check transmission fluid MITSUBISHI LANCER EVOLUTION 2007 Service Repair Manual

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-30
Code No.82 Electric pump relay systemProbable cause
Code No.82 is output when the pressure sensor does not reach the specified
value even if the 4WD-ECU has output the electric pump motor drive command.DInsufficient fluid
DPressure sensor fault
DElectric pump relay fault
DHydraulic unit fault
DHarness or connector fault
D4WD-ECU fault
OK
OK
NG
NG
MUT-IIActuator Test
DNo.12 Electric pump drive
OK:Operating sounds of the electric pump can be heard.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
Check the following connectors:
B-139, C-42, C-45, F-23
B-139, F-23
NG→Repair
OK
Check the following connector:B-139
NG→Repair
Check the harness between the fusible link No.7 and electric
pump relay.
DCheck for open, ground and damage of the power line.
NG→Repair
Measure at electric pump relay connector B-139.
DDisconnect the connector and measure at the harness
side.
DVoltage between terminal 5 and earth
OK:System voltage
MUT-IIActuator Test
DNo.12 Electric pump drive
OK:Operating sounds of the electric pump can be heard.
NG→Replace the 4WD-ECU.
OK→Intermittent malfunction (Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions)
YES
NOIs the fluid amount in the reservoir tank appropriate?
YES
Is the fluid leaking?
NO→Replenish the fluid.
Repair the leaking location.
YES
NO
MUT-IIDiagnosis Code
DAre Diagnosis Code Nos.45, 46, or 47 output?Check code Nos. 45, 46, and 47 pressure sensor system.
(Refer to P.22A-19, 20.)
YESCode No.81 Check the electric pump relay system (Refer to
P.22A-29.)
NO
MUT-IIDiagnosis Code
DIs the Diagnosis Code No.81 output?
OK
Check the harness between the electric pump relay and body
earth.
DCheck for open circuit and damage on earth line
NG→Repair
Replace the hydraulic unit.

MANUAL TRANSMISSION - Troubleshooting 22A-34
Inspection procedure 4
More than two ACD mode indicator lamps remain lit even
after the engine starts
Probable cause
The output circuit of the ACD mode indicator lamp may be faulty.DHarness or connector fault
D4WD-ECU fault
DACD mode indicator lamp assembly fault
NOTE
This phenomenon occurs only when communication with the MUT-IIis possible (4WD-ECU power supply
fault) and at the same time, no diagnostic code (no trouble code) is output.
NO
Replace the 4WD-ECU.
Do all the ACD mode indicator lamps go off when 4WD-ECU
connector C-43 is disconnected?
YES
Replace the ACD mode indicator lamp assembly.OK
NG
Check the trouble symptoms.
Check the following connectors:
C-43, C-128, C-01
C-43, C-01
NG→Repair
OK
Check the harness between the ACD mode indicator lamp
assembly and 4WD-ECU.
DCheck for ground and short circuit of output line.
NG→Repair
Inspection procedure 5
ACD does not operate (No diagnosis code)
Probable cause
Insufficient operating oil, oil leakage, faulty operations of the oil pressure unit, and
faulty operations of the ACD transfer may be suspected.DLeakage of transfer oil
DInsufficient transfer oil
DLeakage of oil pressure line
DInsufficient fluid
DHydraulic unit fault
DACD transfer fault
NOTE:
1. This malfunction is restricted to only when no diagnostic code (no trouble code) is output.
2. *: Refer to GROUP 22B.
OK
NG OKNG OKNG
NG
NO
NG
OK
Replenish transfer oil.
Replace the oil pressure unit.
Have foreign particles mixed into the oil pressure line?
YES→Repair
Check the hydraulic pressure (P.22A-43).Perform bleeding (P.22A-42).
Check the fluid (P.22A-41).Check for leakage of the oil pressure line.
NG→Repair
Check the transfer oil (P.22A-40).Check for leakage of the transfer oil.
NG→Repair
Check the trouble symptoms.
Replace the ACD transfer.*OK
Replenish the fluid.
OK
NG
Check the operations of the ACD (P.22A-42).Check the trouble symptoms.

MANUAL TRANSMISSION - On-vehicle Service22A-41
4. Fill with specified oil till the level comes to the lower portion
of oil filler plug hole.
Specified transfer oil:
MITSUBISHI Genuine Gear Oil Part No.8149630
EX, CASTROL HYPOY LS (GL-5, SAE 90),
SHELL-LSD (GL-5, SAE 80W - 90) or equivalent
Quantity:
0.55 L ACD and AYC>
0.6 L and AYC>
5. Tighten the oil filler plug to the specified torque.
Tightening torque: 32±2 N·m
FLUID CHECK VEHICLES WITH ACD AND AYC>
1. Remove the maintenance lid located in the luggage
compartment.
2.
If the vehicle has been run, leave it for 90 min. or more
in an ordinary temperature (10_C–30_C) to allow the
accumulator internal pressure to drop.
NOTE
If the ambient temperature is 10_C or less, allow more
time to leave the vehicle to stand idle.

Set the MUT-IIto the 16-pin diagnosis connector. Turn ON
the ignition switch, perform MUT-IIactuator test (Item
No.03), forcibly drive the hydraulic unit and remove the
pressure in the accumulator.
Caution
Turn the ignition switch to the “LOCK”(OFF) position
before connecting or disconnecting the MUT-II.
NOTE
(1) In the actuator test (Item No. 03: Oil Level Check
Mode), the directional valve of the hydraulic unit is
moved to the left and right for 20 times, and then
the differential is cleared automatically. Drive can also
be cleared forcibly using the Clear key of the MUT-II.
(2) If the function has been stopped by fail-safe, the
hydraulic unit cannot be cleared forcibly.
3. Check that the fluid level in the oil reservoir is in the
range between MAX and MIN.
4. If the fluid level is lower than MIN, add the specified
fluid.
Specified fluid: Dia Queen ATF SP III
5. Reinstall the maintenance lid.

