2012 Lexus GX460 light

630
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
■When to replace your vehicle’s tires
Tires should be replaced if:
●You have tire damage such as cuts, splits, cracks deep enough to expose the
fabric or bulges indicating internal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the size or
location of a cut or other damage
If you are not sure, consult with your Lexus dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered,
the tire pressure warning system will not work properly. After driving for about 20
minutes, the tire pressure warning light come s on after blinking for 1 minute to indi-
cate a system malfunction.
■Tire lif e
Any tire over 6 years old must be checked by a qualified technician even if they
have seldom or never been used or damage is not obvious.
■If the tread on snow tires wears down below 0.16 in. (4 mm) on snow tires
The effectiveness of the tire as snow tires is lost.
■Maximum load of tire
Check that the number given by dividing the maximum load by 1.10 of the replace-
ment tire is greater than 1 /2 of the Gross Axle Weight Ratings (GAWR) of either
the front axle or the rear axle, whichever is greater.
For the GAWR, see the Certification Label.
For the maximum load of the tire, see the load
limit at maximum cold tire inflation pressure
mentioned on the sidewall of the tire.
(→ P. 76 8 )

651
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
6SUB BATT30 ATo w i n g
7IG220 AInjector, ignition, meter
8HORN10 AHorn
9EFI25 AEFI ECU, A/F heater relay, fuel pump
relay, EFI NO.2
10A/F20 AA/F SSR
11FUEL OPN 10 AFuel lid opener
12S/HTR RR20 ARear seat heater
13FOLD SEAT LH30 AFolding seat (left)
14FOLD SEAT RH30 AFolding seat (right)
15TOW I N G TA I L30 ATo w i n g
16A/C COMP10 AAir conditioning system
17STRG HTR 10 ASteering heater
18CDS FAN20 ACondenser fan
19STOP10 A
Stop lights, high mount stop light, stop
light switch, VSC ECU, towing, Smart
access system with push button start
20AIR SUS NO.27. 5 AAIR SUS ECU
21H-LP RH-HI15 AHeadlight high beam (right)
22H-LP LH-HI15 AHeadlight high beam (left)
FuseAmpereCircuit

652
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
23HTR50 AAir conditioning system
24WIP WSH RR30 ARear window wipers and washer
25H-LP CLN30 AHeadlight cleaner
26ST30 ASTARTER MTR
27H-LP HI25 ADIM relay, headlights, daytime run-
ning light system
28ALT-S7. 5 AALT
29TURN & HAZ15 A
Front turn signal light, rear turn signal
light, side turn signal light, meter turn
signal light
30D/ L N O.125 ADoor lock motor, glass hatch opener
31ETCS10 AEFI ECU
32FUEL PMP15 AFPC
33TOW I N G30 ATo w i n g
34ALT140 A
Air conditioning system, AIR SUS,
headlight cleaner, towing, folding seat,
STOP, rear window defogger, MIR
HTR, CDS FAN, RR FOG, DEICER,
MG-CLT, RR SEAT HTR, STRG HTR,
J/B, INV, RR WIP, RR WSH
35P/ I - B80 AInjector, ignition, meter, EFI, A/F
heater, horn
FuseAmpereCircuit

653
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
36RAD NO.115 AAudio system, navigation system, rear
seat entertainment system
37AM27. 5 AStarter system
38RAD NO.210 ANavigation system
39MAYDAY7. 5 AMAYDAY
40AMP30 AAudio system
41ABS NO.150 AABS, VSC
42ABS NO.230 AABS, VSC
43AIR PMP50 AAir pump
44SECURITY10 ASECURITY
45SMART7. 5 ASmart access system with push button
start
46STRG LOCK20 ASteering lock system
47TOW I N G B R K30 ATo w i n g
48WIP RR15 ARear window wiper
49DOME10 A
Interior lights, personal lights, vanity
lights, door courtesy lights, footwell
lights, outer foot lights, overhead
module
FuseAmpereCircuit

654
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
50ECU-B10 A
BODY ECU, meter, heater, steering
sensor, wireless remote control, seat
position memory, tilt and telescopic
steering, multi display, Smart access
system with push button start, folding
seat, cool box, DSS#2 ECU, steering
switch, D-module switch, overhead
module
51WSH FR NO.27. 5 ADSS#1 ECU
52H-LP RH-LO15 AHeadlight low beam (right), headlight
leveling system
53H-LP LH-LO15 AHeadlight low beam (left), headlight
leveling system
54INJ10 ACoil, injector, ignition, noise filter
55EFI NO.210 A
O2 SSR, AFM, ACIS VSV, AI
COMB, KEY OFF PUMP, EYP VSV,
EGR VALVE, CANISTER VSV, AI
VSV RLY, AI PUMP HTR RLY
56WIP FR NO.27. 5 ADSS#1 ECU
57WSH RR15 ARear window washer
58SPARESpare fuse
59SPARESpare fuse
60SPARESpare fuse
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)Under the instrument panel
FuseAmpereCircuit
1P/O U T L E T15 APo w e r o u t l e t
2ACC7. 5 A
Outside rear view mirror motor,
BODY ECU, air conditioning system,
audio system, navigation system,
parking assist system, back up relay,
DSS#2 ECU, AT indicator, EFI ECU,
shift lock ECU, DCM, MAYDAY
ECU
3BKUP LP10 A
Back-up lights, audio system, multi
information display, DSS#2 ECU,
parking assist sensor
4TOW I N G B K L P10 ATo w i n g
5AV S20 AAir suspension system
6KDSS10 AKDSS ECU

656
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
74WD20 A4WD system, rear differential lock
8P/ S E AT F L30 AFront power seat (left)
9D/ L N O. 225 ADoor lock motor, glass hatch
opener, BODY ECU
10PSB30 APSB ECU
11TI & TE15 ATilt and telescopic steering
12FOG FR15 AFront fog lights
13OBD7. 5 ADLC 3
14A/C7. 5 AAir conditioning system
15AM17. 5 AStarting system
16DOOR RL25 ARear power window (left)
17ECU-IG NO.110 A
Shift lock ECU, VSC ECU, steering
sensor, yaw rate sensor, sequential
switch, auto wiper ECU, back up
relay, tilt & telescopic steering, PSB
ECU, DSS#1 ECU, front radar sensor,
AFS ECU, TIRE PRESS ECU,
DRIVER MON ECU
18IG17. 5 A
Front turn signal light, rear turn signal
light, side turn signal light, meter turn
signal light, trailer light, ALT, VSC, C/
C switch
FuseAmpereCircuit

657
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
19ECU-IG NO.210 A
Rear window defogger, outside rear
view mirror memory, seat heater/ven-
tilator switch, inverter relay, air condi-
tioning system, EC mirror, BODY
ECU, exhaust gas sensor, parking
assist sensor, navigation system,
DSS#2 ECU, meter switch, accessory
meter, folding seat ECU, O/H IG,
head light cleaner, rear air condition-
ing system, deicer, D-module, rain
sensor, air suspension, RR VLV ECU,
steering heater, LKA, P/SEAT IND
20S/HTR FR20 ASeat heater and ventilator
21P/ S E AT F R30 AFront power seat (right)
22DOOR P30 A
Front power window (passenger’s
side), outside rear view mirror mem-
ory
23DOOR10 APo w e r w i n d o w
24DOOR D25 AFront power window (driver’s side)
25DOOR RR25 ARear power window (right)
26S/ROOF25 AMoon roof
27WIP30 AWindshield wipers and washer
28WA S H E R20 AWindshield wipers and washer, rear
window wipers and washer
29COOLING10 ACool box
FuseAmpereCircuit