Page 2 of 61
369
4-3. Do-it-yourself maintenance
4
Maintenance and care
ItemsPa r t s a n d t o o l s
Engine oil level (→P. 3 7 7 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→P. 4 0 8 )• Fuse with same amperage rating as
original
Tire inflation pressure (→P. 3 9 8 )• Tire pressure gauge
• Compressed air source
Headlight aim (→P. 4 1 7 )• Phillips-head screwdriver
Power steering fluid
level (→P. 3 8 3 )
• Automatic transmission fluid
DEXRON® II or III
•Rag or paper towel
• Funnel (used only for adding power
steering fluid)
Radiator and condenser (→P. 3 8 2 )⎯
Wa s h e r f l u i d (→P. 3 8 8 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel
Page 8 of 61
375
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine compartment
Power steering fluid reservoir
(→P. 383)
Engine oil filler cap
(→P. 3 7 8 )
Engine oil level dipstick
(→P. 377)
Brake fluid reservoir
(→P. 382)
Battery (→P. 385)Fuse box (→P. 4 0 8 )
Electric cooling fans
Condenser (→P. 382)
Radiator (→P. 382)
Washer fluid tank
(→P. 388)
Engine coolant reservoir
(→P. 380)
Page 41 of 61
408
4-3. Do-it-yourself maintenance
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and replace the fuses as necessary.
Turn the “ENGINE START STOP” switch OFF.
Remove the engine compartment cover. (→P. 3 76)
Open the fuse box cover.
Engine compartment
Push the tabs in and lift the lid
off.
Driver's side instrument panel
Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(→P. 4 1 1) for details about which fuse to check.
STEP1
STEP2
STEP3
STEP4
Page 42 of 61
409
4-3. Do-it-yourself maintenance
4
Maintenance and care
Remove the fuse with the pull-
out tool.
Check if the fuse has blown.
Type A
Normal fuse
Blown fuse
Replace it with one of an appro-
priate amperage rating. The
amperage rating can be found
on the fuse box lid.
Type B
Normal fuse
Blown fuse
Replace it with one of an appro-
priate amperage rating.
STEP5
STEP6
Page 43 of 61
410
4-3. Do-it-yourself maintenance
Type C
Normal fuse
Blown fuse
Contact your Lexus dealer.
Page 44 of 61
411
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
■Engine compartment
FuseAmpereCircuit
1PSB30 APre-collision seat belt
2H-LP CLN30 A
3P- P / S E AT30 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
6FA N M A I N50 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
Page 45 of 61
412
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
Page 46 of 61
413
4-3. Do-it-yourself maintenance
4
Maintenance and care
30H-LP (RH)15 ARight-hand headlight (high beam)
31H-LP (LL)15 ALeft-hand headlight (low beam)
32H-LP (RL)15 ARight-hand headlight (low beam)
33HORN10 AHorns
34EFI NO.110 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, ECT system
35MPX-B10 AMeters
36A/F20 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
37S-HORN7. 5 AHorn
38EFI NO.215 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
39EFI NO.310 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
FuseAmpereCircuit