Page 433 of 586
432
4-3. Do-it-yourself maintenance
10_IS250C/350C_U
9E/G-B60 AFR CTRL-B, ETCS, ALT-S, A/F, TEL, 
STR LOCK
10ABS150 AVDIM
11RH J/B-B30 AFR DOOR RH, AM2
12MAIN30 AH-LP R LWR, H-LP L LWR
13STARTER30 ASmart access system with push-button 
start
14LH J/B-B30 AFR DOOR LH, SECURITY
15P/ I - B60 AINJ, F/PMP, EFI
16EPS80 APo w e r  s t e e r i n g
17ALT150 A
LH J/B-AM, E/G-AM, GLW PLG2, 
HEATER, FAN1, FAN2, ABS2, RH 
J/B-AM, GLW PLG1, RR R/B-AM
18RR R/B-AM80 A
DEFOG, PSB, ROOF RH, ROOF 
LH, LGG RH, LGG LH, LGG LCK 
RH, LGG LCK LH, P-TRAY MAIN, 
P-T R AY  S I D E
19GLW PLG150 APTC heater
20RH J/B-AM80 A
OBD, STOP SW, TI&TE, FR P/SEAT 
RH, RAD NO.3, ECU-IG RH, 
RH-IG, FR S/HTR RH, ACC, CIG, 
PWR OUTLET, DOOR DL
21ABS230 AVDIM
22FA N 240 AElectric cooling fans
23FA N 140 AElectric cooling fans
24HEATER50 AAir conditioning system
25GLW PLG250 APTC heater
FuseAmpereCircuit 
         
        
        
     
        
        Page 434 of 586
433
4-3. Do-it-yourself maintenance
4
Maintenance and care
10_IS250C/350C_U
26E/G-AM60 AH-LP CLN, FR CTRL-AM, A/C 
COMP
27LH J/B-AM80 A
FR P/SEAT LH, TV NO.1, A/C, FUEL 
OPN, FR WIP, LH-IG, ECU-IG LH, 
PA N E L ,  TA I L ,  M I R  H T R ,  
FR S/HTR LH, TV NO. 2, RR FOG
FuseAmpereCircuit 
         
        
        
     
        
        Page 435 of 586
434
4-3. Do-it-yourself maintenance
10_IS250C/350C_U■
Engine compartment (type B fuse box)
FuseAmpereCircuit
1SPARE30 ASpare fuse
2SPARE25 ASpare fuse
3SPARE10 ASpare fuse
4FR CTRL-B25 AHeadlight high beam, HORN
5A/F15 AExhaust system
6ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
7ALT-S7. 5  ACharging system
8TEL10 A
9STR LOCK25 ASteering lock system
10H-LP CLN30 AHeadlight cleaner
11A/C COMP7. 5  AAir conditioning system
12DEICER25 A
13FR CTRL-AM30 AWASHER, FR TAIL, FR FOG 
         
        
        
     
        
        Page 436 of 586
435
4-3. Do-it-yourself maintenance
4
Maintenance and care
10_IS250C/350C_U
14IG210 A
Ignition system, multiport fuel injec-
tion system/sequential multiport fuel 
injection system
15EFI NO.210 AFuel system, exhaust system
16H-LP R LWR15 AHeadlight low beam (right)
17H-LP L LWR15 AHeadlight low beam (left)
18F/ P M P25 AFuel system
19EFI25 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, EFI NO. 2
20INJ20 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
21H-LP UPR15 AHeadlight high beams
22HORN10 AHorns
23WA S H E R20 AWindshield washer
24FR TAIL10 AParking lights, front side marker lights
25FR FOG15 AFront fog lights
FuseAmpereCircuit 
         
        
        
     
        
        Page 437 of 586
436
4-3. Do-it-yourself maintenance
10_IS250C/350C_U■
Driver’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT LH30 APo w e r  s e a t
2A/C7. 5  AAir conditioning system
3MIR HTR15 AOutside rear view mirror defoggers
4TV NO.110 ADisplay
5FUEL OPN10 AFuel filler door opener
6TV NO.27. 5  A
7TA I L10 ATail lights, license  plate lights, parking 
lights, side marker lights
8PA N E L7. 5  A
Air conditioning system, display, 
clock, cigarette lighter, power steer-
ing, headlight cleaner, retractable 
hardtop, ECT, ETCS, seat heaters and 
ventilators, trunk opener, outside rear 
view mirrors, shift lever light, traction 
control, audio, instrument panel light 
control
9RR FOG7. 5  A 
         
        
        
     
        
        Page 438 of 586
437
4-3. Do-it-yourself maintenance
4
Maintenance and care
10_IS250C/350C_U
10ECU-IG LH10 A
Cruise control, air conditioning sys-
tem, power steering, rain sensor, anti-
glare inside rear view mirror, shift lock 
system, tire inflation pressure warning 
system, vehicle stability control
11FR S/HTR LH15 ASeat heaters and ventilators, air condi-
tioning system
12FR DOOR LH20 APower windows, outside rear view 
mirrors
13SECURITY7. 5  ASmart access system with push-button 
start
14H-LP LVL7. 5  AAFS
15LH-IG10 A
Charging system, headlight cleaner, 
rear window defogger, electric cool-
ing fans, emergency flashers, turn sig-
nal lights, back-up lights, stop lights, 
mirror heaters, seat belt pretensioner, 
intuitive parking assist, cruise control, 
PTC heater, exhaust system, smart 
access system with push-button start
16FR WIP30 AWindshield wipers
FuseAmpereCircuit 
         
        
        
     
        
        Page 439 of 586
438
4-3. Do-it-yourself maintenance
10_IS250C/350C_U■
Passenger’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT RH30 APo w e r  s e a t
2DOOR DL15 A
3OBD7. 5  AOn-board diagnosis system
4STOP SW7. 5  A
Stop lights, multiport fuel injection sys-
tem/sequential multiport fuel injection 
system, VDIM, shift lock system
5TI & TE20 AElectric tilt and telescopic steering 
column
6RAD NO.310 AAudio
7GAUGE7. 5  AMeter
8IGN10 A
SRS airbag system, steering lock sys-
tem, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, stop lights, smart access system 
with push-button start, occupant 
detection system
9ACC7. 5  A
Audio, clock, air conditioning system, 
navigation system, outside rear view 
mirrors, smart access system with 
push-button start, glove box light, 
console box light 
         
        
        
     
        
        Page 440 of 586
439
4-3. Do-it-yourself maintenance
4
Maintenance and care
10_IS250C/350C_U
10CIG15 ACigarette lighter
11PWR OUTLET15 APo w e r  o u t l e t
12FR DOOR RH20 APo w e r  w i n d o w s ,  o u t s i d e  r e a r  v i e w  
mirrors
13AM27. 5  AStarting system
14RH-IG7. 5  A
Seat belt pretensioner, intuitive park-
ing assist, automatic transmission, seat 
heater and ventilator
15FR S/HTR RH15 ASeat heaters and ventilators, air condi-
tioning system
16ECU-IG RH10 A
Power seats, headlights, front fog 
lights, parking lights, license plate 
lights, front side marker lights, wind-
shield washer, outside rear view mir-
rors, VDIM, air conditioning system, 
pre-collision seat belt, electric tilt and 
telescopic steering, power windows, 
navigation system, vehicle stability 
control, retractable hardtop, clock
FuseAmpereCircuit