Changes MITSUBISHI LANCER EVOLUTION 2007 Service Owner's Manual

MPI -Throttle Body13A-145
3. After installing the Throttle position sensor, check that
the output voltage is at the standard value. If deviated
from the standard value, loosen the screw, readjust to
the standard position, and then fix. Repeat this step until
the output voltage is at the standard value.
4. Connect a circuit tester across terminal No. 1 (Throttle
position sensor power) and terminal No. 2 (Throttle
position sensor output). Check that the resistance
changes smoothly when the throttle valve is slowly moved
to the fully opened position.Throttle position
sensor output
Throttle position
sensor powerEarth
Open

ENGINE AND EMISSION CONTROL -Emission Control System17-11
PURGE CONTROL SYSTEM CHECK
1. Disconnect the vacuum hose (red stripe) from throttle
body and connect it to a hand vacuum pump.
2. Plug the nipple from which the vacuum hose was removed.
3. When the engine is cold or hot, apply a vacuum of 53
kPa, and check the condition of the vacuum.
When engine is cold
(Engine coolant temperature: 40_C or less)
Engine conditionNormal condition
At idleVacuum is maintained
3,000 r/min
When engine is hot
(Engine coolant temperature: 80_C or higher)
Engine conditionNormal condition
At idleVacuum is maintained
3,000 r/min (within 3
minutes after engine starts)Vacuum will leak.
PURGE PORT VACUUM CHECK
1. Disconnect the vacuum hose (red stripe) from the throttle
body purge vacuum nipple and connect a hand vacuum
pump to the nipple.
2. Confirm that the vacuum is approximately constant
regardless of the engine rotation speed.
NOTE
If vacuum changes, it is possible that the throttle body
purge port maybe clogged and require cleaning.
Red stripe
Plug
Throttle body
Red stripe
Throttle body
Vac-
uum
Engine speed (r/min)

22A-2
MANUAL
TRANSMISSION
CONTENTS
GENERAL 3.................................
Outline of Changes 3...........................
GENERAL INFORMATION 3..................
SERVICE SPECIFICATION 3..................
LUBRICANTS 3..............................
SPECIAL TOOLS 4...........................
TROUBLESHOOTING 5...............
ON-VEHICLE SERVICE 40....................
Transmission Oil Check 40......................
Transmission Oil Replacement 40................
Transfer Oil Check 40..........................
Transfer Oil Replacement 40....................
Fluid Check ACD and AYC> 41.............................
Bleeding ACD and AYC> 42.............................ACD Operation Check vehicles with ACD and AYC> 42................
Hydraulic Pressure Check vehicles with ACD and AYC> 43................
Wheel Speed Sensor Output Voltage
Measurement ACD and AYC> 44.............................
TRANSMISSION CONTROL* 46...............
TRANSFER ASSEMBLY 49...................
TRANSMISSION ASSEMBLY 52...............
4WD-ECU VEHICLES WITH ACD AND AYC> 55.........
SENSOR, SWITCH AND RELAY WITH ACD OR VEHICLES WITH ACD AND
AYC> 56.....................................
HYDRAULIC UNIT Refer to GROUP27B.......
WARNING REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES
WARNING!
(1) Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to personal
injury or death to service personnel (from inadvertent firing of the air bag) or to driver and passenger (from rendering
the SRS inoperative).
(2) Service or maintenance of any SRS component or SRS-related component must be performed only at an authorized
MITSUBISHI dealer.
(3) MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B - Supplemental
Restraint System (SRS) before beginning any service or maintenance of any component of the SRS or any SRS-related
component.
NOTE
The SRS includes the following components: SRS-ECU, SRS warning lamp, air bag module, clock spring, and interconnecting
wiring. Other SRS-related components (that may have to be removed/installed in connection with SRS service or maintenance) are
indicated in the table of contents by an asterisk (*).

