ignition LEXUS LS430 2006 Repair Manual

5
When trouble arises
353
5-2. Steps to take in an emergency
If the engine will not start
If the engine will not start, even though correct starting procedures are being
followed (P.94), consider each of the following points. 
Contact your Lexus dealer if the problem cannot be repaired, or if repair pro -
cedures are unknown.
■ The engine will not start even wh en the starter motor operates nor-
mally
One of the following may be the cause of the problem.
• There may not be sufficient fuel in the vehicle’s tank. 
Add fuel to the vehicle.
• The engine may be flooded. 
Try to restart the engine once mor
e following correct starting
procedures (
P. 94 ). Hold the ignition switch in the START posi -
tion for a slightly longer period (u p to a maximum of 15 seconds).
■ The star
ter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
One of the following may be the cause of the problem.
• The battery may be discharged. (
P.356 )
• The battery terminal connectio ns may be loose or corr
oded.
■ The star
ter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
• One or both of the battery terminals may be disconnected.
• The battery may be discharged. (
P.356 )
• There may be a malfunction in the engine immobilizer system.  (
P.54)

354
5-2. Steps to take in an emergency
If the transmission selector lever cannot be shifted from P
If the transmission selector lever cannot be shifted with your foot on the
brake, there may be a problem with the shift lock system (a system to prevent
accidental operation of the selector lever). Have the vehicle inspected by
your Lexus dealer immediately.

The following steps may be used as an
emergency measure to ensure the
selector lever can be shifted.
Set the parking brake.
Turn the ignition switch to ACC.
Depress the brake pedal.
Pry the cover up with a flat head
s
crewdriver or equivalent.
Insert your finger, the sc rewd
river
or equivalent into the hole to push
down the shift lock override but -
ton. You can shift the selector lever
while pushing the button.

367
6-1. Specifications
6
Vehicle specifications
Cooling system
Ignition system
Capacity10.0 qt. (9.5 L, 8.4 lmp.qt.)
Coolant type
Use either of the following.
• “Toyota Super Long Life Coolant”
• Similar high quality ethylene glycol based non-silicat
e, non-amine, non-nitrite, and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.
Spark plug
-MakeDENSOSK20R11
NGKIFR6A11
- Gap0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not
adjust gap when tuning engine.

385
6-2. Owner’s customize
6
Vehicle specifications
ItemFunctionDefaultsettingAfter
customization
Automatic light
control system 
(  P.110
)
Ambient light sensor sensitivityCan be set to desired level
Time period before lights turn off (if
a door is opened and closed, and
ignition switch is in ACC or
LOCK)
30 seconds
OFF
60 seconds
90 seconds
Po w e r 
windows 
(  P.45
)
Integrated door lock operationONOFF
Integrated wireless remote con -
trol operationONOFF
Moon roof
(  P.48
)
Integrated door lock operationONOFF
Integrated open/close operation
with door keyONOFF
Integrated wireless remote con -
trol operationONOFF
Integrated open/close operation
with wireless remote controlONOFF
Illumination
(  P.198
)
Operation when the doors are
unlockedONOFF
Time period before lights turn off15 seconds7. 5 s e c o n d s
30 seconds
Steering column 
(  P.40
)Automatic tilt-away functionONOFF
Alarm 
(  P.55
)
Operation indicator light (turn sig -
nal light)ONOFF
Wireless remote control theft
deterrent buzzerONOFF

394
Alphabetical index
Driving position memory ......................25
Dynamic radar/laser 
cruise control ....................................... 129
ECT Pattern select switch ......................... 99
Electronically modulated 
air suspension ...................................... 138
Engine Compartment ..................................... 262
Hood........................................................ 260
How to start the engine..................... 94
If your vehicle will not start............ 353
Ignition switch......................................... 94
Malfunction indicator lamp........... 330
Engine coolant Capacity ................................................. 367
Checking ............................................... 268
Preparing and checking 
before winter ......................................149
Engine coolant temperature 
gauge....................................................... 103
Engine immobilizer system.................. 54
Engine oil Capacity ................................................. 366
Checking ............................................... 263
Preparing and checking 
before winter ......................................149
Event data recorder ............................ 326
First-aid kit net........................................ 227
Fog lights Switch .......................................................... 113
Wattage.................................................. 372
Floor lights ................................................ 198Floor mats ................................................
224
Fluid Brake ........................................................ 270
Power steering .................................... 272
Washer.................................................... 277
Front passenger's seat
belt 
reminder light ..................................... 332
Front seats Adjustment ............................................... 22
Fuel Capacity ................................................ 366
Fuel gauge .............................................. 103
Information ............................................ 373
Low fuel level warning light ........... 331
Refueling ..................................................... 51
Fuel filler door ............................................. 51
Fuel pump shut off system................. 325
Fuses Blade ...................................................... 298
Cartridge............................................... 309
Gas station information ..................... 402
Garage door opener .......................... 232
Gauge and meter.................................. 103
Glove box ................................................ 202
Glove compartment light Wattage .................................................. 372
Graphic information ............................ 109
Head restraints Adjusting..................................................... 31
Headlight aim ............................................ 311
Headlight cleaner.................................... 117
Headlights Operation ................................................. 110
E
F
G
H

