lights Lexus GS350 2009 Service Manual

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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
GS350
FuseAmpereCircuit
1ECU-B10VGRS, EPS, driver’s seat switch
module, Lexus link system ECU
2ABS MAIN325Electronically controlled
brake system
3TURN-HAZ15Turn signal lights, emergency flashers
4IG2 MAIN20IG2, GAUGE and IGN
5RAD NO.230Audio system
6D/C CUT20DOME and MPX-B
7RAD NO.130Audio system
8MPX-B10
Multiplex communication system,
front controller, door control system
(power door lock system, door cour-
tesy lights, power windows, power
rear view mirror control system, out-
side rear view mirror heaters), power
seat system, steering sensors, elec-
tronically controlled brake system, tilt
and telescopic steering wheel,
gauges and meters, combination
switch
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4-3. Do-it-yourself maintenance
GS_G_U (OM30B43U)
May 14, 2009 1:16 pm
FuseAmpereCircuit
9DOME10
Foot lights, vanity lights, gauges and
meters, steering spot light, steering
switch illumination, rear personal
lights, automatic transmission selec-
tor lever spot light, front personal
lights
10CDS10Noise filter
11ABS MAIN210Electronically controlled
brake system
12ABS MOTOR30ABS
13ABS MAIN110Capacitor
14E/G-B60FR CTRL BATT, ETCS, ALT-S and
A/F HTR
15ABS150VDIM
16RH J/B-B30AM2, DOOR FR and DOOR RR
17VGRS40VGRS
18MAIN30H-LP R LWR and H-LP L LWR
19STARTER30Starting system
20LH J/B-B30FL DOOR, RL DOOR and RAD
NO.3
21P/ I - B60EFI NO.1, F/PMP and INJ
22EPS80EPS
23ALT150
RH J/B-AM, LH J/B-AM, E/G-AM,
RR JB, HEATER, DEFOG, FAN1,
FAN2, ABS2, ABS MOTOR,
ABS MAIN1, and ABS MAIN2
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Maintenance and care
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
FuseAmpereCircuit
10IG210Ignition system, noise filter and ECT
ECU
11EFI NO.210
Fuel system, exhaust system, multi-
port fuel injection system/sequential
multiport fuel injection system, elec-
tronic engine control system, leak
detection pump
12H-LP R LWR15Headlight low beam (right)
13H-LP L LWR15Headlight low beam (left)
14F/ P M P25Fuel system
15EFI25
Multiport fuel injection system/
sequential multiport fuel injection
system, ECT ECU
16INJ25
Multiport fuel injection system/
sequential multiport fuel injection
system
17H-LP UPR15Headlight high beams
18HORN10Horns
19WA S H E R20Windshield wipers and washer
20FR TAIL10Parking lights, side marker light
21FR FOG15Front fog lights
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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
FuseAmpereCircuit
11H-LP R LWR15Headlight low beam (right)
12H-LP L LWR15Headlight low beam (left)
13F/ P M P25Fuel system
14EFI NO.125
Multiport fuel injection system/
sequential multiport fuel injection
system
15INJ20
Multiport fuel injection system/
sequential multiport fuel injection
system
16H-LP HI15Headlight high beams
17HORN10Horns
18WA S H E R20Windshield wipers and washer
19FR TAIL10Parking lights, side marker light
20FR FOG15Front fog lights
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Maintenance and care
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
■Right side instrument panel
FuseAmpereCircuit
1FR P/SEAT RH30Power seat system
2OBD7. 5On-board diagnosis system
3STOP SW7. 5
Stop/tail lights, multi-port fuel injec-
tion system/sequential multiport fuel
injection system, starting system,
electronically controlled brake sys-
tem, Enhanced VSC system, shift
lock system, ECT ECU
4AM17. 5
5TI&TE20Tilt and telescopic steering wheel,
multiplex communication system
6SECURITY7. 5Smart access system with push-but-
ton start
7STR LOCK25Steering lock system
8GAUGE7. 5Gauges and meters
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4-3. Do-it-yourself maintenance
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
FuseAmpereCircuit
9IGN10
Multi-port fuel injection system/
sequential multiport fuel injection
system, SRS airbag system, stop/tail
lights, steering lock system, electroni-
cally controlled brake system, Lexus
link system ECU, occupant classifica-
tion system ECU
10ACC7. 5
Multiplex communication system,
smart access system with push-but-
ton start, rear view monitor system,
