Lexus GX470 2004 Audio System / LEXUS 2004 GX470 FROM NOV. 2003 THROUGH DEC. 2003 PROD. OWNER'S MANUAL (OM60A74U)

ELECTRICAL COMPONENTS
584
13MIR
HEATER10Outside rear view mirror
defogger
14STOP10
Stop lights, high mounted
stoplight, shift lock control
system, vehicle stability control
system, electronic modulated
suspension, rear height control
air suspension, multiport fuel
injection system/sequential
multiport fuel injection system
15AC115V
INV15Power outlet (115 VAC)
16FR FOG15Front fog lights
17OBD7.5On- board diagnosis system
18HEAD
(LO RH)10Right-hand headlight (low beam)
19HEAD
(LO LH)10Left-hand headlight (low beam)
20HEAD
(HI RH)10Right-hand headlight (high
beam)
21HEAD
(HI LH)10Left-hand headlight (high beam)
22EFI NO.210Multiport fuel injection
system/sequential multiport fuel
injection system
23HEATER
NO.27.5Air conditioning system
24DEFOG30Rear window defogger
No.FUSEAMPERECIRCUIT

ELECTRICAL COMPONENTS
585
25AIRSUS
NO.210Rear height control air
suspension
26SEAT
HEATER20Seat heaters
27DOME10
Ignition switch light, interior
lights, personal lights, foot
lights, running board lights,
door courtesy lights, inside
door handle lights,
multi- information display
28RADIO
NO.120Car audio system, navigation
system
29ECU-B10
Multiplex communication
system, vehicle stability control
system, wireless remote
control system, inside rear
view mirror, air conditioning
system, electronic modulated
suspension, driving position
memory system, power
windows, moon roof, rear view
monitor system
30ECU-B
NO.210Theft deterrent system
31ABS
MTR40
Anti- lock brake system,
vehicle stability control system,
active traction control system,
brake assist system
32AM230Starting system, all components
in IGNº, SRSº, GAUGEº and
ST2º fuses
No.FUSEAMPERECIRCUIT

ELECTRICAL COMPONENTS
586
33ABS
SOL50
Anti- lock brake system,
vehicle stability control system,
active traction control system,
brake assist system
34ALT-S7.5Charging system
35MAYDAY7.5Lexus link system
36HORN10Horns
37TRN-HAZ15Turn signal lights
38ETCS10Electronic throttle control system
39EFI20Multiport fuel injection
system/sequential multiport fuel
injection system
40D FR P/W20Power window
41DR/LCK25Power door lock
42TOWING30Towing converter
43RADIO
NO.230Car audio system, navigation
system
44IGN10
Multiport fuel injection
system/sequential multiport fuel
injection system, vehicle
stability control system
45SRS10SRS airbag system
46GAUGE7.5Gauges and meters
47ST27.5Multiport fuel injection
system/sequential multiport fuel
injection system
No.FUSEAMPERECIRCUIT

ELECTRICAL COMPONENTS
587
48FR
WIP-WSH30Windshield wipers, windshield
washer
49TEMS20Electronic modulated
suspension
50DIFF20Four-wheel drive system
51RR WIP15Rear window wiper
52D P/SEAT30Driver's power seat
53P P/SEAT30Front passenger's power seat
54PWR
OUTLET15Power outlet (12 VDC)
55IG1 NO.210Rear air conditioning system,
inside rear view mirror, kinetic
dynamic suspension system
56RR WSH15Rear window washer
57ECU-IG10
Shift lock control system, power
windows, outside rear view
mirror defogger, anti-lock brake
system, active traction control
system, vehicle stability control
system, air conditioning system,
navigation system, power
windows, moon roof, Lexus link
system, tilt and telescopic
steering, multi- information
display, driving position
memory system, rear view
monitor system, tire pressure
warning system
No.FUSEAMPERECIRCUIT

ELECTRICAL COMPONENTS
588
58IG110
Air conditioning system, back-up
lights, rear window defogger,
seat heaters, vehicle stability
control system
59STA7.5Multiport fuel injection
system/sequential multiport fuel
injection system
60P FR P/W20Front passenger's power window
61P RR P/W20Rear right side power window
62D RR P/W20Rear left side power window
63PANEL10Instrument panel lights
64TAIL10Parking lights, tail lights, license
plate lights, front fog lights
65ACC7.5
Shift lock control system, power
outlets, outside rear view
mirrors, car audio system,
navigation system, power rear
view mirrors, multi- information
display, rear view monitor
system
66CIG10Cigarette lighter
67POWER
OR TI&TE30Power windows, moon roof, tilt
and telescopic steering

ELECTRICAL COMPONENTS
589
CHECKING BATTERY CONDITION
Precautions
CAUTION
BATTERY PRECAUTIONS
The battery produces flammable and explosive
hydrogen gas.
Do not cause a spark by contacting the battery
terminals with tools.
Do not smoke or light a match near the battery.
The electrolyte contains poisonous and corrosive
sulfuric acid.
Avoid contact with eyes, skin or clothes.
Never inhale or swallow electrolyte.
Wear protective safety glasses when working near
the battery.
Keep children away from the battery.
EMERGENCY MEASURES
If electrolyte gets in your eyes, flush your eyes with
clean water for at least 15 minutes and get immediate
medical attention. If possible, continue to apply
water with a sponge or cloth while traveling to the
medical office.

ELECTRICAL COMPONENTS
590
If electrolyte gets on your skin, thoroughly wash the
contacted area. If you feel a pain or burn, get medical
attention immediately.
If electrolyte gets on your clothes, there is a
possibility of its soaking through to your skin, so
immediately take off the exposed clothing and follow
the procedure above, if necessary.
If you accidentally to swallow electrolyte, drink a
large quantity of water or milk. Follow with milk of
magnesia, beaten raw egg or vegetable oil. Then go
immediately for emergency help.

ELECTRICAL COMPONENTS
591
Checking battery exterior
1Terminals2Hold-down clamp
Check the battery for corroded or loose connections,
cracks, or loose hold-down clamps.
1. If the battery is corroded, wash it off with a solution of warm
water and baking soda. Coat the terminals with grease to
prevent further corrosion.
2. If the connections are loose, tighten the clamp bolts Ð but
do not overtighten.
3. Tighten the hold-down clamp only enough to keep the
battery firmly in place. Overtightening may damage the battery
case.

ELECTRICAL COMPONENTS
592
NOTICE
Make sure the engine and all accessories are turned
off before performing maintenance.
When checking the battery, 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 battery when
washing it.
If the battery is disconnected or run down
The power windows and moon roof may not operate
automatically and the jam protection function will not function
correctly after you reconnect, replace or recharge the battery.
In any of these cases, you should normalize the power
windows and moon roof. To normalize the power windows and
moon roof, see pages 47 and 108.
Checking battery condition
Check the battery condition by the indicator color.
1BLUE Ð Good condition.
2WHITE Ð Charging necessary. Have the battery
checked by your Lexus dealer.
3RED Ð Have the battery checked by your Lexus dealer.

ELECTRICAL COMPONENTS
593
NOTICE
Do not refill the battery with water.