MANUAL TRANSMISSION - Troubleshooting 22A-9
Code No.21 Wheel speed sensor system
Code No.22 Wheel speed sensor system
Code No.23 Wheel speed sensor system
Code No.24 Wheel speed sensor systemProbable cause
A diagnosis code corresponding to the open circuit or short circuit of the wheel
speed sensor is output when one wheel speed sensor has detected a vehicle
speed of above 15 km/h, but any one of the remaining three wheel speed
sensors could not detect the vehicle speed.DWheel speed sensor fault
DRotor fault
DWheel bearing fault
DHarness or connector fault
DABS-ECU fault
D4WD-ECU fault

OKNGYES
NO
OK
Measure at 4WD-ECU connector C-44.
DMeasure the ECU terminal voltage.
DIgnition switch: ON
DRotate the tire corresponding to the measured terminal by
one and a half to one rotate per second.
(1) Voltage between terminal 9 and body earth
(2) Voltage between terminal 6 and body earth
(3) Voltage between terminal 7 and body earth
(4) Voltage between terminal 8 and body earth
OK:Changes at 0 V↔5VCheck the following connector:C-44
NG→Repair
Check the following connectors:
C-44, B-123
C-44, C-147, B-123
NG→Repair
MUT-IIDiagnosis Code
DAre the ABS Diagnosis Code Numbers.11, 12, 13, 14, 21,
22, 23, and 24 output?Refer to GROUP 35B - Troubleshooting.
NG
MUT-IIData List
DNo.01 Vehicle speed sensor
DNo.02 Vehicle speed sensor
DNo.03 Vehicle speed sensor
DNo.04 Vehicle speed sensor
OK:The speed meter display and MUT-IIdisplay match.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions.)
OK
Check the harness between 4WD-ECU and ABS-ECU.
DCheck for open circuit, ground, and short-circuit of the
output line.
NG→Repair
MUT-IIData List
DNo.01 Vehicle speed sensor
DNo.02 Vehicle speed sensor
DNo.03 Vehicle speed sensor
DNo.04 Vehicle speed sensor
OK:The speed meter display and MUT-IIdisplay match.
NG→Replace the 4WD-ECU
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions.)

MANUAL TRANSMISSION - Troubleshooting 22A-11
Code No.25 Wrong-diameter tireProbable cause
Code No.25 is output as wrong-diameter tire when one of the four vehicle
speeds is outside the range of specified values in respect to the average of the
four vehicle speed sensors, when the vehicle speed is above 20 km/h with the
steering wheel in the straight ahead position.
However the warning lamp does not light up.DTire fault
DWheel speed sensor fault
DRotor fault
DWheel bearing fault
DHarness or connector fault
DABS-ECU fault
D4WD-ECU fault

OK NG
OK
Check the following connector:C-44
NG→Repair
Check the following connectors:
C-44, B-123
C-44, C-147, B-123
NG→Repair OKYES
OK
OK
Check the wheel speed sensor and rotor.
(Refer to GROUP 35B - Wheel Speed Sensor.)
NG→Repair
Check the wheel speed sensor output voltage. (Refer to
GROUP 35B - On-vehicle Service.)OK
Check the wheel speed sensor installation.
NG→Repair
NG
OK
Check the wheel beearing. (Refer to GROUP 26 - On-vehicle
Service, and GROUP 27B - Rear Hub Assembly.)
NG→Repair
OK
Check the following connectors:
B-123, A-03, A-37, D-10, D-04, D-30,
C-146, C-111, C-128, A-43
B-123, A-03, A-37, D-10, D-04, D-30,
C-146, C-111, C-128, C-136
NG→Repair NG
MUT-IIData List
DNo.01 Vehicle speed sensor
DNo.02 Vehicle speed sensor
DNo.03 Vehicle speed sensor
DNo.04 Vehicle speed sensor
OK:The speed meter display and MUT-IIdisplay match.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions.)
Measure at 4WD-ECU connector C-44.
DMeasure the ECU terminal voltage.
DIgnition switch: ON
DRotate the tire corresponding to the measured terminal by
one and a half to one rotate per second.
(1) Voltage between terminal 9 and body earth
(2) Voltage between terminal 6 and body earth
(3) Voltage between terminal 7 and body earth
(4) Voltage between terminal 8 and body earth
OK:Changes by 0 V↔5V.
MUT-IIData List
DNo.01 Vehicle speed sensor
DNo.02 Vehicle speed sensor
DNo.03 Vehicle speed sensor
DNo.04 Vehicle speed sensor
OK:The speed meter display and MUT-IIdisplay match.
NG→Replace the 4WD-ECU.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
Refer to GROUP 35B - Troubleshooting. (Refer to Diagnosis
Code No.11, 12, 13, 14, 21, 22, 23, and 24.)
Are all four wheels mounted to normal tires?
NO→Repair
Check the harness between the ABS-ECU and each wheel
speed sensor.
DCheck for open circuit and ground of the output line.
DCheck for open circuit and damage of the earth line.
NG→Repair
OK
Check the harness between the 4WD-ECU and
ABS-ECU.
DCheck for open circuit, ground and damage of
the power line.
NG→RepairOK

