fuse LEXUS RX350 2015 Owner's Manual

7124-3. Do-it-yourself maintenance
7
ECU-IG1 NO. 1 10 A Multiplex communication system,
steering sensor, shift lock control sys-
tem, tilt and telescopic steering, auto-
matic transmission system, power
back door, pre-collision system, vehi-
cle stability control system, tire pres-
sure warning system8
S/ROOF 30 A Moon roof9
FUEL OPN 7. 5 A Fuel filler door opener10
PSB 30 A Pre-collision seat belt11
TI & TE 30 A Tilt and telescopic steering system12
DR LOCK 10 A13
FR FOG 7. 5 A Front fog lights14
P-S E AT L H 30 A Po w e r s e a t ( l e f t - s i d e )15
4WD 7. 5 A AW D s y s t e m16
INVERTER 20 A Po w e r o u t l e t17
RR FOG 7. 5 A18
D/L ALT B 25 A Multiplex communication system,
power door lock system, power back
door19
EPS 10 A Electric power steering system20
ECU-IG1 NO. 2 10 A Intuitive parking assist, AWD system,
pre-collision seat beltFuse Ampere Circuit

7134-3. Do-it-yourself maintenance
4
Maintenance and care 21
PA N E L 10 A Switch illumination, navigation system,
automatic transmission system, audio
system, multi-information display, air
conditioning system, multiplex com-
munication system22
TA I L 10 A Parking lights, front side marker lights,
tail lights, license plate lights, front fog
lights, towing converter23
AIR SUS 20 A24
P-S E AT R H 30 A Power seat (right-side)25
OBD 7. 5 A On-Board diagnosis26
FR DOOR 25 A Front power window (right-side), out-
side rear view mirror27
RR DOOR 25 A Rear power window (right-side)28
FL DOOR 25 A Front power window (left-side), out-
side rear view mirror29
RL DOOR 25 A Rear power window (left-side)30
FR WASH 25 A Windshield wipers and washer31
RR WIP 15 A Windshield wipers and washer32
RR WASH 20 A Windshield wipers and washer33
FR WIP 30 A Windshield wipers and washer
34
ECU IG2 10 A Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, front passenger occupant classi-
fication system, SRS airbag system,
stop lights, electronic controlled
transmission, steering lock systemFuse Ampere Circuit

7144-3. Do-it-yourself maintenance
35
GAUGE NO. 2 7. 5 A Gauge and meters36
RH S-HTR 15 A Seat heater (right-side)37
LH S-HTR 15 A Seat heater (left-side)Fuse Ampere Circuit

7154-3. Do-it-yourself maintenance
4
Maintenance and care ■
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. 7 1 9 )●
If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.■
If there is an overload in the circuit
The fuses are designed to blow, protecting the wiring harness from damage.
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 fuse or fuse boxes.
NOTICE■
Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.

5
When trouble arises
7895-2. Steps to take in an emergency
If the engine will not start If the engine will not start even though correct starting procedures are
being followed (
 P. 165), consider each of the following points.
■ The engine will not start, even th ough 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.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine again following correct starting proce-
dures. (  P. 165)
● There may be a malfunction in the engine immobilizer system.
(  P. 1 1 0 )
■ The starter motor turns over slow ly, 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. 7 9 6 )
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over.
The engine starting system may be malfunctioning due to an electri-
cal problem such as an open ci rcuit or a blown fuse. However, an
interim measure is available to start the engine. (  P. 790)

8476
Vehicle specifications 6-3. Initialization
Items to initialize Item When to initialize Reference
Power back door • After reconnecting or changing the
battery
• After changing a fuse P. 5 6
Maintenance data
(U.S.A. only) After the maintenance is performed P. 6 5 7
Tire pressure warning
system • When rotating the tires
• When changing tire pressure (such
as when changing traveling speed,
load weight, etc.)
• When changing the tire size P. 6 8 5The following items must be initialized for normal system operation in cases
such as after the battery is reconnected, or maintenance is performed on
the vehicle.

