ENGINE — 1ZZ-FE ENGINE

179EG15

Battery

IgnitionSwitch

Power Steering ECU

CoolingFan Relay

Meter ECUAir ConditioningControl

Circuit Opening RelayECM

DLC3

VSV (for EVAP)

Throttle Position Sensor

CharcoalCanister

VSVfor PressureSwitchingValve

AirCleaner

Air

Mass Air FlowMeter Built-in Intake Air Temp. Sensor

IAC Valve

Camshaft Position Sensor

CamshaftTiming OilControl Valve

Injector

DIS

VVT-i

Knock Sensor

Crankshaft Position Sensor

Heated Oxygen Sensor Bank 1, Sensor 1

Heated Oxygen Sensor Bank 2, Sensor 1

Fuel Pump

CoolingFan Motor

VehicleSpeed Signal

MIL

Heated Oxygen Sensor Bank 1, Sensor 2

Engine CoolantTemp. Sensor

VaporPressureSensor

VSVfor CanisterClosedValve

35

3. Engine Control System Diagram

ENGINE — 1ZZ-FE ENGINE

179EG16

Heated OxygenSensor (Bank 2, Sensor 1)

ECM

VSV (for EVAP)Ignition Coilwith Igniter

Injector

Camshaft TimingOil Control Valve

CrankshaftPosition Sensor

Knock Sensor

CamshaftPositionSensor

Heated OxygenSensor (Bank1, Sensor1)

Engine CoolantTemp. Sensor

Mass Air FlowMeterBuilt-in Intake Air Temp. Sensor

Vapor PressureSensor

VSVfor PressureSwitching Valve

CharcoalCanister

HeatedOxygenSensor Bank 1,Sensor 2

VSVfor CanisterClosed Valve

36

4. Layout of Main Components

ENGINE — 1ZZ-FE ENGINE 37

5. Main Components of Engine Control System

The main components of the 1ZZ-FE engine control system are as follows:

Components Outline Quantity

Mass Air Flow Meter Hot-Wire Type 1

Crankshaft Position Sensor (Rotor Teeth) Pick-Up Coil Type (36-2) 1

Camshaft Position Sensor (Rotor Teeth) Pick-Up Coil Type (3) 1

Throttle Position Sensor Linear Type 1

Knock Sensor Built-In Piezoelectric Element Type 1

Oxygen Sensor

Heated Oxygen Sensor(Bank 1, Sensor 1)(Bank 2, Sensor 1)(Bank 1, Sensor 2)

3

Injector 12-Hole Type 4

IAC Valve Rotary Solenoid Type(1-Coil Type) 1