MANUAL TRANSMISSION - Troubleshooting 22A-13
Code No.26 Wheel speed sensor system (faulty output
signal)Probable cause
Code No.26 is output as output signal error of the wheel speed sensor when
one wheel speed is outside the specified range at the vehicle speed of above
20 km/h.
However, warning lamp will light up.DTire fault
DWheel speed sensor fault
DRotor fault
DWheel bearing fault
DHarness or connector fault
DABS-ECU fault
D4WD-ECU fault

OK NG
OK
Check the following connector:C-44
NG→Repair
Check the following connectors:
C-44, B-123
C-44, C-147, B-123
NG→Repair OK
Check the harness between the 4WD-ECU and ABS-ECU.
DCheck for open circuit, ground and damage of the power
line.
NG→RepairYES
OK OK
Check the wheel speed sensor and rotor.
(Refer to GROUP 35B - Wheel Speed Sensor.)
NG→RepairCheck the wheel speed sensor output voltage. (Refer to
GROUP 35B - On-vehicle Service.)OK
Check the installation of the wheel speed sensor.
NG→Repair
NG
OK
Check the wheel beearing.
(Refer to GROUP 26 - On-vehicle Service, and GROUP 27B
- Rear Hub Assembly.)
NG→Repair
OK
Check the following connectors:
B-123, A-03, A-37, D-10, D-04, D-30,
C-146, C-111, C-128, A-43
B-123, A-03, A-37, D-10, D-04, D-30,
C-146, C-111, C-128, C-136
NG→Repair NG
MUT-IIData List
DNo.01 Vehicle speed sensor
DNo.02 Vehicle speed sensor
DNo.03 Vehicle speed sensor
DNo.04 Vehicle speed sensor
OK:The speed meter display and MUT-IIdisplay match.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
Measure at 4WD-ECU connector C44.
DMeasure the ECU terminal voltage.
DIgnition switch: ON
DRotate the tire corresponding to the measured terminal by
one and a half to one rotate per second.
(1) Voltage between terminal 9 and the body earth
(2) Voltage between terminal 6 and body earth
(3) Voltage between terminal 7 and body earth
(4) Voltage between terminal 8 and body earth
OK:Changes at 0 V↔5V.
MUT-IIData List
DNo.01 Vehicle speed sensor
DNo.02 Vehicle speed sensor
DNo.03 Vehicle speed sensor
DNo.04 Vehicle speed sensor
OK:The speed meter display and MUT-IIdisplay match.
NG→Replace the 4WD-ECU.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)Check the harness between the ABS-ECU and each wheel
speed sensor.
DCheck for open circuit, ground, and short circuit of the
output line.
DCheck for open circuit and damage of the earth line.
NG→Repair YES
NO
Refer to GROUP 35B - Troubleshooting.
Are the four wheels mounted to normal tires.
NO→RepairMUT-IIDiagnosis Code
DAre the ABS Diagnosis Code Nos.11, 12, 13, 14, 21, 22,
23, 24 output?

