ECU MITSUBISHI LANCER EVOLUTION IX 2005 Repair Manual

CIRCUIT DIAGRAMS - ENGINE CONTROL SYSTEM3-30
Engine control system (continued)
Engine control relay
Air flow
sensor
Engine
ECU
•ACD (vehicle
w/out AYC)
•ACD, AYC Air pressure
sensor Intake temp.
sensor J/C (6)
(Engine control relay)
Exhaust cam
position
sensorIntake cam
position
sensor
Throttle position
sensorCoolant temperature
sensor Air temperature
sensor

CIRCUIT DIAGRAMS - ENGINE CONTROL SYSTEM3-32
Engine control system (continued)
Ignition
switch (ST)
Starter
relayIdle speed
control
servo
Fuel
pressure
solenoid
valveWaste gate
solenoid
valve 1
Engine ECU
Power steering fluid
pressure switch Engine speed
detection connectorEngine control relay

CIRCUIT DIAGRAMS - ENGINE CONTROL SYSTEM3-34
Engine control system (continued)
Engine ECU
Engine immobiliser
system
Diagnosis
connector
Diagnosis
connectorFusible link
Vehicle speed
sensor generic fuse
J/B
()
Front sideFront side

CIRCUIT DIAGRAMS - ENGINE CONTROL SYSTEM3-35
J/B
(Fuel pump relay 2)
Fuel pump
relay 3Fuel pump
register
Fuel pump
and fuel
gauge unit
(main) •ACD, AYC
•ACD (vehicle
w/out AYC)
Engine ECU
Back-up
power supply •Windscreen washer /
wiper
•Needle meters
•Electric stowable remote
control door mirrors
•Generic spare connector
•Cabin lights, boot
compartment lights,
ignition key cylinder
illumination light, door
ajar indicator light Note:*

CIRCUIT DIAGRAMS - COOLING3-36
COOLING
Input signals
•A/C switch
•Vehicle speed sensor
•Cooling temp. sensor Fusible
link Engine
control relay
Radiator fan
control relay
Radiator fan
motor Smoothing
circuit
Field-effect
transistor circuit Input signal
processor
Drive circuit
Current
detector Temperature
detector
Radiator fan controller
Engine ECU

CIRCUIT DIAGRAMS - COOLING3-37
Battery
Dedicated
fuseIgnition
switch (IG2)
•Intercooler water
spray
•Heater
•Full auto A/C
•Manual A/C
•Windscreen washer /
wiper
•Turn signal lights,
hazard lights
•Tail lights, position
lights, licence plate
lights, lighting monitor
warning buzzer
•Fog lamps
•Headlights
•Headlight levelling
system Condenser
fan relay
(LO) Condenser
fan relay
(HI)
Condenser
fan motor
Engine ECU

CIRCUIT DIAGRAMS - LIGHTING3-38
LIGHTING
Headlight
Battery
Front ECU
Dedicated
fuse
Headlight
ASSY
(LO : RH)Headlight
ASSY
(LO : LH)Headlight
(HI : RH)
Dummy connectorHeadlight
(HI : LH)Combination
meter Headlight
relay : LOHeadlight
relay : HI
((
))

CIRCUIT DIAGRAMS - LIGHTING3-42
Headlight
Battery
Front ECU
Dedicated
fuse
Discharge ECU Discharge ECU
Discharge light sourceDischarge light source
Headlight
levelling
systemHeadlight
relay : LOHeadlight
relay : HI
((
))
Headlight
ASSY
(LO:RH)Headlight
ASSY
(LO:LH)Headlight
(HI:RH)Headlight
(HI:LH)Combination
meter

CIRCUIT DIAGRAMS - LIGHTING3-46
Tail light, front side light, licence plate light, lighting monitor buzzer
Battery
Front ECU
Dedicated
fuse
Headlight
ASSY
(position : LH)Headlight
ASSY
(position : RH)Tail light
relay
()Note :
*1: Except discharge type headlights
*2: Discharge type headlights
Rear
combination light
(Tail : LH)Licence
plate
lights

CIRCUIT DIAGRAMS - LIGHTING3-47
Generic
fuse
J/B
(
)
•Full auto A/C
•Manual A/C
•Cooling
•Intercooler
water spray
•Heater
•Full auto A/C
•Manual A/C •ABS
•ACD, AYC
•ACD (vehicle w/out AYC)
•SRS airbags, seatbelt
pre-tensioners
•Intercooler water spray
•Windscreen washer /
wiper
•Warning lights
•Engine control
•Needle meters
•Charging
•Electric stowable remote
control door mirrors
•Generic spare connector
•Cabin lights, boot
compartment lights,
ignition key cylinder
illumination light, door
ajar indicator light Ignition switch (IG2)
Ignition switch (IG1)
Column switch
Column ECU
Lighting
switch
Combination
meter
Rear
combination
light
(tail : RH)
(
)
Power
supply