audio system, air conditioning system,
Lexus link system ECU
11CIG15Cigarette lighter
12PWR OUTLET15Po w e r o u t l e t
13AIR SUS20Adaptive variable suspension system
14RR DOOR RH20
Rear right door control system
(power door lock system, door cour-
tesy light, power window)
15FR DOOR RH20
Front right door control system
(power door lock system, power rear
view mirror control system, door
courtesy light, outside rear view mir-
ror heater, power window), multiplex
communication system
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4-3. Do-it-yourself maintenance
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
■Luggage compartment
FuseAmpereCircuit
1RR S/SHADE7. 5Rear sunshade
2PSB30Pre-collision seat belt
3RR-IG210
4RR-IG110Pre-collision seat belt, seat belt pre-
tensioners, A/P UNIT, rear sunshade
5RR-B10Trunk light, noise filter
6RR FOG7. 5
7STOP LP L10Stoplights, back-up light
8STOP LP R10High mounted stoplights
9RR TAIL10Tail lights, license plate lights, rear
side marker lights
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Maintenance and care
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
■Luggage compartment
(vehicles with active stabilizer suspension system)
FuseAmpereCircuit
1STB FR50Front stabilizer
2STB RR30Rear stabilizer
3STB DC/DC30DC/DC converter
■After a fuse is replaced
●If the lights do not turn on even afte r the fuse has been replaced, a bulb may
need replacement. ( →P. 488)
●If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
■If there is an overload in the circuits
The fuses are designed to blow before the entire wiring harness is damaged.
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4-3. Do-it-yourself maintenance
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
■Bulbs other than the above
If any of the bulbs listed below has burnt out, have your Lexus dealer
replace it.
●Headlight low beams (high-intensity discharge bulbs)
● Fog lights
● Front turn signal lights
● Front side marker lights
● Side turn signal lights
● Tail/stop lights
● Tail lights
● Rear side marker lights
● High mounted stoplight
● License plate lights
■Condensation build-up on the inside of the lens
Contact your Lexus dealer for more inform ation in the following situations. Tempo-
rary condensation build-up on the inside of the headlight lens does not indicate a
malfunction.
●Large drops of water are built up on the inside of the lens.
●Water has built up inside the headlight.
■LED light bulbs
The side turn signal lights, rear side marker lights, tail lights, tail/stop lights and high
mounted stoplights consist of a number of LEDs. If any of the LEDs burn out, take
your vehicle to your Lexus dealer to have the light replaced.
If two or more LEDs in a stoplight burn out, your vehicle may not conform to local
laws (SAE).
■High-intensity discharge (HID) headlights
If voltage to the high-intensity discharge bulbs is insufficient, the light may not come
on, or may go out temporarily. The high -intensity discharge bulbs will come on
when normal power is restored.
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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately after turn-
ing off the headlights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with ba re hands. Hold the bulb by
the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failing to do so may
result in heat damage, fire, or water en tering the headlight unit. This may damage
the headlights or cause condensation to build up on the lens.
●Do not attempt to take apart or repair the low beam discharge headlight bulbs,
connectors, power supply circuits, or related components.
Doing so could result in electric shock and death or serious injury.
■High-intensity discharge (HID) headlights
●Contact your Lexus dealer before replac ing high-intensity discharge headlights
(including light bulbs).
●Do not touch the high-intensity discharg e headlight’s high voltage socket when
the headlights are turned on.
An extremely high voltage of 20000 V wi ll be discharged and could result in
death or serious injury by electric shock.
■To prevent damage or fire
Make sure bulbs are fully seated and locked.
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