MANUAL TRANSMISSION - Troubleshooting 22A-15
Code No.31 Steering wheel sensor
systemProbable cause
Code No.31 is output when open circuit or short circuit of the steering wheel
sensor output line (ST-1, ST-2, or ST-N) occurs.DSteering wheel sensor fault
DHarness or connector fault
D4WD-ECU fault
OK NG NO
OK
MUT-IIData List
DNo.21 Steering wheel sensor
voltage
DNo.22 Steering wheel sensor
voltage
DNo.23 Steering wheel sensor
voltage
OK:Refer to P.22A-35 (Data
List Reference Table).
OK→Intermittent malfunction (Refer
to GROUP 00 - Points to Note for
Intermittent Malfunctions)
Check the following connector:C-43
NG→Repair YES
MUT-IIDiagnosis Code
DAre the ABS Diagnosis Code
Nos.81, 82, 83 output?
MUT-IIData List
DNo.21 Steering wheel sensor voltage
DNo.22 Steering wheel sensor voltage
DNo.23 Steering wheel sensor voltage
OK:Refer to P.22A-35 (Data List Reference Table).
NG→Replace the 4WD-ECU.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
NG (No change from 0 V or
from above 4.5 V)
Measure at 4WD-ECU connector C-43.
DMeasure the ECU terminal voltage.
DIgnition switch: ON
(1) Voltage between terminal 33 and earth (Steering wheel
sensor )
(2) Voltage between terminal34and earth (Steering wheel
sensor )
(3) Voltage between terminal44 andearth (Steering wheel
sensor )
OK:When the steering wheel is turned, changes at
approx. 1.5 V – 3.5 V.
(1) NG
NG (Changes at 1 V
- 4.5 V or more)
OK
Check the harness between the steering wheel sensor and
ignition switch.
DCheck for open circuit, ground and damage of the power
line.
NG→Repair
Check the following connectors:C-230, C-102, C-209,
C-210
NG→Repair
OKOK
Check the following connectors:
C-230, C-128, C-43
C-230, C-43
NG→Repair
OK
Check the harness between 4WD-ECU and steering
wheel sensor.
DCheck for open circuit, short circuit, and damage of
the output line.
NG→Repair
Replace the steering wheel sensor.
Replace the Steering wheel sensor.
OK
OK
Check the following connector:
C-230
NG→RepairNG
Measure at Steering wheel sensor
connector C-230.
DDisconnect the connector and
measure at the harness side.
DIgnition switch: ON
DVoltage between terminal 2 and
earth
OK:System voltage
DResistance between terminal 3
and body earth
OK:2Ωor less
OK
Check the following connectors:
C-230, C-102, C-209, C-210
NG→Repair
Check the harness between the
ignition switch and steering wheel
sensor.
DCheck for open circuit and
damage on power line.
NG→Repair
(2) NG
OK
Check the harness between the steering wheel sensor and
body earth.
DCheck for open circuit and damage of the earth line.
NG→Repair
Check the following connector:C-230, C-08
NG→Repair
Measure at steering wheel sensor connector C-230.
DDisconnect the connector and measure at the
harness side.
DIgnition switch: ON
(1) Voltage between terminal 2 and earth
OK:System voltage
(2) Resistance between terminal 3 and body earth
OK:2Ωor less

MANUAL TRANSMISSION - Troubleshooting 22A-16
Code No.32, 33 Steering wheel sensor systemProbable cause
Code No.32 is output when the steering wheel sensor ST-N has been detected
at the neutral position in a state where the steering wheel has been determined
to have changed above 40_C from steering wheel sensor ST-1 and ST-2.
Code No.33 is output when the steering wheel sensor ST-N has been detected
at the neutral position in a state where the steering wheel has been determined
to have changed above 400_C from steering wheel sensor ST-1 and ST-2.DHarness or connector fault
DSteering wheel sensor fault
D4WD-ECU fault
NG
OK
MUT-IIData List
DNo.52 Steering wheel sensor
(1) Steering wheel: Neutral
OK:ON
(2) Steering wheel: Turn from neutral position
OK:OFF
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
Check the following connector:C-43
NG→Repair
NG
Check the following connectors:
C-230, C-128, C-43
C-230, C-43
NG→Repair
OK
Replace the steering wheel sensor.OK
Measure at 4WD-ECU connector C-43.
DMeasure the ECU terminal voltage.
DIgnition switch: ON
DVoltage between terminal 44 and earth (Steering wheel
sensor )
OK:When the steering wheel is turned, changes to
approx. 1.5 V or 3.5 V.
MUT-IIData List
DNo.52 Steering wheel sensor
(1) Steering wheel: Neutral
OK:ON
(2) Steering wheel: Turn from the neutral position
OK:OFF
NG→Replace 4WD-ECU.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
OK
Check the harness between the 4WD-ECU and steering wheel
sensor.
DCheck for damage of the output line.
Check the damage between the steering wheel sensor and
body earth.
DCheck for open circuit and damage of the earth line.
NG→Repair

