2.2.5 Disassemble View
2.2.5.1 Throttle Body Assembly

2

5

1

4

3

6

3

3

3

6

FE02-2004b

Legend

1. Idle Air Intake Channel
2. Idle Speed Control Valve
3. Throttle Butterfly Valve Control Components
4. Throttle Position Sensor

5. Throttle Limit Screw
6. Throttle Cable Mounting Bracket

Engine

Control System JL4G18-D

2-27

2.2.6 Schematic
2.2.6.1 Schematic

Engine 
Control 
Module

1. Ignition Switch
2. Crankshaft Position Sensor
3. Camshaft Position Sensor
4. Intake Air Pressure Temperature Sensor
5. Knock Sensor
6. Throttle Body Position Sensor
7. Radiator Surface Temperature Sensor
8. Engine Coolant Temperature Sensor
9. Vehicle Speed Sensor
10. Pre-catalytic Oxygen Sensor
11. Post-catalytic Oxygen Sensor
12. Air-conditioning Pressure Switch
13. Power Steering Switch
14. Defroster Heater Enable Input
15. CAN Bus
16. Serial Data Bus
17. Battery

1. Idle Air Control Motor
2. 1-2-3-4 Cylinder Fuel Injector
3. Ignition Coil
4. Variable Valve Timing Solenoid
5. Evaporative emission canister solenoid
6. Main Relay
7. Fuel Pump Relay and Fuel Pump
8. Cooling Fan Low Speed Relay
9. Cooling Fan High Speed Relay
10. Air Conditioning Compressor Relay
11. CAN Bus
12. Serial Data Bus
13. Oxygen Sensor

FE02-2005b

2-28

Control System JL4G18-D

Engine

04

12

25

18

05

01

Evaporative Canister
Solenoid

VVT Solenoid

To Ignition Coil

Ignition Relay

Ignition Switch

Anti-theft
Module

To Rearview Mirror 
Heater

Main Relay

Engine Control Module

Fuel Pump Relay

FE02-2101b

Engine

Control System JL4G18-D

2-29

IF

29

23

Ignition Relay

Engine Control Module

Pressure 
Switch

To Air 
Conditioning

Power Steering Switch

Idle 
Speed 
Control 
Valve

Engine Coolant Temperature Sensor

Evaporator Temperature Sensor

Intake Air Temperature Sensor

Intake Air 
Pressure 
Sensor

Knock Sensor

Fan 
Assembly

A/C Relay

Battery

Fan High Speed Relay

1,4 Ignition Coil

Fan Low Speed Relay

2,3 Ignition Coil

Battery

Battery

Battery

Compressor 
Clutch

FE02-2102b

2-30

Control System JL4G18-D

Engine