pedal. This can cause thetransmission to overheat. Always use the brakepedal or parking brake.
(h) Rocking your vehicle if stuck
CAUTION
If your vehicle becomes stuck in snow, mud, sand, etc.,
then you may attempt to rock the vehicle free by moving
it forward and backward. Do not attempt this procedure
if people or objects are anywhere near the vehicle.
During the rocking operation the vehicle may suddenly
move forward or backward as it becomes un±stuck,
causing injury or damage to nearby people or objects.

DRIVING TIPS
329
wheels will be closer than the vehicle wheels to the
inside of the turn. Therefore, compensate for this by
making a larger than normal turning radius with your
vehicle.

Crosswinds and rough roads will adversely affect
handling of your vehicle and trailer, causing sway.
Pay attention to the rear from time to time to prepare
yourself for being passed by large trucks or buses,
which may cause your vehicle and trailer to sway. If
swaying happens, firmly grip the steering wheel and
reduce speed immediately but gradually. Never
increase speed. If it is necessary to reduce speed,
brake slowly. Steer straight ahead. If you make no
extreme correction with the steering or brakes, your
vehicle and trailer will stabilize.
 Be careful when passing other vehicles. Passing
requires considerable distance. After passing a
vehicle, do not forget the l ength of your trailer and be
sure you have plenty of room before changing lanes.
 In order to maintain efficient engine braking and
electrical charging performance, do not use
overdrive.
 Because of the added load of the trailer, your vehicle's
engine may overheat on hot days (at temperatures
over 30C [85F]) when going up a long or steep
grade with a trailer. If the engine coolant temperature
gauge indicates overheating, immediately turn off the
air conditioning (if in use), pull your vehicle off the
road and stop in a safe spot. See ªIf your vehicle
overheatsº on page 342 of this manual.
 Always place wheel blocks under both the vehicle
and trailer wheels when parking. Apply the parking
brake firmly. Put the transmission in ªPº. Avoid

IN CASE OF AN EMERGENCY
342(black) cable to a solid, stationary, unpainted
metallic point (e.g. cylinder head) away from the
battery. Do not connect it to or near any part that
moves when the engine is cranked.
CAUTION
When making the connections, to avoid serious injury,
do not lean over the battery or accidentally let the
jumper cables or clamps touch anything except the
correct battery terminals or the ground.
5. Start your engine in the normal way. After starting,
run it at about 2000 rpm for several minutes with the
accelerator pedal lightly depressed.
6. Carefully disconnect the cables in the exact reverse
order: the negative cable and then the positive cable.
7. Carefully dispose of the battery cover cloths which
may now contain sulfuric acid.
8. If removed, replace all the battery vent plugs.
If the cause of your battery discharging is not apparent
(for
example, lights left on), you should have it checked.IF YOUR VEHICLE OVERHEATS
If your engine coolant temperature gauge indicates
overheating, if you experience a loss of power, or if
you hear a loud knocking or pinging noise, the
engine has probably overheated.

ENGINE
395
± IGNITION SYSTEM
Spark plug ± Make DENSO NGK
± Gap
SK20R11
IFR6A11
1.1 mm (0.043 in.)
± ELECTRICAL SYSTEM
Battery ± Maintenance type battery Specific gravity reading at 20 C (68F):
Charging rates Quick charge Slow charge
± Non±maintenance battery Open voltage at 20C (68F):
Charging rates
1.260 Fully charged
1.160 Half charged
1.060 Discharged
15A max.
5A max.
12.7V Fully charged
12.3V Half charged
11.9V Discharged
[Voltage that is checked 20 minutes after the key is
removed with all the lights turned off]
5A max.

SECTION 6 ± 4
435
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications436
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition 443
. . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions 449
. . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses 450 . . . . .
Checking the cartridge type fuses 456
. . . . . . . . . . . . . . .
Adding washer fluid 459
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the headlight aim 459
. . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs 462
. . . . . . . . . . . . . . . . . . . . . . . . . .

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
441
*1: Vehicles with discharge headlight*2: Vehicles without discharge headlightNo.FUSEAMPERECIRCUIT
14 AM230Starting system
15 TEL5Telephone
16 HEAD
LH(UPR)20Left±hand headlight (high
beam)
17 ALT±S5Charging system
18 HEAD
RH(UPR)20Right±hand headlight
(high beam)
19 EFI15Multiport fuel injection
20 HORN10Theft deterrent system
21 RDI30Electronic cooling fan
system
22 CDS30Air conditioning system
23 A/F HTR25Air fuel ratio sensor
24 A/C10No circuit
25 SEAT
±HEATER20Seat heater system
26 HEATER10Air conditioning system
27 GAUGE10
Gauges and meters,
Service reminder
indicators and warning
buzzers, Back±up light,
Door courtesy light, Seat
heater, Power window
system