INTRODUCTION
499
Checking brake fluid
Parts (if level is low):
FMVSS No. 116 DOT 3 or SAE J1703 brake fluid
Tools:
Rag or paper towel
Funnel (only for adding fluid)
Checking power steering fluid
Parts (if level is low):
Automatic transmission fluid DEXRON
II or III
Tools:
Rag or paper towel
Funnel (only for adding fluid)
Checking battery condition
Tools:
Warm water
Baking soda
Grease
Conventional wrench (for terminal clamp bolts)
Checking and replacing the blade type fuses
Parts (if replacement is necessary):
Fuse with same amperage rating as original
Checking the cartridge type fuses
Parts (if replacement is necessary):
Genuine Lexus fuse or equivalent with same amperage
rating as original
Adding washer fluid
Parts:
Water
Washer fluid containing antifreeze (for winter use)
Tools:
Funnel
SECTION 6 – 4
545
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications546
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. . . . . .
Checking battery condition 551
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions 554
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Checking and replacing the blade type fuses 554
. . . . . . . . . . . . . . . .
Checking the cartridge type fuses 557
. . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid 558
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.
Replacing light bulbs 559
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ELECTRICAL COMPONENTS
547
Driver’s side instrument panel
No.FUSEAMPERECIRCUIT
1SPARE10Spare fuse
2ALT140
Charging system and all
components in “AM1”,
“HEATER”, “CDS FAN”, “FR
FOG”, “DEFOG”, “AIR SUS”,
“AC INV”, “SEAT HEATER”,
“OBD”, “STOP”, “J/B”, “RR AC”,
“MIR HEATER”, “BATT CHG”,
“TOWING BRK” and “TOWING”
fuses
3SPARE15Spare fuse
4HEATER50Air conditioning system
5AIR
SUS50Rear height control air
suspension
6AM150
All components in “ACC”, “CIG”,
“IG1”, “FR WIP −WSH”, “RR
WIP”, “RR WSH”, “DIFF”,
“ECU− IG”, “TEMS” and “STA”
fuses
7TOWING
BRK30Trailer brake controller
8J/B50
All components in “P FR P/W”,
“P RR P/W”, “D RR P/W”, “D
P/SEAT”, “P P/SEAT”, “TAIL”,
“PANEL” and “POWER OR
TI&TE” fuses
9BATTCHG30Trailer sub battery
10TOWING40Trailer lights
ELECTRICAL COMPONENTS
548
No.FUSEAMPERECIRCUIT
11CDS FAN20Electric cooling fan
12RR A/C30Rear air conditioning system
13MIR
HEATER10Outside rear view mirror
defogger
14STOP10
Stop lights, high m ounted
stoplight, shift lock control
system, vehicle stability control
system, electronic m odulated
suspension, rear height control
air suspension, multiport fuel
injection system/sequential
multiport fuel injection system
15AC INV15Power outlet (115 VAC)
16FR FOG15Front fog lights
17OBD7.5On −board diagnosis system
18HEAD
(LO RH)10Right− hand headlight (low beam)
19HEAD
(LO LH)10Left− hand headlight (low beam)
No.FUSEAMPERECIRCUIT
20HEAD
(HI RH)10Right− hand headlight (high
beam)
21HEAD
(HI LH)10Left− hand headlight (high beam)
22EFI NO.210Multiport fuel injection
system/sequential multiport fuel
injection system
23HEATER
NO.27.5Air conditioning system
24DEFOG30Rear window defogger
25AIRSUSNO.210Rear height control air
suspension
26SEAT
HEATER20Seat heaters
27DOME10
Ignition switch light, interior
lights, personal lights, foot
lights, running board lights,
door courtesy lights, inside
door handle lights,
multi −information display
28RADIO
NO.120Audio system, navigation
system