2005 MITSUBISHI LANCER EVOLUTION IX battery

13A-20MPI – TROUBLESHOOTING
Measure at the inter-cooler water
spray relay connector C-220
•Undo the connector, and
measure on the harness side
•Voltage across earth 3 and 1
(ignition switch: ON)
OK:battery voltage
Measure at the engine ECU
connector C-50
•Undo the connector, and
measure on the harness side
•Voltage across earth 56
(ignition switch: ON)
OK:battery voltage
Check connector:C-31
Inspect the harness between the
inter-cooler water spray relay and
the inter-cooler water spray motor
•Check if the power supply wire
is cut, has short circuited, or is
damaged
Inspect the harness between the
inter-cooler water spray motor
and earth
•Check if the earth wire is cut, or
damaged
Check connectors C-209,
C-210, C-201 and C-208
Inspect the harness between the
inter-cooler water spray relay and
the ignition switch
•Check if the power supply wire
is damaged
Check connectors C-22 & C-50
Inspect the harness between the
inter-cooler water spray relay and
the engine ECU
•Check if the signal wire is
damaged
Check connector:A-34
Replace the engine ECU
Check the inter-cooler water
spray motor (Ref Section 15:
Intake/Exhaust)
Check connectorsC-209, C-210, C-201 and C-208
Inspect the harness between the inter-cooler water spray
relay and the ignition switch
•Check if the power supply wire is cut or has short circuited
Continued from the previous page
Check the ignition switch (Ref to Section 54)
Check connectorsC-22 and C-208
Inspect the harness between the inter-cooler water spray
relay and the engine ECU
•Check if the signal wire is cut or has short circuited
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
NGNG
NG
NGNG
NG
NG
NG
NG
NG
NG
NG
NG
NG
Repair
Repair
Repair
Repair
Repair
Repair
Repair
Repair
Repair
Repair
Repair
Repair

13A-21MPI – TROUBLESHOOTING
Check connector: B-32
Replace the No 2. waste gate solenoid
valve
Check connector:B-19X
Measure at the waste gate
solenoid valve connector B-32
•Undo the connector and
measure on the solenoid
valve side
•Resistance between 1-2
OK:29~35Ω(when at 20ºC)
Measure at the waste gate
solenoid valve connector B-32
•Undo the connector and
measure on the harness side
•Ignition switch: ON
•Voltage across earth at 63
OK:battery voltage
Measure at the engine ECU
connector C-50
•Measure the voltage at the
engine ECU terminal
•Ignition switch: ON
•Voltage across earth at 63
OK:battery voltage
Check connector:C-50
Inspect the harness between the
No.2 waste gate solenoid valve
and the engine ECU
•Check if the output wire is
damaged
Inspect the harness between the
No.2 waste gate solenoid valve
and the engine control relay
•Check if the power supply wire
is damaged
Replace the engine ECU
Inspect the harness between the No.2
waste gate solenoid valve and the
engine control relay, and repair if
necessary
•Check if the power supply wire is cut
or has short circuited
Check connector:C-50
Inspect the harness between the No.2
waste gate solenoid valve and the
engine ECU
•Check if the output wire is cut or has
short circuited
Replace the engine ECU
NG
OK
OK
OK
OK
OK
NG
NG
NG
NG
Repair
Repair
OK
OK
NG
NG
OK
Repair
NGRepair
Repair
No.2 waste gate solenoid valve systemProbable causes of the malfunction
The No.2 waste gate solenoid valve controls the supercharge pressure
introduced to the waste gate actuator in the turbocharger.•Malfunction of the No.2 waste gate
solenoid valve.
•Circuit break, short circuit or a faulty
connection in the No.2 waste gate
solenoid valve circuit.
•Malfunction of the engine ECU.
OKNGRepair
OKNGRepair
Inspection procedure 37

MPI – ON-VEHICLE SERVICING13A-30
(3) Remove the air temperature sensor
(4) Use a hair dryer to increase the temperature and measure the
resistance.
Normal conditions:
air temp. sensor
Temperature (ºC)Resistance (kΩ)
Temperature increasesResistance decreases
(5) If the resistance deviates from the standard values, or if it does
not change, replace the air temperature sensor.
(6) Tighten the air temperature sensor to the specified torque.
Tightening torque: 14 ± N·m
4. Inspection of the oil feeder control valve
Checking the operation of the valve
(1) Disconnect the oil feeder control valve connector.
(2) Apply battery voltage across the terminals of the connector on
the oil feeder control valve side, and check that the sound of the
oil feeder control valve operating can be heard.
Caution
There is a chance that the coil may be damaged, so apply
the voltage in as short a time as possible.
Resistance across the terminals
(1) Remove the oil feeder control valve connector.
(2) Measure the resistance across the terminals of the connector on
the oil feeder control valve side.
Standard value: 6.9~7.9 kΩ (when at 20 ºC)
(3) If the resistance deviates from the standard value, replace the oil
feeder control valve.oil feeder control
valve connector
oil feeder control valve

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 - GENERAL LAYOUT DIAGRAM1-3
Front
harness (RH)Control panelInstrument
panel harnessRoof harness
Floor harness (RH)
Battery
harness
Front harness (LH)
Front door
harness *Floor
harness (LH)Fuel harnessRear door harness *
Note :
1. This diagram shows the main wiring harnesses only.
2. The * symbol indicates that the harness is also fitted on the right-hand side.
General Layout Diagram

LAYOUT DIAGRAMS - ENGINE / TRANSMISSION1-6
B-01 (1-black) Engine oil pressure switch
B-02 Alternator
B-03 (4-grey) Alternator
B-04 Starter
B-05 (1-black) Starter
B-06 (4-black) Throttle position sensorB-07 (2-black) Purge control solenoid valve
B-08 (7-black) Airflow sensor
B-12 (5-grey) Windscreen wiper motor
B-13X Engine speed detection connector
B-14X Starter relay
B-17X Ignition coil relay
ENGINE / TRANSMISSION
Connector Symbol
Control harnessGround cable
Battery
harness

1-7
B-19X (4) Engine control relay
B-20X (4) A/C compressor relay
B-21 (10-black) Control panel / battery harness junction
B-25 (4-black) O
2sensor
B-26 (2-black) Injector 4
B-27 (2-black) Injector 3
B-28 (2-black) Injector 2B-29 (2-black) Injector 1
B-30 (2-grey) Waste gate solenoid valve 1
B-31 (8-black) Control harness / transmission harness
junction
B-32 (2-black) Waste gate solenoid valve 1
B-33 (3-black) Intake cam position sensor
B-34 (2-black) Air temperature sensor
LAYOUT DIAGRAMS - ENGINE / TRANSMISSION
Ground cable

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