1999 Lexus ES300 air conditioning

IN CASE OF AN EMERGENCY
320
When the engine overheats
Pull safely off the road, stop the vehicle and turn on your
emergency flashers. Put the transmission in ºPº and
apply the parking brake.
A: If steam is coming from your engine:
Turn off the engine. Leave the hood closed until there
is no sign of steam or coolant. Your engine could have
been seriously damaged already. Call your Lexus
dealer for assistance.
CAUTION
To help avoid personal injury, keep the hood closed until
there is no steam. Escaping steam or coolant is sign of
very high pressure.
B: If no steam is coming from your engine:
Leave the engine running and turn off the air
conditioning. Check the following.
 Is the cooling fan operating?
 Is the coolant in the acceptable range?
 Is the engine drive belt O.K.?

MAINTENANCE
356
DOES YOUR VEHICLE NEEDREPAIRING?
Be on the alert for changes in performance and sounds,
and visual tip±offs that indicate service is needed. Some
important clues are:

Engine missing, stumbling, or pinging

Appreciable loss of power

Strange engine noises

A fluid leak under the vehicle (However, water
dripping from the air conditioning after use is normal.)

Change in exhaust sound (This may indicate a
dangerous carbon monoxide leak. Drive with the
windows open and have the exhaust system checked
immediately.)

Flat±looking tires, excessive tire squeal when
cornering, uneven tire wear

Vehicle pulls to one side when driving straight on a
level road

Strange noises related to suspension movement

Loss of brake effectiveness, spongy feeling brake
pedal, pedal almost touches floors, vehicle pulls to
one side when braking

Engine coolant temperature continually higher than
normal If you notice any of these clues, take your vehicle to your
Lexus dealer as soon as possible. It probably needs
adjustment or repair.

ELECTRICAL COMPONENTS
412
No.FUSEAMPERECIRCUIT
1 ABS60Anti±lock brake system
2 DRL NO.25Daytime Running Light System
3 HEAD
LH (LWR)10Left±hand headlight (low beam)
4 HEAD
RH (LWR)10Right±hand headlight (low
beam)
5 ALT100Charging system
6 T±STK40No circuit
7 HTR50Air conditioning system, Seat
heater
8 MAIN40Headlight, Starting system
9 DOME7.5
Theft deterrent system, Clock,
Door courtesy light, Interior
light, Ignition switch light, Vanity
light, Wireless remote control
system
10 ECU±B10Air conditioning system,
Power seat system
11 RAD NO.120Audio system
12 HAZARD10Emergency flashers, Turn
signal lights

ELECTRICAL COMPONENTS
413
No.FUSEAMPERECIRCUIT
13 AM230Starting system
14 TEL5Telephone
15 HEAD
LH (UPR)15Left±hand headlight (high
beam)
16 ALT±S5Charging system
17 HEAD RH (UPR)15Right±hand headlight
(high beam)
18 EFI15Multiport fuel injection
19 HORN10Theft deterrent system
20 RDI30Electronic cooling fan
system
21 CDS30Air conditioning system
22 A/F HTR25Air fuel ration sensor
23 A/C10No circuit
24 SEAT±
HEATER20Seat heater system
25 HEATER10Air conditioning system
26 GAUGE10
Gauges and meters,
service reminder
indicators and warning
buzzers, Back±up light,
Door courtesy light, Seat
heater, Power window
system
No.FUSEAMPERECIRCUIT
27 WIPER25Windshield wipers and
washer
28 MIRROR± HTR10Outside rear view mirror
defogger
29 ECU±IG15
Cruise control system,
Anti±lock brake system,
Shift lock system, Theft
deterrent system,
Electronic modulated
suspension, Wireless
remote control
30 IGN5SRS, Multiport fuel
injection
31 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
32 TAIL10Tail light, Side marker
lights, License plate lights
33 POWER±OUTLET15Power outlet
34 OBD7.5On±board diagnosis
system
35 FOG15Fog lights

BODY
451
water or with lukewarm water.
Use a cloth or sponge. As you are cleaning, check the
belts for excessive wear, fraying or cuts.
NOTICE

Use a good foam±type shampoo to clean the
carpets.

Do not use dye or bleach on the belts ± it mayweaken them.

Do not use the belts until they become dry.

The windows may be cleaned with anyhousehold window cleaner.

When cleaning the inside of the rear window, be
careful not to scratch or damage the heater
wires.
Air Conditioning Control Panel, Car
Audio, Instrument Panel, Console Panel,
and Switches
Use a soft damp cloth for cleaning.
Soak a clean soft cloth in water or lukewarm water then
lightly wipe off any dirt.
NOTICE

Do not use organic substances (solvents,kerosene, alcohol, gasoline, etc.) or alkaline oracidic solutions. These chemicals can causediscoloring, staining or peeling of the surface.

If you use cleaners or polishing agents, makesure their ingredients do not include thesubstances mentioned above.

If you use a liquid car freshener, do not spill theliquid onto the vehicle's interior surfaces. Itmay contain the ingredients mentioned above.Immediately clean any spill using the method
mentioned above.
If you have any questions about the cleaning of your
Lexus, your local Lexus dealer will be pleased to
answer them.