2005 MITSUBISHI LANCER EVOLUTION IX coolant

174G6 – WATER PUMP / WATER HOSE
Water Pump / Water Hose
Removal and Installation
Removal Sequence
1. Water hose
2. Water hose
3. Water hose
4. Water hose
5. Coolant temperature sensor
6. Coolant temperature gauge unit
7. Water outlet fitting
8. Thermostat9. Thermostat housing
10. Gasket
11.Water inlet pipe
12. O-ring
13. O-ring
14. Water pump
15. Water pump gasket
16. Knock sensor

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GENERAL INFORMATION - HOW TO READ THE WIRING DIAGRAMS0-4
Reading Circuit Diagrams
These diagrams show the circuits for each system, from the fuse or fusible link to the earth. In principle, the power supply is
shown at the top and the earth at the bottom, to make it easier to understand the flow of current in the circuit.
The circuit diagrams show a state where none of the switches, etc. are operating.
Indicates power take-out
point.Indicates connector No. The same number is used in the layout
diagrams. Connector numbers shown inside a rounded box indicate
connector symbols that are listed together at the bottom of the page.
Connector numbers that are not shown inside a rounded box indicate
components that are incorporated into the harness.
Indicates that the terminal is
connected via a plate inside
the relay box.
Each circuit diagram is divided into
blocks shown on separate pages.
This number indicates the block.
Indicates the harness branch
point. This number matches the
branch numbers in the other
circuit diagrams.
Indicates the number of the circuit
to which the branch connects.
Indicates the power supply
within the control unit. If no
voltage is indicated, then it is
the battery voltage.
An "X" at the end of a connector
number shows that it is part of the
centralized relay. For more
information, refer to the section
covering the Centralized Junction.
Indicates that circuit diagram
continues at [A] in Block [2].
Indicates the connector symbol,
listed in the order of the connector
numbers in the circuit diagram.
Indicates the operating
conditions of the coolant
temperature switch, etc.Indicates shield
wire.An upward arrow indicates that
the current flows from bottom to
top in the diagram.
RegisterRelayMotor Relay boxFusible link
Fusible link
Diode
Sensor Switch
headlightsignition

LAYOUT DIAGRAMS - ENGINE / TRANSMISSION1-8
B-106 (2-grey) Knock sensor
B-108 (2-black) Coolant temperature sensor
B-109 (34-black) ABS-ECU
B-114 (1-black) Water temperature gauge unit
B-115 (3-black) Exhaust cam position sensorB-119 (3-grey) Ignition coil 2
B-122 (3-black) Crank angle sensor
B-123 (3-grey) Ignition coil 1
B-124 (2-black) Fuel pressure solenoid valve
Engine / Transmission (continued)
Connector Symbol
Control harness
Battery harness

INDIVIDUAL PART INSTALLATION POSITIONS - ECU2-4
O
2sensor
connector
Ext. air temp. sensor
Coolant
temperature sensor
Intake cam
position sensor
Exhaust cam
position sensor
(Vehicle not fitted with front passenger airbag)
O2 sensor
Front impact sensor
Steer sensor
Sunlight sensor
Heater water temperature sensor
Air thermo
sensor
Blower
ASSY
Cabin
temperature sensor

CIRCUIT DIAGRAMS - IGNITION3-25
Ignition coil relay
Ignition
coil 1Ignition
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 - 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

3-94CIRCUIT DIAGRAMS - TEMPERATURE CONTROL
Manual Air-Conditioning (cont’d)
Battery Radiator fan controller
Dedicated
fuse
A/C
compressor
relayDual
pressure
switchLow pressure
ON
OFF : 196 kPa
OFF
ON : 221 kPa
High pressure
ON
OFF: 3138 kPa
OFF
ON : 2550 kPa
Engine ECU
Magnetic
clutch Coolant
temperature
switch A/C compressor
J/C (2)Generic fuse ()

3-102CIRCUIT DIAGRAMS - TEMPERATURE CONTROL
Fully automatic air-conditioning (cont’d)
Battery
Dedicated
fuse
A/C
compressor
relay
A/C compressor
Coolant
temperature
switch
ON
OFF
: 150 ºC
OFF
ON
: 120 ºC
Magnetic
clutchJ/B
Generic
fuse (
)Radiator fan
controller
Dual
pressure
switchLow pressure
ON
OFF
: 196 kPa
OFF
ON
: 221 kPa
High pressure
ON
OFF
: 3138 kPa
OFF
ON
: 2550 kPa
Engine ECU