ENGINE
349
FUEL PUMP SHUT OFF SYSTEM
The fuel pump shut off system stops supplying fuel to the
engine to minimize the risk of fuel leakage when the engine
stalls or an airbag inflates upon collision. To restart the engine
after the fuel pump shut off system activates, turn the ignition
switch to “ACC” or “LOCK” once and start it.
CAUTION
Inspect the ground under the vehicle before restarting
the engine. If you find that liquid has leaked onto the
ground, it is the fuel system has been damaged and it is
in need of repair. In this case, do not restart the engine.
FACTS ABOUT ENGINE OIL CONSUMPTION
Functions of engine oil
Engine oil has the primary function of lubricating and cooling
the inside of the engine, and plays a major role in maintaining
the engine in proper working order.
Engine oil consumption
It is normal that an engine should consume some engine
oil during normal engine operation. The causes of oil
consumption in a normal engine are as follows.
Oil is used to lubricate pistons, piston rings and cylinders.
A thin film of oil is left on the cylinder wall when a piston
moves downwards in the cylinder. High negative pressure
generated when the vehicle is decelerating sucks some of
this oil into the combustion chamber. This oil as well as
some part of the oil film left on the cylinder wall is burned by
the high temperature combustion gases during the
combustion process.
Oil is also used to lubricate the stems of the intake valves.
Some of this oil is sucked into the combustion chamber
together with the intake air and is burned along with the fuel.
High temperature exhaust gases also burn the oil used to
lubricate the exhaust valve stems.
ELECTRICAL COMPONENTS
392
No.FUSEAMPERECIRCUIT
1A/F25Multiport fuel injection
system/sequential multiport
fuel injection system
2DOOR125
Multiplex communication
system (power door lock
system, auto−door locking
system, wireless remote
control system)
3TEL5No circuit
4AM230All components in “IGN” and
“IG2” fuses and starting system
5EFI20Multiport fuel injection
system/sequential multiport
fuel injection system
6ALT S5Charging system
7HEAD LH
UPR10Left −hand headlight (high
beam)
No.FUSEAMPERECIRCUIT
8ETCS10Multiport fuel injection
system/sequential multiport
fuel injection system
9HORN10Horns
10IGN15Starting system
11HEAD RH
UPR10Right −hand headlight (high
beam)
12HAZ15Emergency flashers
13D.C.C30All components in “ECU− B”,
“RAD NO.1” and “DOME” fuses
14IG210
Multiport fuel injection
system/sequential multiport
fuel injection system, SRS
airbag system, seat belt
pretensioners, cruise control
system
15ST5Starting system
16ADJ PDL30Power adjustable pedals
17CDS30Electric cooling fan
ELECTRICAL COMPONENTS
394
No.FUSEAMPERECIRCUIT
32ECU B10
Multiplex communication
system (power door lock
system, security system,
auto−door locking system,
automatic light control system,
headlight delay off system, tail
light auto cut system,
illuminated entry system,
daytime running light system,
wireless remote control
system) air conditioning
system, electronic modulated
suspension, driving position
memory system, front
passenger seat position
memory system
33DOME7.5
Ignition switch light, interior
light, personal lights, foot
lights, door courtesy lights,
trunk light, vanity lights, garage
door opener, clock, outside
temperature gauge,
multi− information display
No.FUSEAMPERECIRCUIT
34CIG15Cigarette lighter
35ECU
ACC5
Power rear view mirrors, clock,
multi −information display,
driving position memory
system, front passenger seat
position memory system
36RAD NO.210Audio system, navigation
system
37POWER
POINT15Power outlet
38RAD NO.120Audio system, navigation
system
39GAUGE110
Gauges and meters, clock,
outside temperature gauge,
multi −information display, shift
lock system
40ECU IG10
SRS airbag system, power
windows, anti− lock brake
system, electronic modulated
suspension, driving position
memory system, front
passenger seat position
memory system
41WIPER25Windshield wipers
42HTR10Air conditioning system
BODY
4143. Wax the vehicle again when water does not bead but
remains on the surface in large patches.
Windshield washer nozzles:
Make sure that the nozzles do
not become blocked when waxing. If a nozzle becomes
blocked, contact your Lexus dealer to have the vehicle
serviced.
NOTICE
If a nozzle becomes blocked, do not try to clear it with
a pin or other object. The nozzle will be damaged.
CLEANING THE INTERIOR
CAUTION
Be careful not to splash water or spill liquid on the
floor. This may prevent the side airbags from
activating correctly, resulting in serious injury.
Do not wash the vehicle floor with water, or allow
water to get onto the floor when cleaning the vehicle
interior or exterior. Water may get into audio system
components or other electrical components above or
under the floor carpet (or mat) and cause a
malfunction; and it may cause body corrosion.
Leather trimmed Interior
The selected leather is used in your Lexus. Due to
characteristics of leather products, some parts of leather may
be rough, uneven or scratched originally.
To keep good appearance, we recommend you to clean it
periodically twice a year.