875Alphabetical index
Fuel
Capacity................................................ 808
Fuel gauge ................................................191
Fuel pump shut off system .............743
Information............................................. 818
Refueling ................................................. 105
Type........................................................... 818
Fuel door....................................................105
Fuel filler door..........................................105
Fuel pump shut off system .................743
Fuses.......................................................... 703
Garage door opener...........................632
Gauges........................................................ 191
Glove box ............................................... 599
Hands-free system for
mobile phone* ........................433, 560
Hazard lights
Switch ......................................................734
Head restraints
Adjustment ............................................... 81
Headlight aim .......................................... 717
Headlight cleaner .................................226
Headlights
Discharge headlight
precautions ........................................732
Replacing light bulbs ......................... 719
Switch .......................................................... 211
Wattage ................................................... 817
Head-up display
Display contrast adjustment
switch ................................................... 206
Display position adjustment
switch ................................................... 206 Head-up display main switch ..... 206
Heaters
Seat heaters ......................................... 620
Side mirrors* ......................................... 361
Steering wheel...................................... 619
Hill-start assist control ........................ 276
Hood .......................................................... 667
Hooks
Cargo ...................................................... 627
Coat..........................................................623
Horn ............................................................ 190
HUD
Display contrast adjustment
switch................................................... 206
Display position adjustment
switch................................................... 206
Head-up display main switch ..... 206
I/M test...................................................... 663
Identification
Engine..................................................... 807
Vehicle ................................................... 807
Ignition switch.......................................... 165
Illuminated entry system ....................595
Immobilizer system .................................110
Indicator lights......................................... 194
Initialization
Items to initialize .................................847
Inside rear view mirror .......................... 92
Instrument panel light control
buttons .................................................... 192G
H
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”. I

878Alphabetical index
Rear view mirror
Compass ...............................................638
Inside rear view mirror....................... 92
Outside rear view mirrors ............... 95
Rear view monitor
system* ...................................... 255, 264
Rear window defogger* ..................... 361
Rear window wiper .............................. 224
Remote Touch*
Replacing
Electronic key battery........................701
Fuses ........................................................ 703
Light bulbs............................................... 719
Tires ...........................................................774
Wireless remote control
battery ....................................................701
Reporting safety defects for
U.S. owners ......................................... 850
Reset the maintenance data............. 657
Roof luggage carrier ........................... 296
Safety Connect*.................................... 642
Scuff lights ................................................595
Seat belts
Adjusting the seat belt........................ 84
Automatic locking retractor............ 85
Child restraint system
installation ..............................................141
Cleaning and maintaining
the seat belts .....................................654
Emergency locking retractor ........ 85
How to wear your seat belt............. 83
How your child should wear
the seat belt .......................................... 85 Pregnant women,
proper seat belt use .........................87
Reminder light...................................... 747
Seat belt extender ................................ 86
Seat belt pretensioners ..................... 84
Seat heaters ............................................ 620
Seat position memory.............................76
Seat ventilators ...................................... 620
Seating capacity..................................... 301
Seats
Adjustment ..................................... 68, 72
Adjustment
precautions .................................... 71, 74
Child seats/child restraint
system installation.............................. 141
Cleaning ................................................ 653
Flatting seat backs ................................69
Head restraint .......................................... 81
Power easy access system ..............78
Properly sitting in the seat................. 117
Seat heaters ......................................... 620
Seat position memory......................... 76
Seat ventilators ................................... 620
Service reminder indicators .............194
Shift lever
Automatic transmission ...........171, 178
If the shift lever cannot be
shifted from P..................................... 791
Shift lever light ....................................... 595
Shift lock system...................................... 791
Side airbags ............................................... 119
Side marker lights
Switch .......................................................... 211
Side mirror
Adjusting and folding ......................... 95
Mirror position memory .................... 76S