Mitsubishi Lancer Evolution IX 2005 Service Manual

Service Manual

Electrical Wiring Diagrams

LANCER

Evolution IX

Foreword

This manual is designed to facilitate inspection and
repair work relating to the electrical wiring system in the
’05 Lancer Evolution IX, and contains layout diagrams
which give a three-dimensional representation of the
electrical wires and connectors of the various parts of
the vehicle, as well as circuit diagrams indicating the
wiring design for different systems, and diagrams
showing the points at which each individual component
is installed.
When inspecting or repairing electrical parts, this
manual should be used in conjunction with the related
documents listed on the following pages, if necessary.
This manual contains various different types of wiring
diagrams and circuit diagrams, but it should be
remembered that these may not always coincide with
the exact specifications of each individual vehicle.
This manual is based on the vehicle specifications as
of March 2005.
Please note that future vehicles may not match the
contents of this manual completely, due to changes
in specifications, or the like.
The units shown in this manual are the standard
international SI units. Conventional units are not
included.

March 2005

Mitsubishi Motor Corporation

General ..........................................

Layout Diagrams ..........................

Individual part Installation

Positions .......................................

Circuit Diagrams...........................

Index ..............................................

1

2

3

4

0

This manual is printed on recycled paper.

If you have any opinions, requests or queries
regarding this manual, please write them down on
the “Servicing Comment Form” on the last page,
and fax them to us.

CONTENTS

Related Documentation

Cautionary Note regarding servicing of vehicles fitted with SRS airbags and/or seatbelts
with pre-tensioner systems.

Warnings:

1. Incorrect inspection or servicing of a component part of the SRS airbag system or seatbelt pre-tensioner system,
or a part relating to these systems, may cause accidental operation (deployment) of the SRS airbag or seatbelt
pre-tensioners, or may cause these systems to be disabled, leading in either case the risk of serious injury.

2. If parts may be affected by heat during painting operations, then those parts must be removed in advance. This
applies to the SRS-ECU, airbag modules (driver’s sear and front passenger’s seat), clock springs, front impact
sensors, side impact sensors, and pre-tensioner seatbelts.

• 93ºC or above : SRS-ECU, airbag modules (driver’s sear and front passenger’s seat), clock springs, front

impact sensors, side impact sensors

• 90ºC or above : Pre-tensioner seatbelts

3. The component parts of the SRS airbag system or seatbelt pre-tensioner system, and parts relating to these
systems, must always be inspected and serviced by a Mitsubishi dealer.

4. Service personnel must read the relevant service manuals (particularly, Section 52B – SRS Airbags) carefully and
thoroughly, before inspecting or servicing the component parts of the SRS airbag system or seatbelt pre­tensioner system, and parts relating to these systems.

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

Ta il 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

3-2

Equipment

ABS................................................................3-122

ACD (vehicle without AYC) ............................3-130

ACD, AYC ......................................................3-138

SRS airbags, seatbelt pre-tensioners

(vehicle without front passenger airbag)........3-148

SRS airbags, seatbelt pre-tensioners

(vehicle with front passenger airbag).............3-152

Sunroof ..........................................................3-154

Ignition key reminder buzzer..........................3-157

Intercooler water spray ..................................3-158

Engine immobilizer system ............................3-160

Security alarm ................................................3-162

Spare connector for fog lamp ........................3-167

Generic spare connectors..............................3-168

CIRCUIT DIAGRAMS

3-3

<Notes>

CIRCUIT DIAGRAMS - J/B

3-4

J/B

Power
window
relay

Water
spray
relay

Dummy
connector

Dummy connector

J/B side connector

Note :
The connector numbers correspond to the layout diagrams,
and to the instrument panel and respective circuit diagrams.

Demister
relay

Blower
relay

Fuel
pump
relay 2

Fuel
pump
relay 1

Generic fuse

CIRCUIT DIAGRAMS - J/B

3-5

Note : The triangle symbols in the J/B and relay boxes show the positions that coincide with the triangle marks engraved
on the relays.

