2007 LEXUS LX470 Owners Manual

311
4-3. Do-it-yourself maintenance
4
Maintenance and care
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 ignition key to the “LOCK” position.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid off.
Push the tab in and lift the lid off.STEP1
STEP2

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4-3. Do-it-yourself maintenance
Driver’s side instrument panelLift the lid off while pushing the
tabs on either side.
Passenger’s side instrument panel Lift the lid off while pushing the
tabs on either side.
After a system failure, see “Fuse layout and amperage ratings”
( P. 314) for details about which fuse to check.
Remove the fuse with the pull-
out tool.
STEP4
STEP5

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4-3. Do-it-yourself maintenance
4
Maintenance and care
Check if the fuse has blown.
Type A (blade type fuse)
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 (cartridge type fuse)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.
STEP6

314
4-3. Do-it-yourself maintenance
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1ABS NO.240Anti-lock brake system
2ABS NO.150Anti-lock brake system
3AHC50Active height control suspension
(AHC)
4WIP-S7. 5No circuit
5TOW I N G30Trailer lights
6MIR HTR15Outside rear view mirror defogger
7RR HTR10Rear air conditioning system
8HAZ-TRN15Emergency flashers, Turn signal lights

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4-3. Do-it-yourself maintenance
4
Maintenance and care
FuseAmpereCircuit
9ALT-S7. 5Charging system
10NV-IR20Lexus night view system
11FR FOG15Fog lights
12TOWING BRK30Trailer lights
13HEAD CLNER20Headlight cleaner
14FR-IG10Charging system
15PA N E L7. 5Instrument panel light
16TOW I N G TA I L30Trailer lights
17TA I L15Parking lights, Tail lights
18BAT30All components in “ECU-B2”
19TEL7. 5Lexus Link System
20AMP30Audio system
21EFI or ECD No.125
Multiport fuel injection system/
Sequential multiport fuel injection
system
22AM215All components in “IGN”
23ETCS10
Multiport fuel injection system/
Sequential multiport fuel injection
system
24HORN10Horns
25HEAD
(RH-LWR)10Right-hand headlight (low beam)
26HEAD (LH-LWR)10Left-hand headlight (low beam)
27HEAD (RH-UPR)20Right-hand headlight (high beam)
28HEAD (LH-UPR)20Left-hand headlight (high beam)

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4-3. Do-it-yourself maintenance
■Driver’s side instrument panel
FuseAmpereCircuit
29AIR PUMP50
Multiport fuel injection system/
Sequential multiport fuel injection
system
30A/F HTR15
Multiport fuel injection system/
Sequential multiport fuel injection
system
FuseAmpereCircuit
1PWR OUTLET15Po w e r o u t l e t s
2CIG15Cigarette lighter
3ACC7. 5Instrument panel light
4AM17. 5
Multiport fuel injection system/
Sequential multiport fuel injection
system
5DEFOG20Rear window defogger
6AHC-B15Active height control suspension
(AHC)
7FUEL HTR20Fuel heater
8POWER HTR7. 5Po w e r h e a t e r

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4-3. Do-it-yourself maintenance
4
Maintenance and care
FuseAmpereCircuit
9AHC-IG20Active height control suspension
(AHC)
10EFI or ECD No.210Emission control system
11GAUGE 110Gauges and meters
12ECU-IG 110
Multiport fuel injection system/
Sequential multiport fuel injection
system
13ECU-B110Navigation system
14DBL LOCK15Double lock system
15A/C15Air conditioning system
16STOP15Stop lights
17OBD-27. 5On-board diagnosis system
18IDLE UP7. 5Idle-up system
19LH SEAT30Power seat system
20DOOR25Power door lock system, Power win-
dows
21SUN ROOF25Electronic moon roof
22RR WIPER15Rear wiper system

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4-3. Do-it-yourself maintenance
■Passenger’s side instrument panel
FuseAmpereCircuit
1ECU-B210Power door lock system, Power win-
dow
2DIFF20Four-wheel drive system
3WA S H E R15Windshield washer
4RADIO10Audio system
5DOME10Interior lights
6VGRS40Variable gear ratio steering system
7P/ W ( F L )20Po w e r w i n d o w
8P/ W ( R L )20Po w e r w i n d o w
9WIPER25Windshield wiper
10ECU-IG 210Rear air conditioning system
11SEAT HTR15Seat heater
12GAUGE 210Back-up lights
13MET7. 5Gauges and meters
14IGN7. 5
Multiport fuel injection system/
Sequential multiport fuel injection
system
15SECURITY7. 5Theft deterrent system