Lexus ES300 (2002 year). Manual — part 135

ENGINE – 1MZ-FE ENGINE

EG-31

211EG12

SENSORS

ACTUATORS

MASS AIR FLOW METER

IGNITION SWITCH

Starting Signal

Ignition Signal

POWER STEERING OIL

PRESSURE SWITCH

INTAKE AIR TEMP. SENSOR

ENGINE COOLANT TEMP. SENSOR

CRANKSHAFT POSITION SENSOR

VVT Sensor (Bank 1, Bank 2)

Camshaft Position Signal

THROTTLE POSITION SENSOR

AIR FUEL RATIO SENSOR

(Bank 1, Sensor 1)

AIR FUEL RATIO SENSOR

(Bank 2, Sensor 1)

HEATED OXYGEN SENSOR

(Bank 1, Sensor 2)

HEATED OXYGEN SENSOR

(Bank 2, Sensor 2)

VAPOR PRESSURE SENSOR

ACCELERATOR PEDAL POSITION SENSOR

STOP LIGHT SWITCH

KNOCK SENSORS

Combination Meter

Vehicle Speed Signal

PARK /NEUTRAL POSITION SWITCH

Neutral Start Signal

Shift Lever Position Signal

VG

STA

IGSW

PS

THA

THW

NE

VV1
VV2

VTA1, 2

VC

AFR

AFL

OX1B

OX2B

PTNK

VPA

VPA2

STP

KNK R

KNK L

SPD

NSW

P, R, N
D, 2, L

M

ECM

AICV

ACM1

ACIS

HAFR

HAFL

HT1B

HT2B

MREL

IGF

IGT1

IGT6

#10

#20

#30

#40

#50

#60

FC

ACI1

NO.1 INJECTOR

SFI

EFI MAIN RELAY

ETCS-i

THROTTLE CONTROL MOTOR

NO.2 INJECTOR

NO.3 INJECTOR

NO.4 INJECTOR

ESA

IGNITION COIL with IGNITER

SPARK PLUGS

AIR INTAKE CONTROL SYSTEM

VSV

ACTIVE CONTROL ENGINE MOUNT

VSV

ACIS

VSV

AIR FUEL RATIO SENSOR

HEATER CONTROL

AIR FUEL RATIO SENSOR

HEATER (Bank 1, Sensor 1)

AIR FUEL RATIO SENSOR

HEATER (Bank 2, Sensor 1)

OXYGEN SENSOR HEATER CONTROL

HEATED OXYGEN SENSOR

HEATER (Bank 1, Sensor 2)

HEATED OXYGEN SENSOR

HEATER (Bank 2, Sensor 2)

AIR FUEL RATIO SENSOR

HEATER RELAY

NO.5 INJECTOR

NO.6 INJECTOR

FUEL PUMP CONTROL

CIRCUIT OPENING RELAY

2. Construction

The configuration of the engine control system in the 1MZ-FE engine in the ’02 ES300 is as shown in the
following chart.

(Continued)

ENGINE – 1MZ-FE ENGINE

EG-32

211EG13

TRANSPONDER KEY

AMPLIFIER*

1

UNLOCK WARNING SWITCH*

1

CRUISE CONTROL SWITCH

A / T FLUID TEMPERATURE

SENSOR

SKID CONTROL ECU*

2

AIR CONDITIONING SWITCH*

3

AIR CONDITIONING ECU*

4

DATA LINK CONNECTOR 3

KSW

CCS

THO

TRC

ENG

A / C S

A / C S

SIL

TC

RXCK

CODE

TXCT

ECM

CF

W

ACMG

CCV

TBP

EVP 1

MALFUNCTION INDICATOR

LAMP

COOLING FAN CONTROL

COOLING FAN RELAYS

AIR CONDITIONING CONTROL

AIR CONDITIONING

MAGNET CLUTCH

EVAPORATIVE EMISSION

CONTROL

VSV

(for Canister Closed Valve)

VSV

(for Pressure Switching Valve)

VSV (for EVAP)

EFI MAIN RELAY

BATTERY

+B

BATT

*

1

: with Engine Immobiliser System

*

2

: with VSC System

*

3

: with Manual Air Conditioning System

*

4

: with Automatic Air Conditioning System

ENGINE – 1MZ-FE ENGINE

EG-33

211EG14

Mass Air
Flow Meter

Intake Air
Temp.
Sensor

VSV
(for Air Intake
Control Valve)

Pulsation
Damper

VSV
(for Canister
Closed Valve)

Vapor
Pressure
Sensor

Circuit
Opening
Relay

Fuel Pump

Ignition Switch

EFI
Main
Relay

MIL

Battery

ECM

Combination
Meter

Perk / Neutral Position Switch

Electronic Controlled
Transmission Solenoid Valve

Air
Conditioning
ECU*

DLC3

Stop Light Switch

Air Fuel Ratio Sensor Heater Relay

VSV
(for EVAP)

VSV
(for Pressure Switching Valve)

VSV (for ACIS)

Throttle
Position Sensor

Actuator

Camshaft Timing Oil
Control Valve

Injector

VVT
Sensor

Air Fuel Ratio
Sensor
(Bank 2,
Sensor 1)

TWC

TWC

Heated Oxygen Sensor
(Bank 2, Sensor 2)

Crankshaft
Position Sensor

Engine Coolant
Temp. Sensor

Ignition Coil
with Igniter

Air Fuel Ratio sensor
(Bank 1, Sensor 1)

Knock Sensor

Heated Oxygen Sensor
(Bank 1, Sensor 2)

TWC

3. Engine Control System Diagram

*: with Automatic Air Conditioning System

ENGINE – 1MZ-FE ENGINE

EG-34

211EG15

ECM

Mass Air Flow Meter

DLC3

VSV
(for Pressure Switching Valve)

Vapor Pressure Sensor

Fuel Pump

VSV
(for Canister Closed Valve)

VSV
(for Air Intake Control Valve)

Throttle Position
Sensor

VSV (for ACIS No.1)

Injector

Knock Sensor

VVT Sensor (Bank 1)

Air Fuel Ratio Sensor
(Bank 1, Sensor 1)

Air Fuel Ratio Sensor
(Bank 2, Sensor 1)

Heated Oxygen Sensor
(Bank 1, Sensor 2)

Heated Oxygen Sensor
(Bank 2, Sensor 2)

Camshaft Timing
Oil Control Valve

Crankshaft Position
Sensor

VVT Sensor (Bank 2)

Camshaft Timing
Oil Control Valve

Knock Sensor

Ignition Coil
with Igniter

VSV
(for ACIS No.2)

VSV
(for EVAP)

Engine Coolant
Temp. Sensor

4. Layout of Main Component