Front side

Rear side

To instrument panel

Power window relay

Fuel pump relay 1

Intercooler water
spray relay

Fuel pump relay 2

Dummy connector

Dummy connector

To roof harness

To instrument panel

Blower relay

Demister relay

Generic fuses

To floor harness (RH)

CIRCUIT DIAGRAMS - J/C

3-6

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
connector

Fog 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/C

Cigarette
lighter, ashtray,
illumination
light

Clock

• ACD (vehicle
w/out AYC)

• ACD, AYC

Head-light
levelling system

Turn 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 meters

Generic
fuse

J/B

(

)

Generic
fuse

CIRCUIT DIAGRAMS - J/C

3-7

• 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 /
wiper

Diagnosis
connector

Reversing
lights

Rear washer/
wiper

• Reversing lights

• Rear washer /
wiper

Generic
fuse

(

)

CIRCUIT DIAGRAMS - J/C

3-8

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 system

Fog 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 lights

Needle meters

CIRCUIT DIAGRAMS - J/C

3-9

SRS
airbags,
seatbelt
pre­tensioners

• ABS

•ACD (vehicle
w/out AYC)

• ACD, AYC

•Engine
immobiliser
system

• Engine control

Diagnosis
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
fuse

Generic
fuse

J/B

J/B

(

(

)

)

CIRCUIT DIAGRAMS - J/C

3-10

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

• Ignition

Needle 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 - CENTRAL JUNCTION

3-11

CENTRAL JUNCTION

Fusible Links (relay box inside engine compartment and fuse box connected directly to battery)

Relay box in engine compartment

Fuse box connected directly to battery

Front of vehicle

Front of vehicle

CIRCUIT DIAGRAMS - CENTRALISED JUNCTIONS

3-12

Generic fuses (fuse box inside J/B)

CIRCUIT DIAGRAMS - CENTRAL JUNCTION

3-13

Fuse box inside J/B

CIRCUIT DIAGRAMS - CENTRAL JUNCTION

3-14

Central relays (relay box inside engine compartment)

Note : The triangle symbols engraved in the J/B and relay box indicate the position which coincide with the triangle marks
engraved on the relays.

Relay box inside engine compartment

Front of vehicle

Front of vehicle

CIRCUIT DIAGRAMS - CENTRAL JUNCTION

3-15

Dedicated Fuses (relay box in engine compartment and fuse box installed in J/B)

-

CIRCUIT DIAGRAMS - CENTRAL JUNCTION

3-16

CIRCUIT DIAGRAMS

3-17

Relay box in engine compartment

Front of vehicle

Fuse box installed in J/B

3-18

CIRCUIT DIAGRAMS - POWER DISTRIBUTION

Battery

Fusible
links

Charging

Charging

•ACD (vehicle
w/out AYC)

• ACD, AYC

• Full auto A/C

•Manual A/C

• Cooling

Dedicated
fuses

• Full auto A/C

• Manual A/C

• Cooling

Engine control

•Security alarm

• Central door
locking (keyless
entry)

•Turn signal
lights, hazard
lights

• Full auto
A/C

•Manual
A/C

• Cooling

• ABS

• ACD
(vehicle
w/out AYC)

• ACD, AYC

•Stop lights

•Heater

• Full auto
A/C

• Manual
A/C

POWER DISTRIBUTION

CIRCUIT DIAGRAMS - POWER DISTRIBUTION

3-19

Headlight
relay LO

Headlight
relay HI

Tail light
relay

•Engine
immobiliser
system

•Engine
control

• Ignition

• Security
alarm

•Horn

• Fog lamps

•Spare
connector
for fog
lamps

Headlights Headlights Headlights Headlights

Front ECU

Headlight
levelling
system

Ta il 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 DISTRIBUTION

3-20

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 pre­tensioners

•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 pre­tensioners

• Reversing
lights

•Rear washer /
wiper

Engine control

CIRCUIT DIAGRAMS - POWER DISTRIBUTION

3-21

• ABS

• ACD (vehicle w/out
AYC)

