warning light MITSUBISHI LANCER EVOLUTION IX 2005 Workshop Manual

MPI – GENERAL13A-2
MPI system diagram
Engine ECU
H1. O
2 sensor
H2. Air flow sensor
H3. Intake air temp.
sensor
H4. Throttle position
sensor
H5. Intake Cam position
sensor
H6. Exhaust Cam
position sensor
H7. Crank angle
sensor
H8. Atmospheric
pressure sensor
H9. Water temp.
sensor
H10. Knock sensor
H11. Manifold absolute
pressure (MAP)
sensor
H12. Air temp. sensor• Power supply
• Ignition switch IG
• Ignition switch ST
• Vehicle speed
sensor
• A/C switch
• A/C load signal
• Power steering
fluid pressure switch
• Alternator FR signal
• Inter-cooler water spray
switch (auto)
•Inter-cooler water spray
switch (manual)I1. Injector
I2. ISC servo (Stepper
motor)
I3. Fuel pressure
control solenoid valve
I4. No. 1 Waste gate
solenoid valve
I5. No. 2 Waste gate
solenoid valve
I6. Purge control
solenoid valve
I7. Secondary air
control solenoid valve
I8. Oil feeder control
valve• Engine control relay
• Fuel pump relay 2,3
(ON/OFF)
• Fuel pump relay (HI/LO
switch)
• A/C relay
• Ignition coil
• Fan controller
• Condenser fan relay (HI)
• Condenser fan relay
(LO)
• Engine warning light
• Diagnosis output
terminal
• Alternator G terminal
• Inter-cooler water spray
relay
•Inter-cooler water spray
lamp
• O
2sensor heater
ÈÈ
I 6. Purge control
solenoid valve
I 7. Secondary
air control
solenoid valveCheck
valve
Secondary air
valve
To fuel
tank
H 6. Exhaust cam
position sensor
H 8. Atmospheric
pressure sensor
H 2. Air flow sensor
Intake
Waste gate actuator
I 4. No.1 waste gate
solenoid valve H 3. Intake air
temperature
sensor
I 5. No.2 waste gate
solenoid valve
H 1. O
2sensor
H 5. Intake cam
position sensorCatalyst
H 7. Crank angle sensor
H 10. Knock sensor
H 9. Water temperature sensor
I 1. Injector From fuel
pump
Fuel pressure
regulatorI 8. Oil feeder control
valve I 3. Fuel pressure
control solenoid
valve
Vacuum
tank
I 2. ISC servoH 11. MAP sensor
H 12. Air temperature sensor
H 4. Throttle
position
sensor
From fuel tank
Canister
By-pass valve

MPI – TROUBLESHOOTING
13A-5
TROUBLESHOOTING
1. Diagnosis Functions
1-1 Engine warning light (Check engine lamp)
Changes have been made to engine warning lights.
Checklist for engine warning lights.
1-2 Checking of freeze frame data
Additions have been made to the freeze frame data tables.
Checklist for data tables
1-3 Failsafe and back-up functions
If one of the diagnosis functions detects that one of the main sensors is malfunctioning, it will ensure that the car can be driven
safely, in accordance with the pre-set control logic.
Engine ECU
Air flow sensor (AFS)
Manifold absolute pressure (MAP) sensor system
Intake air temperature sensor
Throttle position sensor (TPS)
Water temperature sensor
Crank angle sensor
Exhaust cam position sensor
Injector
Ignition coil (with built-in power transistor)
Atmospheric pressure sensor
O
2sensor
O
2sensor heater
Fuel system malfunction
Knock sensor
Intake cam position sensor system
Oil feeder control valve system
Item numberType of data Units/condition
95MAP sensorkPa
Malfunctioning itemControl measures taken when a malfunction occurs
Air temperature sensorRegulation of the intake air temperature at 25ºC.
Exhaust cam position sensor(1) Simultaneous flushing out of all fuel pipes.
(But only if the No. 1 cylinder has not been detected in the
TDC position after the ignition switch has been turned "ON".)
(2) Cutting off the fuel 4 seconds after the malfunction has been
detected.
(But only if the No. 1 cylinder has not been detected in the
TDC position after the ignition switch has been turned "ON".)
Intake cam position sensorThe oil feeder control valve should be switched "OFF", and the
angle of the cam should be in the reset position.