395
Alphabetical index
Switch .........................................................110
Wattage .................................................. 372
Heaters Seat heaters............................................ 218
Side mirror ................................................ 43
High mounted stop light Replacing bulbs.................................... 314
Wattage .................................................. 372
Hood ......................................................... 260
I/M test ..................................................... 255
Ignition Keys ................................................................. 2
Switch .......................................................... 94
Ignition switch light ................................ 198
Illuminated entry system ..................... 198
In case of an emergency If the battery runs out....................... 356
If you cannot shift automatic 
transmission selector lever ....... 354
If you have a flat tire........................... 347
If you lose your keys ........................ 355
If your vehicle becomes 
stuck ....................................................... 361
If your vehicle needs to 
be towed ............................................ 320
If your vehicle overheats................ 359
If your vehicle will not start............ 353
If you think something is 
wrong................................................... 324
Indicator lights ......................................... 105
Initializing your lexus........................... 387
Inside rear view mirror........................... 42
Interior light .............................................. 199Jack
Positioning the jack ............................. 261
Replacing the wheel ......................... 287
Jack handle.............................................. 347
Jump starting .....
........................................ 353
Key reminder buzzer .............................. 15
Keys Flat key........................................................ 95
If you lose your keys ........................ 355
Ignition switch ......................................... 94
Key number ................................................. 2
Keys ................................................................. 2
Mechanical key ................................... 295
Replacing battery ............................... 295
Wireless remote control ..................... 12
Knee airbag.................................................. 61
Lexus park assist system Lexus park assist system ................... 118
Warning message ............................. 334
License plate lights Wattage .................................................. 372
Light bulbs Replacing ................................................ 314
Wattage .................................................. 372
Lights Fog lights switch .................................... 113
Headlights switch.................................. 110
Interior light switch ............................... 20
Personal light switch........................ 200
Replacing light bulbs ......................... 313
Turn signal lever .................................... 101
Vanity lights ......................................... 209
Wattage .................................................. 372
I
J
K
L

398
Alphabetical index
Sub key............................................................2
Sun shade (moon roof) .......................... 48
Sun shades Rear power sunshade ..................... 225
Manual sunshade .............................. 225
Sun visors ................................................ 208
Switch ECT pattern select ............................... 99
Fog light switch ....................................... 113
Ignition switch......................................... 94
Light switches ......................................... 110
Power door lock switch ...................... 15
Power window switch ........................ 45
Window lock switch ........................... 45
Tachometer .............................................. 103
Tail lights Wattage.................................................. 372
Theft deterrent system Alarm .......................................................... 55
Engine immobilizer 
system ..................................................... 54
Theft prevention labels .......................... 57
Tire inflation pressure ......................... 283
Tires Chains ...................................................... 150
Checking ............................................... 278
If you have a flat tire .......................... 347
Inflation pressure................................ 283
Information............................................ 376
Replacing ............................................... 347
Rotating tires ........................................ 278
Size ........................................................... 370
Snow tires ................................................. 151
Tools ........................................................... 347Total load capacity ................................
148
Towing Dinghy towing ...................................... 160
Emergency towing ............................. 321
Trailer towing ........................................ 152
TRAC (traction control) Traction control.................................... 140
Warning message ............................ 334
Trip meter ................................................ 103
Trunk Cool box ................................................ 229
Opener ....................................................... 19
Trunk-lid closer ...................................... 20
Trunk storage extension ................ 228
Trunk light Wattage .................................................. 372
Turn signal lights Replacing light bulbs ......................... 314
Switch .......................................................... 101
Wattage .................................................. 372
Under-dash lights Wattage .................................................. 372
Vanity lights Vanity lights.......................................... 209
Wattage .................................................. 372
Vanity mirrors ........................................ 209
Vehicle identification number......... 365
Vehicle load capacity .......................... 148
VSC (Vehicle Stability Control) Vehicle stability control.................... 140
Warning message ............................ 334
T
U
V