2014 Lexus ES300h fuse box

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ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
6
Maintenance and care
Engine compartment
XGasoline vehicles (2GR-FE engine)
Washer fluid tank (→P. 6 9 7 )
Engine oil filler cap (→P. 686)
Engine oil level dipstick (→P. 6 8 4 )
Engine coolant reservoir (→P. 689) Brake fluid reservoir
(→P. 692)
Fuse box ( →P. 721)
12-volt battery ( →P. 693)
Electric cooling fans
Condenser ( →P. 6 9 1 )
Radiator ( →P. 6 9 1 )1
2
3
4
5
6
7
8
9
10

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ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
XHybrid vehicles (2AR-FXE engine)
■12-volt battery (hybrid vehicles)
→P. 6 9 8
Washer fluid tank ( →P. 6 9 7 )
Fuse boxes ( →P. 7 2 1 )
Power control unit coolant
reservoir ( →P. 689)
Engine oil level dipstick (→P. 6 8 4 )
Engine oil filler cap (→P. 686) Engine coolant reservoir
(→P. 689)
Brake fluid reservoir (→P. 692)
Power control unit coolant
radiator ( →P. 6 9 1 )
Electric cooling fans
Condenser ( →P. 6 9 1 )
Engine coolant radiator (→P. 6 9 1 )1
2
3
4
5
6
7
8
9
10
11

721
ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
6
Maintenance and care
Checking and replacing fuses
Turn the “START STOP ENGINE” <“POWER”> switch off.
After a system failure, see “Fuse layout and amperage ratings” for
details about which fuse to check. (→P. 7 2 4 )
Open the Fuse box cover.
XEngine compartment (type A fuse box)
Push the tab in and lift the lid off.
XEngine compartment (type B fuse box) (hybrid vehicles only)
Push the tab in and lift the lid off.
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
1
2
3

ES350_300h_OM_OM33A60U_(U)
7236-3. Do-it-yourself maintenance
6
Maintenance and care
Check if the fuse is blown.Normal fuse
Blown fuse
Type A and B:
Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the fuse box lid.
Ty p e C :
Contact your Lexus dealer.
5
1
2
XTy p e AXType B
XTy p e C

724
ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
■Engine compartment (type A fuse box)
●Fuse block
●Fuse block on the back of the cover
Fuse layout and amperage ratings

ES350_300h_OM_OM33A60U_(U)
7276-3. Do-it-yourself maintenance
6
Maintenance and care
*1:Hybrid vehicles
*2: Gasoline vehicles
40
A/F*220Air intake system
EFI-MAIN
NO.2
*120Fuel system, air intake system, exhaust sys-
tem
41AM27. 5Power management system, smart access
system with push-button start
42PA N E L10
Switch illumination, audio system, multi-infor-
mation display, audio display, shift lever light,
glove box light, console box light,
Remote Touch, intuitive parking assist switch
illumination
43DOME7. 5
Clock, footwell lights, vanity lights, ornament
lights, personal lights, door courtesy lights,
outer foot lights
44ECU-B NO.110
Smart access system with push-button start,
main body ECU, steering sensor, gauges and
meters, gateway ECU, electric tilt and tele-
scopic steering column, power seats, over-
head module, outside mirror control ECU,
power trunk opener and closer ECU
45SPARE25Spare fuse
46SPARE30Spare fuse
FuseAmpereCircuit

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ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
■Engine compartment (type B fuse box) (hybrid vehicles only)
FuseAmpereCircuit
1BATT FAN7. 5Battery cooling fan
2INV W/PMP RLY7. 5INV W/PMP RLY
3DC/DC IGCT10Hybrid system
4INV7. 5Hybrid system
5BATT VL SSR10Hybrid system
6PM IGCT7. 5Power management system, hybrid system
7IGCT-MAIN25INV W/PMP RLY, INV, DC/DC IGCT,
BATT VL SSR, PM IGCT, BATT FAN
8INV W/PMP15Hybrid system

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ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
■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. 7 3 3 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine Lexus products designed for this vehicle.
Because certain bulbs are connected to circuits designed to prevent overload, non-
genuine parts or parts not designed for this vehicle may be unusable.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than that 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.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer as soon as possible.