3-1
SECTION 3
CIRCUIT DIAGRAMS
CONTENTS
J/B ............................................................3-4
J/C ............................................................3-6
Central Junction....................................3-11
Power Supply ........................................3-18
Starting System ....................................3-23
Ignition ...................................................3-24
Charging ................................................3-26
Engine Control ......................................3-28
Cooling ..................................................3-36
Lighting
Headlights (excl. discharge type).....................3-38
Headlights (discharge type) .............................3-42
Tail lights, position lights, licence plate
lights, lighting monitor report buzzer................3-46
Cabin lights, boot compartment lights,
ignition key cylinder illumination light,
door ajar indicator light ....................................3-50
Fog lamps ........................................................3-54
Headlight levelling system ...............................3-58
Signals
Turn signal lights, hazard warning lights .........3-60
Reversing lights ...............................................3-64
Stop lights ........................................................3-65
Horn .................................................................3-66
Meters
Needle meters..................................................3-68
Remaining fuel warning light, oil pressure
warning light, brake warning light,
seatbelt warning light .......................................3-70
Door Opening / Closing Control
Power windows ................................................3-72
Central door locking
(vehicle without keyless entry) .........................3-78
Central door locking
(vehicle with keyless entry) ..............................3-80
Temperature Control
Heater ..............................................................3-86
Manual air-conditioning ....................................3-90
Fully automatic air-conditioning .......................3-96
Vision / Safety
Windscreen washer / wipers ..........................3-104
Rear washer / wiper .......................................3-108
Demister
(vehicle with heater or manual A/C) ...............3-110
Demister, door mirror heating elements
(vehicle with full auto A/C)..............................3-112
Electric stowable remote control
door mirrors ....................................................3-114
Accessories
Spare audio connectors .................................3-118
Clock ..............................................................3-120
Cigarette lighter, ashtray illumination lamp ....3-121
Cont. on next page

CIRCUIT DIAGRAMS - J/C3-6
J/C
Note :
In the actual vehicle, any of the terminals connected inside the J/C
may be used. Therefore the terminal numbers indicated on the circuit
diagrams may not correspond to the terminal sequence in the vehicle.
• 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
•Rear washer /
wiper
Full auto A/C
Generic spare
connector
Generic spare
connectorFog lamps
Spare audio
connector
• Demister (vehicle w/out
full auto A/C)
• Demister, door mirror
heating elements (vehicle
with full auto A/C)
• Heater
• Full auto A/C
• Manual A/CCigarette
lighter, ashtray,
illumination
light
Clock• ACD (vehicle
w/out AYC)
• ACD, AYC
Head-light
levelling systemTurn signal
lights, hazard
lights
Inter-cooler
water spray• ACD (vehicle w/out AYC)
• ACD, AYC
• Intercooler water spray
• Clock
• Cigarette lighter, ashtray
illumination lights
• Needle meters
• Turn signal lights, hazard
lights
• Demister (vehicle w/out full
auto A/C)
• Demister, door mirror heating
elements (vehicle with full
auto A/C)
• Tail lights, position lights,
licence plate lights, lighting
monitor warning buzzer
• Generic spare connector
• Fog lamps
• Full auto A/C Clock
Spare audio
connector• ACD (vehicle
w/out AYC)
• ACD, AYC
• Engine control
• Warning lights
• Needle metersGeneric
fuse
J/B
(
)
Generic
fuse

