Page 604 of 632

ELECTRICAL COMPONENTS
580
No.FUSEAMPERECIRCUIT
70 A/F15Multi−port fuel injection
system/sequential multiport fuel
injection system
71 ETCS10Multi−port fuel injection
system/sequential multiport fuel
injection system
72 ALT S7.5Charging system
73 EM VLV10No circuit
74 H LP CLN30Headlight cleaner system
75 A/C COMP7.5Air conditioning system
76 DEICER25No circuit
77 FR
CTRL AM30“FR TAIL”, “FR FOG” and
“WASHER”
78 IG210Starting system
79 EFI NO.210
Multi− port fuel injection
system/sequential multiport fuel
injection system, Evaporative
system
80 H LP R
LW R15Right− hand headlight (low
beam)
81 H LP L
LW R15Left− hand headlight (low beam)
82 F/PMP25Fuel pump
No.FUSEAMPERECIRCUIT
83 EFI
GS430:
20
GS300: 25Multi− port fuel injection
system/sequential multiport fuel
injection system
84 INJ20Multi− port fuel injection
system/sequential multiport fuel
injection system
85 H LP UPR15Headlights (high beam)
86 HORN10Horn
87 WASHER20Windshield wipers and washer
88 FR TAIL10Parking lights, Side marker
lights
89 FR FOG15Front fog lights
90 RR
S/SHADE7.5Rear electric sunshade
91 PSB30Pre− collision system
92 RR IG210No circuit
93 RR IG110Pre− collision system, Rear
electric sunshade, Seat belt
pretensioners
94 RR B10Luggage compartment light,
Noise filter
95 RR FOG7.5Rear fog lights
96 STOP LP L10Stoplights, Back up lights 
         
        
        
     
        
        Page 607 of 632

ELECTRICAL COMPONENTS
583
NOTICE
Make sure the engine and all accessories are turned
off before performing maintenance.
 When  checking the battery, remove the ground cable
first and reinstall it last.
 Be careful not to cause a short circuit with tools.
 Take care no solution gets into the battery when
washing it.
If the battery is disconnected or run down
The following functions may not operate correctly when you
reconnect or replace the battery.  In these cases, you should
normalize each system referring to the following pages.
Power windows (See page 61.)
 Moon roof (See page 138.)
 Variable gear ratio steering system (See page 431.)
 Intuitive parking assist (See page 387.)
Checking battery condition
Checking by indicator
G64009
Check the battery condition by the indicator color.
 1
BLUE −  Good condition.
 2
WHITE  − Charging necessary.  Have the battery checked
by your Lexus dealer.
 3 RED −  Have the battery checked by your Lexus dealer.
NOTICE
Do not refill the battery with water. 
         
        
        
     
        
        Page 608 of 632
ELECTRICAL COMPONENTS
584
BATTERY RECHARGINGPRECAUTIONS
During recharging, the battery is producing hydrogen
gas.
Therefore, before recharging:
1. If recharging with the battery installed on the vehicle, be
sure to disconnect the ground cable.
2. Make sure the power switch on the recharger is off when
connecting the charger cables to the battery and when
disconnecting them.
CAUTION
Always  charge the battery in an unconfined area.  Do
not charge the battery in a garage or closed room
where there is not sufficient ventilation.
 Only do a slow charge (5 A or less).  Charging at a
quicker rate is dangerous.  The battery may explode
causing personal injuries.
NOTICE
Never recharge the battery while the engine is running.
Also, be sure all accessories are turned off.
CHECKING AND REPLACING THE
BLADE TYPE FUSES
G64010
Left side kick panel
G64011
Right side kick panel