Lexus GS350 2008 Using the audio system / LEXUS 2008 GS460/350 OWNER'S MANUAL (OM30A87U)
Page 451 of 596
451
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
May 13, 2008 5:14 pm
GS350
FuseAmpereCircuit
1ECU-B10VGRS, EPS, driver’s seat switch 
module, Lexus link system ECU
2ABS MAIN325Electronically controlled 
brake system
3TURN-HAZ15Turn signal lights, emergency flashers
4IG2 MAIN20IG2, GAUGE and IGN
5RAD NO.230Audio system
6D/C CUT20DOME and MPX-B
7RAD NO.130Audio system
8MPX-B10
Multiplex communication system, 
front controller, door control system 
(power door lock system, door cour-
tesy lights, power windows, power 
rear view mirror control system, out-
side rear view mirror heaters), power 
seat system, steering sensors, elec-
tronically controlled brake system, tilt 
and telescopic steering wheel, 
gauges and meters, combination 
switch 
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452
4-3. Do-it-yourself maintenance
GS_G_U
May 13, 2008 5:14 pm
FuseAmpereCircuit
9DOME10
Foot lights, vanity lights, gauges and 
meters, steering spot light, steering 
switch illumination, rear personal 
lights, automatic transmission selec-
tor lever spot light, front personal 
lights
10CDS10Noise filter
11ABS MAIN210Electronically controlled 
brake system
12ABS MOTOR30ABS
13ABS MAIN110Capacitor
14BATT-E/G60FR CTRL BATT, ETCS, ALT-S and  
A/F HTR
15ABS150VDIM system
16RH J/B-B30AM2, DOOR FR and DOOR RR
17VGRS40VGRS
18MAIN30H-LP R LWR and H-LP L LWR
19STARTER30Starting system
20LH J/B-B30FL DOOR, RL DOOR and RAD 
NO.3
21P/ I - B60EFI NO.1, F/PMP and INJ
22EPS80EPS 
23ALT150
RH J/B-AM, LH J/B-AM, E/G-AM, 
RR JB, HEATER, DEFOG, FAN1, 
FAN2, ABS2, ABS MOTOR,  
ABS MAIN1, and ABS MAIN2 
Page 453 of 596
453
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
May 13, 2008 5:14 pm
FuseAmpereCircuit
24RR J/B80
STOP LP R, STOP LP L, RR-B, 
RR TAIL, RR FOG, RR-IG1, PSB, 
and RR S/SHADE
25GLW PLG150Starting system
26RH J/B-AM80
AM1, OBD, STOP SW, TI&TE,  
PWR OUTLET, FR P/SEAT RH,  
STR LOCK, ECU-IG RH, RH-IG,  
ACC, CIG, SECURITY,  
FR S/HTR RH and AIR SUS
27ABS230ABS
28DEFFOG50Rear window defogger, noise filter
29CDS40CDS
30FA N 140Electric cooling fans
31HEATER50Air conditioning system
32GLW PLG250Starting system
33E/G-AM60H-LP CLN, FR CTRL ALT, A/C 
COMP and STB-AM
34LH J/B-AM80
S/ROOF, P/SEAT, TV, FL S-HTR, 
ECU-IG L, WIP, H-LP LVL, LH-IG, 
FUEL OPN, A/C, PANEL, LH-B and 
TRK OPN
35FA N 260Electric cooling fans 
Page 454 of 596
454
4-3. Do-it-yourself maintenance
GS_G_U
May 13, 2008 5:14 pm
■Engine compartment (Type B)
GS460
FuseAmpereCircuit
1FR CTRL-B25H-LP UPR and HORN
2A/F15Exhaust system
3ETCS10Electronic throttle control system
4ALT-S7. 5  Charging system
5INJ225
Multiport fuel injection system/
sequential multiport fuel injection
system
6H-LP CLN30Headlight cleaner
7STB-AM30
8DEICER25
9FR CTRL-AM30FR TAIL, FR FOG and WASHER 
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455
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
May 13, 2008 5:14 pm
FuseAmpereCircuit
10IG210Ignition system, noise filter and ECT 
ECU
11EFI NO.210
Fuel system, exhaust system, multi-
port fuel injection system/sequential 
multiport fuel injection system, elec-
tronic engine control system, leak 
detection pump
12H-LP R LWR15Headlight low beam (right)
13H-LP L LWR15Headlight low beam (left)
14F/ P M P25Fuel system
15EFI25
Multiport fuel injection system/
