Page 793 of 956
7914-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) ■ Engine compartment (fuse box on the right side)
Fuse Ampere Circuit
1 HWD1 30 A No circuit
2 TOW BRK 30 A Brake controller
3 RR P/SEAT 30 A Power second seat
4 PWR HTR 7. 5 A No circuit
5 DEICER 20 A Windshield wiper de-icer
6 ALT-CDS 10 A ALT-CDS
7 SECURITY 5 A SECURITY
8 SEAT A/C RH 25 A Seat heaters and ventilators
9 AI PMP HTR 10 A AI pump heater
10 TOW TA I L 30 A Towing tail light system
11 HWD2 30 A No circuit
Page 794 of 956
7924-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) ■ Driver’s side instrument panel
Fuse Ampere Circuit
1 CIG 15 A Cigarette lighter
2 BK/UP LP 10 A Back-up lights, trailer
3 ACC 7. 5 A Audio system, parking assist system,
multi-display assembly, main body
ECU, mirror ECU, satellite radio,
smart access system with push-but-
ton start
Page 795 of 956

7934-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) 4 PA N E L 10 A Ashtray, brake controller, cigarette
lighter, cool box, center differential
lock, driving mode switches, multi-
information display, air conditioning
system, glove box light, audio system,
emergency flashers, headlight cleaner
switch, driving position memory
switches, outside rear view mirror
switches, overhead module, roll sens-
ing of curtain shield airbags off switch,
rear heater panel, shift lever switch,
power back door main switch, camera
switch, VSC OFF switch, steering
switch, console switch, instrument
panel light control
5 ECU-IG No.2 10 A Air conditioning system, rear heater
panel, overhead module, ABS, VSC,
steering sensor, yaw rate & G sensor,
main body ECU, stoplights, moon
roof, anti-glare inside rear view mirror
6 WINCH 5 A No circuit
7 A/C IG 10 A Cool box, condenser fan, cooler com-
pressor, rear window and outside rear
view mirror defoggers, smog sensor
8 TA I L 15 A Tail lights, license plate lights, front fog
lights, parking lights, side marker
lightsFuse Ampere Circuit
Page 796 of 956
7944-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) 9 WIPER 30 A Windshield wiper
10 WSH 20 A Windshield washer
11 RR WIPER 15 A Rear window wiper and washer
12 4WD 20 A Four-wheel drive system
13 LH-IG 5 A Alternator, towing, seat heater and
ventilators, windshield wiper de-icer,
front seat belt, emergency flasher,
inverter switch, shift lever switch
14 ECU-IG No.1 5 A ABS, VSC, tilt and telescopic steer-
ing, gateway ECU, shift lock system,
parking assist system, cruise control
switch, pre-collision system, headlight
cleaner, multi-display assembly, rain-
sensing windshield wiper, driving posi-
tion memory system, power door lock
system
15 S/ROOF 25 A Moon roof
16 RR DOOR RH 20 A Po w e r w i n d o w s
17 MIR 15 A Mirror ECU, outside rear view mirror
defoggers
18 RR DOOR LH 20 A Po w e r w i n d o w s
19 FR DOOR LH 20 A Po w e r w i n d o w s
20 FR DOOR RH 20 A Po w e r w i n d o w sFuse Ampere Circuit
Page 799 of 956
7974-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) Fuse Ampere Circuit
11 SEAT-A/C FAN 10 A Ventilators
12 SEAT-HTR 20 A Seat heaters
13 AFS 5 A Adaptive Front-lighting System
14 ECU-IG No.3 5 A Adaptive Front-lighting System,
dynamic radar cruise control system
15 STRG HTR 10 A Heated steering wheel
16 TV 10 A Multi-display assembly■
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 9 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, protecting the wiring harness from damage.
Page 801 of 956
7994-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) Light bulbs You may replace the following bulbs yourself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems
difficult to perform, contact your Lexus dealer.
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. 890)
■ Remove the engine compartment cover
P. 74 8
■ Front bulb locations Headlight high beamFront turn signal light
Page 802 of 956
8004-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) ■ Rear bulb locations Rear turn signal lightBack-up lights
Page 803 of 956
8014-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) Replacing light bulbs
■ Headlight high beams
Turn the cover counterclockwise
and remove it.
Turn the bulb base counterclock-
wise.
Unplug the connector while pull-
ing the lock release.STEP 1
STEP 2
STEP 3