lights Lexus ES350 2010 Do-It-Yourself Maintenance

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4-3. Do-it-yourself maintenance
12ALT140 A
PSB, H-LP CLN, P-P/SEAT, RR DEF,
ABS NO.2, FAN MAIN, ABS NO.1,
HTR, RR FOG, RR DOOR RH, RR
DOOR LH, FUEL OPN, FR FOG,
OBD, STOP, TI & TE, A/C, PWR,
DOOR NO.2, S/ROOF, GAUGE
NO.2, POWER, P/SEAT
13STR LOCK20 ASteering lock system
14IG220 A
GAUGE NO.2, IGN, multiport fuel
injection system/sequential multiport
fuel injection system
15HAZ15 ATurn signal lights
16ETCS10 AElectronic throttle control system
17E-ACM10 AElectric active control mount
18A/C CTRL PNL15 AAir conditioning system
19MAYDAY10 AMayday system
20ALT-S7. 5 ACharging system
21AM27. 5 AStarting system
22EFI MAIN30 AEFI NO.2, EFI NO.3, fuel system, ECT
system
23AMP30 AAudio system
24AMP230 AAudio system
25DOOR NO.125 APower door lock system
26RADIO NO.115 AAudio system
27ECU-B NO.110 AECU powers
28DOME10 AInterior lights, meters, vanity lights
29H-LP (LH)15 ALeft-hand headlight (high beam)
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
■Driver’s side instrument panel
FuseAmpereCircuit
1RR DOOR RH25 APo w e r w i n d o w
2RR DOOR LH25 APo w e r w i n d o w
3FUEL OPN7. 5 AFuel filler door opener
4FR FOG15 AFront fog lights
5OBD7. 5 AOn-board diagnosis system
6ECU-B NO.27. 5 AECU powers
7STOP10 AStop lights
8TI & TE30 ATilt and telescopic steering
9A/C7. 5 AAir conditioning system
10PWR25 APo w e r w i n d o w s
11DOOR NO.225 AMain body ECU
12S/ROOF30 AMoon roof
13TA I L10 AFront and rear side marker lights, tail
lights, license plate lights
14PA N E L7. 5 ASwitch illumination

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4-3. Do-it-yourself maintenance
4
Maintenance and care
15ECU-IG NO. 110 A
Moon roof, seat heaters, power win-
dows, clock, automatic windshield
wiper, electric cooling fans, driving
position memory system, seat position
memory system
16ECU-IG NO. 27. 5 A
Anti-lock brake system, vehicle stabil-
ity control system, traction control sys-
tem, brake assist system, cruise
control system, stop lights, shift lock
control system
17A/C NO. 210 AAir conditioning system, rear window
defogger
18WA S H10 AWindshield washer
19S-HTR20 ASeat heaters, air conditioning system
20GAUGE NO. 110 AEmergency flashers, back-up lights,
rear sunshade, charging system
21WIP25 AWindshield wipers
22H-LP LVL7. 5 AHeadlight leveling system
23IGN10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, SRS airbag system, steering lock
system
24GAUGE NO. 27. 5 AMeters
25ECU-ACC7. 5 AClock, main body ECU
26CIG20 ACigarette lighter
27PWR OUTLET20 APo w e r o u t l e t
28RADIO NO. 27. 5 AAudio system
29MIR HTR15 AOutside rear view mirror defoggers
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
30POWER30 APo w e r w i n d o w
31P/ S E AT30 APo w e r s e a t
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (→
P. 4 1 9)
●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.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
●Do not modify fuses or the fuse box.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
4
Maintenance and care
Headlight aim (vehicles with discharge headlights)
■Vertical movement adjusting bolts
Adjustment bolt A
Adjustment bolt B
■Before checking the headlight aim
Make sure the vehicle has a full tank of gas and the area around
the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
■Adjusting the headlight aim
Remove the engine compartment cover. (→P. 3 76)
Turn bolt A in either direction
using a Phillips-head screw
-
driver.
Remember the turning direction
and the number of turns in mind.
STEP1
STEP2
STEP3
STEP4
STEP1
STEP2

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4-3. Do-it-yourself maintenance
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Maintenance and care
Light bulbs
You may replace the following bulbs yourself. For more information about
replacing other light bulbs, contact your Lexus dealer.
■Prepare a replacement light bulb.
Check the wattage of the light bulb being replaced. (→P. 4 9 7 )
■Front bulb locations
■Rear bulb locations
Headlight high beam
Headlight
low beam
(halogen
bulb)
Front turn signal light
Front side
marker light
Rear turn signal lightStop/tail light
Rear side marker light
Back-up light
Tail light

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4-3. Do-it-yourself maintenance
4
Maintenance and care
■Front side marker lights and front turn signal lights
Remove the access hole cover.
Front side marker light
Front turn signal light
Turn the bulb base counterclock-
wise.
Front side marker light
Remove the light bulb.
STEP1
STEP2
STEP3

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4-3. Do-it-yourself maintenance
4
Maintenance and care
■Back-up lights and tail lights
Open the trunk lid and remove the
trunk panel cover clips.
Partly remove the trunk panel
cover and turn the bulb bases
counterclockwise.
Tail light
Back-up light
Remove the light bulb.
Tail light
Back-up light
STEP1
STEP2
STEP3

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4-3. Do-it-yourself maintenance
■Stop/tail, rear turn signal and rear side marker lights
Open the trunk lid and remove the
access hole cover.
Stop/tail light
Rear turn signal light
Rear side marker light
Turn the bulb base counterclock-
wise.
Stop/tail light
Remove the light bulb.
STEP1
STEP2
STEP3

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4-3. Do-it-yourself maintenance
■Bulbs other than the above
If any of the bulbs listed below has burnt out, have your Lexus dealer
replace it.
●Headlight low beams (discharge bulbs)
●Parking lights
●Front fog lights
●Side turn signal lights
●High mounted stoplight
●License plate lights
■Condensation build-up on the inside of the lens
Contact your Lexus dealer for more information 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.
■Discharge headlights
If voltage to the discharge bulbs is insufficient, the bulbs may not come on, or may
go out temporarily. The discharge bulbs will come on when normal power is
restored.
■LED light bulbs
The parking lights, side turn signal lights, high mounted stoplight and license plate
lights 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.