sequential multiport fuel injection 
system, ECT ECU
16INJ25
Multiport fuel injection system/
sequential multiport fuel injection 
system
17H-LP UPR15Headlight high beams
18HORN10Horns
19WA S H E R20Windshield wipers and washer
20FR TAIL10Parking lights, side marker light
21FR FOG15Front fog lights 
Page 456 of 596
456
4-3. Do-it-yourself maintenance
GS_G_U
May 13, 2008 5:14 pm
GS350
FuseAmpereCircuit
1FR CTRL-B25H-LP UPR and HORN
2A/F15Exhaust system
3ETCS10Electronic throttle control system
4ALT-S7. 5  Charging system
5H-LP CLN30Headlight cleaner
6A/C COMP7. 5  Air conditioning system
7DEICER25
8FR CTRL-AM30FR TAIL, FR FOG and WASHER
9IG210Ignition system and noise filter
10EFI NO.210Fuel system and exhaust system 
Page 457 of 596
457
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
May 13, 2008 5:14 pm
FuseAmpereCircuit
11H-LP R LWR15Headlight low beam (right)
12H-LP L LWR15Headlight low beam (left)
13F/ P M P25Fuel system
14EFI NO.125
Multiport fuel injection system/
sequential multiport fuel injection 
system
15INJ20
Multiport fuel injection system/
sequential multiport fuel injection 
system
16H-LP HI15Headlight high beams
17HORN10Horns
18WA S H E R20Windshield wipers and washer
19FR TAIL10Parking lights, side marker light
20FR FOG15Front fog lights 
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458
4-3. Do-it-yourself maintenance
GS_G_U
May 13, 2008 5:14 pm
■Left side instrument panel
FuseAmpereCircuit
1FR P/SEAT LH30Power seat system
2A/C7. 5Air conditioning system
3TV7. 5Audio system, air conditioning sys-
tem, rear view monitor system
4TRK OPN10Trunk lid opener
5LH-B10Theft deterrent system
6S/ROOF25Moon roof
7PA N E L7. 5
Steering switch illumination, audio 
system, glove box light, automatic 
transmission selector lever illumina-
tion, console box light, adaptive vari-
able suspension switch illumination, 
cigarette lighter illumination, air con-
ditioning system, VSC OFF switch 
illumination, driving pattern selector 
switch, seat heater or heated and 
ventilated seat switches, register ILL 
RH, register ILL LH, fuel filler door 
and trunk lid opener switch illumina-
tion, D-SW module 
Page 459 of 596
459
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
May 13, 2008 5:14 pm
FuseAmpereCircuit
8FUEL OPN10Fuel filler door opener, trunk lid 
opener
9ECU-IG LH10
VDIM, electronically controlled 
brake system, yaw rate and G sensor, 
steering sensor, cruise control sys-
tem, dynamic radar cruise control 
system, EPS, VGRS, rear view moni-
tor system, four-wheel drive system, 
front controller, moon roof, rain sen-
sor
10FR S/HTR LH15Seat heaters and ventilators
11RR DOOR LH20
Rear left door control system (power 
door lock system, door courtesy light, 
power window)
12FR DOOR LH20
Front left door control system (power 
door lock system, power rear view 
mirror control system, door courtesy 
light, outside rear view mirror heater, 
power window)
13RAD NO.310Audio system
14H-LP LVL7. 5AFS, automatic headlight leveling 
control system 
Page 460 of 596
460
4-3. Do-it-yourself maintenance
GS_G_U
May 13, 2008 5:14 pm
FuseAmpereCircuit
15LH-IG10
Charging system, headlight cleaners, 
exhaust gas sensor, rear window 
defogger, electric cooling fans, rear 
left door control system, front left 
door control system, emergency 
flashers, automatic transmission, seat 
belt pretensioners, Intuitive parking 
assist, power window
16FR WIP30Windshield wipers and washer