2004 MITSUBISHI LANCER EVOLUTION VIII relay

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 CONTROL3-23
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 CONDITIONING3-26
Air Conditioning
Manual Air Conditioning
Fusible
link1Ignition
switch (IG2)
Blower
relay
Blower
switch
Register
Blower
motor
Intercooler
water spray

CIRCUIT DIAGRAMS - AIR CONDITIONING3-27
J/B
(general fuse)5
J/B (general
fuse)
5
Front ECU
(tail light relay)
Register
Air thermo sensor
Internal / external
changeover
damper motor
Special fuse
Tail lights, side lights,
licence plate lights,
lighting monitor
warning buzzer
•Meter gauge
•Tail lights, side
lights, licence plate
lights, lighting
monitor warning
buzzer
A/C switch, internal/external changeover damper motor, ILL
Demister

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