CIRCUIT DIAGRAMS - J/C3-7
• Windscreen
washer / wiper
• Turn signal
lights, hazard
lights
• Tail lights,
position lights,
licence plate
lights, lighting
monitor
warning buzzer•Fog lamps
•Full auto A/C
•Headlights
•Headlight
levelling
system
•Manual A/C
•Cooling
• Windscreen
washer / wiper
• Turn signal
lights, hazard
lights• Tail lights,
position lights,
licence plate
lights, lighting
monitor
warning buzzer
• Fog lamps
• Headlights• Ignition key
reminder
buzzer
• Windscreen
washer / wiper
• Sunroof
• Turn signal
lights, hazard
lights
• Tail lights,
position lights,
licence plate
lights, lighting
monitor
warning buzzer• Power windows
• Fog lamps
• Headlight
• Rear washer /
wiper Generic spare
connector
Vehicle speed
sensor• Windscreen washer /
wiper
• Electric stowable
remote control door
mirrors
• Cabin lights, boot
compartment lights,
ignition key cylinder
illumination light, door
ajar indicator light
Diagnosis
connector• ABS
• ACD
(vehicle
w/out AYC)
• ACD, AYC Needle meters• Heater
• Full auto A/C
• Manual A/C
J/B
Sunroof
Power
windows• Windscreen
washer / wiper
• Turn signal
lights, hazard
lights
• Tail lights,
position lights,
licence plate
lights, lighting
monitor
warning buzzer
• Fog lamps
• Headlights
• Rear washer /
wiperDiagnosis
connectorReversing
lights
Rear washer/
wiper• Reversing lights
• Rear washer /
wiper Generic
fuse
(
)

CIRCUIT DIAGRAMS - J/C3-8
J/C (cont’d)
•Ignition key
reminder
buzzer
•Windscreen
washer / wiper
•Sunroof
•Security alarm
•Central door
locking
•Turn signal
lights, hazard
lights•Tail lights,
position lights,
licence plate
lights, lighting
monitor
warning buzzer
•Electric
stowable
remote control
door mirrors
•Power
windows
•Heater
•Fog lamps•Full auto A/C
•Headlights
•Manual A/C
•Rear washer /
wiper
•Cabin lights,
boot
compartment
lights, ignition
key cylinder
illumination
light, door ajar
indicator light•Ignition key reminder buzzer
•Intercooler water spray
•Security alarm
•Central door locking (vehicle
with keyless entry)
•Cabin lights, boot
compartment lights, ignition
key cylinder illumination light,
door ajar indicator light
•Warning lights
•Starting system
Electric stowable
remote control
door mirror
Headlight
levelling
system
•ABS
•ACD
(vehicle
w/out AYC)
•ACD, AYC•Clock
•Turn signal
lights,
hazard lights
Fog lamps
Headlight
levelling systemFog lamps
Cigarette
lighter
illumination
light•Demister (vehicle
w/out full auto A/C)
•Demister, door
mirror heating
elements (vehicle
with full auto A/C)
•Heater
•Full auto A/C
•Manual A/C•ACD (vehicle
w/out AYC)
•ACD, AYC
Intercooler
water spray
Turn signal lights,
hazard lightsNeedle meters

CIRCUIT DIAGRAMS - J/C3-9
SRS
airbags,
seatbelt
pre-
tensioners•ABS
•ACD (vehicle
w/out AYC)
•ACD, AYC
•Engine
immobiliser
system
•Engine controlDiagnosis
connector
Cabin lights,
boot compartment lights,
ignition key cylinder
illumination light, door
ajar indicator light•Central door locks
(vehicle with keyless
entry)
•Cabin lights, boot
compartment lights,
ignition key cylinder
illumination light, door
ajar indicator light•Warning lights
•Needle meters•Fog lamps
•Spare
connector for
fog lamps Fog lamps
• Spare
connector for
fog lamps
Clock Spare audio
connector
Generic spare
connector Electric stowable
remote control
door mirrors
Generic
fuseGeneric
fuse
J/BJ/B
((
))