MANUAL TRANSMISSION - Troubleshooting 22A-17
Code No.34 Steering wheel sensor systemProbable cause
Code No.34 is output when no change in the steering wheel sensor signal at a
vehicle speed of above 15 km/h is detected for a total of more than 15 minutes
, and turning is detected during this time.DHarness or connector fault
DSteering wheel sensor fault
D4WD-ECU fault
NG
OK
MUT-IIData List
DNo.53 Steering wheel sensor
OK:When the steering wheel is rotated to the left, ON
and OFF are repeated.
DNo.54 Steering wheel sensor
OK:When the steering wheel is rotated to the right, ON
and OFF are repeated.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
Check the following connector:C-43
NG→Repair
NG
Check the following connectors:
C-230, C-128, C-43
C-230, C-43
NG→Repair
OK
Replace the steering wheel sensor.OK
OK
Check the harness between the 4WD-ECU and steering wheel
sensor.
DCheck for damage of the output line.
Check the harness between the steering wheel sensor and
body earth.
DCheck for open circuit and damage of the earth line.
NG→Repair
Measure at 4WD-ECU connector C-43.
DMeasure the ECU terminal voltage.
DIgnition switch: ON
(1) Voltage between terminal 33 and earth (Steering wheel
sensor )
(2) Voltage between terminal 34 and earth (Steering wheel
sensor )
OK:When the steering wheel is turned, changes at
approx. 1.5 V or 3.5 V
MUT-IIData List
DNo.53 Steering wheel sensor
OK:When the steering wheel is rotated to the left, ON
and OFF are repeated
DNo.54 Steering wheel sensor
OK:When the steering wheel is rotated to the right ON
and OFF are repeated.
NG→Replace the 4WD-ECU.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions.)

MANUAL TRANSMISSION - Troubleshooting 22A-35
DATA LIST REFERENCE TABLE
Item
no.Check itemCheck conditionNormal conditions
01Wheel speed sensor
Execute actual driving.The speed meter dis-
play and MUT-IIdis-
lth02Wheel speed sensor

py
play match.
03Wheel speed sensor

04Wheel speed sensor

05Wheel speed sensor
(0.2 km/h)
06Wheel speed sensor
(0.2 km/h)
07Wheel speed sensor
(0.2 km/h)
08Wheel speed sensor
(0.2 km/h)
09Vehicle speed
10Battery voltageIgnition switch: ONSystem voltage
11Proportional valve cur-
rent During ACD operation50 - 1,000 mA
12Proportional valve cur-
rent During AYC operation50 - 1,000 mA
13TPS voltageIgnition switch: ON
Engine: StoppedAccelerator pedal: Full
closed535 - 735 mV
Engine:Stopped
Accelerator pedal: PressGradually rises from
the above value
Accelerator pedal: Full
throttle4,500 - 5,000 mV
14Longitudinal G sensor
voltageIgnition switch: ONVehicle stopped (horizon-
tal) state2.4 - 2.6 V
g
Actual drivingThe displayed value
increases and de-
creases mainly around
2.5 V.
15Lateral G sensor volt-
ageIgnition switch: ONVehicle stopped (horizon-
tal) state2.4 - 2.6 V
g
Perform actual drivingThe displayed value
increases and de-
creases mainly around
2.5 V.
16Steering operation
angleIgnition switch: ONSteering wheel: Steer by 90
degrees to the rightR90 deg
g
Steering wheel: Steer by 90
degrees to the leftL90 deg
17Steering angle velocityIgnition switch: ONSteering wheel: No steering0 deg/sggyg
Steering wheel: SteerThe display changes
according to the revolu-
tion speed.
18Pressure sensorDuring electric pump motor operations1.0 - 1.6 MPa