2009 Lexus ES350 fuse

346
4-3. Do-it-yourself maintenance
ES350_U_(L/O_0808)
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1PSB30 APre-collision seat belt
2H-LP CLN30 A
3P-P / SEAT30 APo w e r s e a t
4RR DEF50 ARear window defogger
5ABS NO.230 AAnti-lock brake system, vehicle stabil-
ity control system
6FAN MAIN50 AElectric cooling fans
7ABS NO.150 AAnti-lock brake system, vehicle stabil-
ity control system
8HTR50 AAir conditioning system
9RR FOG10 A
10ALT-CDS10 AAlternator condenser
11ST30 AStarting system

347
4-3. Do-it-yourself maintenance
4
Maintenance and care
ES350_U_(L/O_0808)
12A LT140 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
19A LT- S7. 5 ACharging system
20AM27. 5 AStarting system
21EFI MAIN30 AEFI NO.2, EFI NO.3, fuel system, ECT
system
22AMP30 AAudio system
23AMP230 AAudio system
24DOOR NO.125 APower door lock system
25R A D I O N O.115 AAudio system
26ECU-B NO.110 AECU powers
27DOME10 AInterior lights, meters, vanity lights
28H-LP (LH)15 ALeft-hand headlight (high beam)
29H-LP (RH)15 ARight-hand headlight (high beam)
FuseAmpereCircuit

348
4-3. Do-it-yourself maintenance
ES350_U_(L/O_0808)
30H-LP (LL)15 ALeft-hand headlight (low beam)
31H-LP (RL)15 ARight-hand headlight (low beam)
32HORN10 AHorns
33EFI NO.110 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, ECT system
34M PX- B10 AMeters
35A/F20 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
36S-HORN7. 5 AHorn
37EFI NO.215 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
38EFI NO.310 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
FuseAmpereCircuit

349
4-3. Do-it-yourself maintenance
4
Maintenance and care
ES350_U_(L/O_0808)■
Driver’s side instrument panel
FuseAmpereCircuit
1RR DOOR RH25 APower window
2RR DOOR LH25 APower window
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
7STO P10 AStop lights
8TI & TE30 ATilt and telescopic steering
9A/C7. 5 AAir conditioning system
10PWR25 APower windows
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

350
4-3. Do-it-yourself maintenance
ES350_U_(L/O_0808)
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 - L P LV L7. 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 APower outlet
28RADIO NO. 27. 5 AAudio system
29MIR HTR15 AOutside rear view mirror defoggers
FuseAmpereCircuit

351
4-3. Do-it-yourself maintenance
4
Maintenance and care
ES350_U_(L/O_0808)
30POWER30 APower window
31P/ S E AT30 APower seat
■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. 3 5 4 )
●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

5
When trouble arises
407
5-2. Steps to take in an emergency
ES350_U_(L/O_0808)
If the engine will not start
If the engine will not start, even though correct starting procedures are
being followed (
→P. 116), consider each of the following points.
■The engine will not start even when the starter motor operates
normally.
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Add fuel to the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( →P. 1 1 6 )
● There may be a malfunction in the engine immobilizer system.
(→ P. 7 0 )
■ The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume.
One of the following may be the cause of the problem.
● The battery may be discharged. ( →P. 413)
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over
One of the following may be the cause of the problem.
●The engine starting system may be malfunctioning due to an elec-
trical problem such as an open circuit or a blown fuse. However,
an interim measure is available to start the engine. ( →P. 4 0 8 )

463
Alphabetical index
ES350_U_(L/O_0808)
Engine coolantCapacity................................................. 426
Checking ................................................. 317
Preparing and checking
before winter ...................................... 172
Engine coolant temperature
gauge ....................................................... 125
Engine immobilizer system ..................70
Engine oil Capacity................................................. 425
Checking ................................................. 313
Preparing and checking
before winter ...................................... 172
Engine oil maintenance data ............. 316
Event data recorder.............................373
Floor mat................................................... 277
Fluid
Brake ......................................................... 319
Power steering fluid ......................... 320
Washer ................................................... 325
Fog lights
Switch ........................................................138
Wattage ................................................... 431
Foot well lighting .................................. 253
Front fog lights Switch ........................................................138
Wattage ................................................... 431
Front passenger occupant classification system ........................... 88
Front passenger's seat belt reminder light ...................................... 377 Front seats
Adjustment ............................................... 43
Driving position memory .................. 44
Seat position memory ........................ 47
Front side marker lights Replacing light bulbs ........................ 357
Wattage ................................................... 431
Front turn signal lights
Replacing light bulbs ........................ 357
Wattage ................................................... 431
Fuel Capacity ................................................. 424
Fuel gauge.............................................. 125
Fuel pump shut off system ............. 372
Gas station information .................. 472
Information ............................................ 432
Refueling.................................................... 67
Fuel door ..................................................... 67
Fuel filler door ........................................... 67
Fuel pump shut off system................. 372
Fuses .......................................................... 344
Garage door opener ......................... 280
Gas station information...................... 472
Gauges ...................................................... 125
Glove box ................................................ 256
Glove box light ...................................... 257
Grocery bag hooks ............................. 278
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