CIRCUIT DIAGRAMS - J/C3-10
J/C (cont’d)
Diagnosis
connector
Full auto
A/C
•ABS
•ACD (vehicle
w/out AYC)
•ACD, AYC•ACD (vehicle
w/out AYC)
•ACD, AYC
•Engine
control
•IgnitionNeedle meter•Engine control
•Needle meter
•Ignition
•Engine control
•Full auto A/C
•Manual A/C
•Cooling
Engine immobiliser system •Engine
immobiliser
system
•Engine control Engine
control
•Engine immobiliser system
•Engine control
•Full auto A/C
•Manual A/C
•Cooling •ACD (vehicle
w/out AYC)
•ACD, AYC
•ABS
•ACD (vehicle
w/out AYC)
•ACD, AYC •ACD (vehicle w/out
AYC)
•ACD, AYC
•ABS
•ACD (vehicle
w/out AYC)
•ACD, AYC •ABS
•ACD (vehicle
w/out AYC)
•ACD, AYC•Security alarm
•Horn Security alarm
Horn
•Ignition key
reminder
buzzer
•Windscreen
washer /
wiper
•Sunroof
•Security alarm
•Central door
locking•Turn signal
lights, hazard
lights
•Tail lights,
position lights,
licence plate
lights, lighting
monitor
warning
buzzer •Electric
stowable
remote control
door mirrors
•Power
windows
•Fog lamps
•Rear washer /
wiper •Cabin lights,
boot
compartment
lights, ignition
key cylinder
illumination
light, door ajar
indicator light

CIRCUIT DIAGRAMS - POWER DISTRIBUTION3-19
Headlight
relay LOHeadlight
relay HITail light
relay
•Engine
immobiliser
system
•Engine
control
•Ignition•Security
alarm
•Horn•Fog lamps
•Spare
connector
for fog
lampsHeadlights Headlights Headlights Headlights
Front ECU
Headlight
levelling
systemTail lights, position
lights, licence
plate lights,
lighting monitor
warning buzzer
•ACD (vehicle
w/out AYC)
•ACD, AYC
•Intercooler water
spray
•Spare audio
connector
•Clock
•Cigarette lighter,
ashtray illumination
lights
•Needle meter
•Turn signal lights,
hazard lights
•Tail lights, position
lights, licence plate
lights, lighting
monitor warning
buzzer •Demister (vehicle
w/out full auto A/C)
•Demister, door
mirror heating
elements (vehicle
with full auto A/C)
•Generic spare
connector
•Heater
•Fog lamps
•Full auto A/C
•Headlight levelling
system
•Manual A/C Note :
*1 : Except discharge type headlights
*2 : Discharge type headlights
(((
)
))

CIRCUIT DIAGRAMS - POWER DISTRIBUTION3-20
Power distribution (continued)
Fusible link
Dedicated
fuse
Intercooler
water spray Ignition
switch
•Engine control
•Starting system
Ignition
•ABS
•ACD (vehicle
w/out AYC)
•ACD, AYC
•SRS airbags,
seatbelt pre-
tensioners
•Ignition key
reminder buzzer
•Intercooler water
spray
•Windscreen
washer / wiper
•Warning lights
•Engine control
•Sunroof
•Needle meters
•Charging
•Security alarm
•Central door
locking•Turn signal lights,
hazard lights
•Tail lights, position
lights, licence plate
lights, lighting
monitor warning
buzzer
•Electric stowable
remote control
door mirrors
•Power windows
•Generic spare
connector
•Fog lamps
•Headlights
•Rear washer /
wiper
•Cabin lights, boot
compartment
lights, ignition key
cylinder
illumination light,
door ajar indicator
light •SRS airbags,
seatbelt pre-
tensioners
•Reversing
lights
•Rear washer /
wiper Engine control