• ACD, AYC

•Intercooler water spray

•Windscreen washer /
wiper

•Turn signal lights,
hazard lights

•Tail lights, position
lights, licence plate
lights, lighting monitor
warning buzzer

•Heater

• Fog lamps

• Full auto A/C

• Headlights

• Headlight levelling
system

• Manual A/C

• Cooling

• ABS

•ACD (vehicle
w/out AYC)

• ACD, AYC

• Sunroof

Windscreen
washer / wiper

Cigarette light,
ashtray
illumination lights

Electric stowable
remote control
door mirrors

•Rear washer /
wiper

•Cabin lights,
boot
compartment
lights, ignition
key cylinder
illumination
light, door ajar
indicator light

• Spare audio
connector

•Clock

• Generic
spare
connector

•Cabin lights,
boot
compartment
lights, ignition
key cylinder
illumination
light, door
ajar indicator
light

CIRCUIT DIAGRAMS - POWER DISTRIBUTION

3-22

Power distribution (continued)

Fusible
link

Fusible
link

Dedicated
fuse

Sunroof

• Sunroof

• Power
windows

*Heater
* Full auto A/C
*Manual A/C

• ACD (vehicle w/out
AYC)

• ACD, AYC

• Ignition key reminder
buzzer

•Windscreen washer /
wiper

•Warning lights

• Engine control

• Spare audio connector

•Clock

• Sunroof

• Needle meter

•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

• Full auto A/C

• Headlights

• Headlight levelling
system

•Rear washer / wiper

•Cabin lights, boot
compartment lights,
ignition key cylinder
illumination light, door
ajar indicator light

• ABS

• ACD (vehicle w/out
AYC)

• ACD, AYC

• SRS airbags, seatbelt
pre-tensioners

• Ignition key reminder
buzzer

•Windscreen washer /
wiper

• Engine immobiliser
system

• Engine control

• 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

• Full auto A/C

• Headlights

• Rear washer / wiper

•Cabin lights, boot
compartment lights,
ignition key cylinder
illumination light, door
ajar indicator light

(

)

Generic
fuse

J/B

Demister
relay

Demister, door mirror
heating elements
(vehicle with full auto A/C)

•Demister (vehicle
w/out full auto A/C)

• Demister, door
mirror heating
elements (vehicle
with full auto A/C)

•Demister (vehicle
w/out full auto A/C)

• Demister, door mirror
heating elements
(vehicle with full auto
A/C)

CIRCUIT DIAGRAMS - STARTING

3-23

STARTING

Battery

Ignition switch

Engine
control

Starter
relay

Clutch
switch

Starter

CIRCUIT DIAGRAMS - IGNITION

3-24

IGNITION

Battery

Ignition switch (IG1)

Dedicated
fuse

Ignition
coil relay

• Engine immobiliser
system

• Engine control

CIRCUIT DIAGRAMS - IGNITION

3-25

Ignition coil relay

Ignition
coil 1

Ignition
coil 2

Input signals

• Crank angle sensor

•Vehicle speed
sensor

• Coolant temp.
sensor

• Air pressure sensor

• Knock sensor

• Ignition
switch (ST)

• Cam position
sensor

• Intake temp.
sensor

Spark plugs

Engine ECU

Engine speed
detection
connector

CIRCUIT DIAGRAMS - CHARGING

3-26

CHARGING

Fusible
link

Engine ECU

Battery

Dedicated
fuse

Combination
meter

Ignition switch (IG1)

Brake
warning light

•Windscreen washer /
wiper

• Engine control

• Needle meters

•Turn signal lights, hazard
lights

•Tail lights, position lights,
licence plate lights, lighting
monitor warning buzzer

•Electric stowable remote
control door mirrors

•Generic spare connector

• Fog lights

• Headlights

•Rear washer / wiper

•Cabin lights, boot
compartment lights,
ignition key cylinder
illumination light, door ajar
indicator light

Note:

*

Alternator

Field coil
Starter
coil

IC voltage regulator

CIRCUIT DIAGRAMS

3-27

<Notes>