engine MITSUBISHI LANCER EVOLUTION VIII 2004 Repair Manual

CIRCUIT DIAGRAMS - ENGINE CONTROL3-17
Ignition switch
Fuel
pump
relayFuel
pump
relay
Combination
meter
•Windscreen
washer/wiper
•Turn signal lights /
hazard warning
lights
•Tail lights, position
lights, licence
plate lights,
lighting monitor
warning buzzer
•Fog lights
•Headlights
•Rear
washer/wiper

CIRCUIT DIAGRAMS - ENGINE CONTROL3-18
Engine Control (cont’d.)
Engine control relay
Air
processor
Engine
ECU
Throttle position
sensorWater temperature
sensor
Atmospheric
pressure sensor
Intake air
temperature
sensor
Cam shaft
position sensor

CIRCUIT DIAGRAMS - ENGINE CONTROL3-19
Engine control relayJ/C (6)
(Engine control relay)
Crank angle
sensor
Register (for
indictor)
IndicatorIndicatorIndicatorIndicator
Engine
control relay
Knock
sensor
O2sensor

CIRCUIT DIAGRAMS - ENGINE CONTROL3-20
Engine Control (cont’d.)
Ignition
switch (ST)
Engine control relay
Starter
relay
Idle speed
control
servo
Fuel
pressure
solenoid
valve
Waste
gate
solenoid
valve
Engine ECU
Engine speed
detection
connector
Power steering fluid
pressure switch

CIRCUIT DIAGRAMS - ENGINE CONTROL3-21
Engine control relay
Waste gate
solenoid
valve 2Purge control
solenoid
valve
Secondary
air control
solenoid
valveIntercooler water spray
•Full auto A/C
•Manual A/C
•Cooler•Heater
•Full auto A/C
•Manual A/C

CIRCUIT DIAGRAMS - ENGINE CONTROL3-22
Engine Control (cont’d.)
J/B
Common
fuse
()2
Fusible link1Engine ECU
Vehicle
speed
sensor
Engine
immobilizer
system
Diagnostics
connector
Diagnostics
connector
Front viewFront view

CIRCUIT DIAGRAMS - ENGINE CONTROL3-23
Remarks
* :
•Windscreen washer / wiper
•Meter gauges
•Electric retractable door mirrors
•Generic spare connectors
•Cabin lights, boot interior light,
ignition key cylinder
illumination light, door not
properly closed reminder light
J/B
(Fuel pump relay 2)
Fuel pump
relay 3Fuel
pump
register
Fuel pump
& fuel gauge
unit (main)
Back-up
power supply
Engine ECU

CIRCUIT DIAGRAMS - AIR CONDITIONING3-28
Manual Air Conditioning (cont’d)
Fusible link2Engine control relay
Radiator fan
control relay
Radiator fan controller
Input signal
processor
Temperature
detection
Drive circuit
Current
detection
Equalizing
circuit
Field effect
transistor circuit
Radiator fan
motor

CIRCUIT DIAGRAMS - AIR CONDITIONING3-29
General
fuse
Condenser
fan relay
(HI)
Condenser
fan motor
Battery
J/C (2)
(General fuse)
5
Engine ECU
•Windscreen wiper /
washer
•Indicator lights,
hazard warning lights
•Tail lights, side
lights, licence plate
lights, lighting
monitor warning
buzzer
•Fog lights
•Headlights
•Headlight levelling
system

CIRCUIT DIAGRAMS - AIR CONDITIONING3-30
Manual Air Conditioning (cont’d)
Battery
J/C(2)
(General fuse)5Radiator fan
controller
A/C
compressor
relay
General fuse
A/C
compressor
Cooling
temperature
switch
Magnetic
switch
Dual
pressure
switchLow pressure side
ON
OFF
: 196kPa
OFF
ON
: 221kPa
High pressure side
ON
OFF
: 3138kPa
OFF
ON
: 2550kPa
Engine ECU