MANUAL TRANSMISSION - On-vehicle Service22A-42
BLEEDING VEHICLES WITH ACD AND AYC>
1. Lift up the vehicle.
2. Set the MUT-IIto the 16-pin diagnosis connector.
Caution
Turn the ignition switch to the “LOCK”(OFF) position
before connecting or disconnecting the MUT-II.
3. Turn the ignition switch to the “ON” position.
4. Set the steering wheel in the straight-ahead position.
5. Perform the MUT-IIactuator test (Item No.02), and forcibly
drive the hydraulic unit.
NOTE
(1) The actuator test (Item No.01: Bleeding Mode) will
be performed for 5 minutes, after which it will be
cleared automatically. Drive can also be cleared during
forced driving using the clear key of the MUT-II.
(2) If the hydraulic unit function has been stopped by
fail-safe, the hydraulic unit cannot be forcibly driven.
6. Remove the cap of the bleeder screw on the transfer,
and connect the vinyl hose.
7
.Slowly turn the steering wheel to the left or right from
the neutral state. Loosen the bleeder screw, and check
that air is discharged together with the fluid.
8
.After the air is discharged, tighten the bleeder screw,
and return the steering wheel to the neutral state.
Caution
During bleeding, replenish the fluid so that some
always remains in the oil reservoir.
9. Repeat steps 6 and 7 several 2 to 3 times, and after
checking that no more air mixes in, tighten the bleeder
screw at the specified torque.
Tightening torque: 5±1 N·m
10. After bleeding, check the fluid level. (Refer to P. 22A-41.)
Caution
If bleeding is not performed completely, noise may
be produced from the hydraulic unit, or the durability
of the pump, etc. may drop.
11. On vehicles with AYC, perform bleeding when the
hydraulic unit is removed. (Refer to GROUP 27B -
On-vehicle Service.)
ACD OPERATION CHECK ACD OR VEHICLES WITH ACD AND AYC>
1. Lift up the vehicle.
2
.Set the MUT-IIto the 16-pin diagnosis connector.
Caution
Turn the ignition switch to the “LOCK”(OFF) position
before connecting or disconnecting the MUT-II.
3. Start the engine.
Bleeder screw
Front exhaust pipe

MANUAL TRANSMISSION - On-vehicle Service22A-44
(2) If the hydraulic unit function has been stopped by
fail-safe, the hydraulic unit cannot be forcibly driven.
6. Check that the generated oil pressure of the hydraulic
unit satisfies the standard value.
Standard value: 1.0 – 1.6 MPa
Caution
While the oil pressure is checked, add fluid as
necessary to ensure that it is left in the oil reservoir
during the entire procedure.
7. If the measured value exceeds the standard value, replace
the hydraulic unit.
8. Connect the hydraulic unit and transfer connector
assembly, and tighten the flare nut at the specified torque.
Tightening torque: 34±5 N·m (when screw is dry)
26±4 N·m (when screw is applied with oil)
9. Supply the specified fluid up to the MAX level of the
oil reservoir, and bleed the oil pressure pipes.
Specified fluid: DIA QUEEN ATF SP III
Quantity:
0.9 dm
3
1.0 dm3
WHEEL SPEED SENSOR OUTPUT VOLTAGE
MEASUREMENT (VEHICLES WITHOUT AYC)>
1. Lift the vehicle, and release the parking brake.
2. Disconnect the 4WD-ECU connector, and measure at
the connector of the harness.
Caution
Insert the probe from the harness of the connector.
Inserting in the terminal side may cause contact fault.
3. Rotate the measured wheel by about 1/2 to 1
rotations/second, and check the output voltage between
the following terminals using a circuit tester (AC mV range)
or oscilloscope.
Terminal No.
Front leftFront rightRear leftRear right
6987
19222120

FRONT AXLE -Hub and Knuckle Assembly26-6
HUB AND KNUCKLE ASSEMBLY
REMOVAL AND INSTALLATION
Caution
If the vehicle is equipped with the Brembo disc brake, during maintenance, take care not to
contact the parts or tools to the caliper because the paint of caliper will be scratched. And if
there is brake fluid on the caliper, wipe out quickly.
Pre-removal and Post-installation Operation
DTransmission Fluid Draining
DTransfer Oil Draining (Refer to GROUP 22 –
On-vehicle Service.)Pre-removal and Post-installation Operation
DCheck the dust cover for cracks or damage by
pushing it with finger.
DTransfer Oil Filling (Refer to GROUP 22 –
On-vehicle Service.)
DTransmission Fluid Filling
25¶5Nm
1
245¶29 Nm
58
3
4
2
108¶10 Nm
10
11
25¶6Nm
6
9
100¶10 Nm*1
108¶10 Nm*2
167¶9Nm
8.9¶1.9 Nm
*1: Vehicles without BREMBO disc brake
*2: Vehicles with BREMBO disc brake
7
Removal steps
1. Front speed sensor ACD or ABS>
AA"2. Caliper assembly
3. Brake disc
4. Split pin
AB""AA5. Castle nut
6. Dust shield7. Connection for lower arm ball joint
AC"8. Connection for tie rod end
AD"9. Drive shaft
10. Front strut to hub and knuckle
mounting bolt and nut
11. Hub and knuckle assembly

FRONT AXLE -Drive Shaft26-10
DRIVE SHAFT
REMOVAL AND INSTALLATION
Caution
1. If the vehicle is equipped with the Brembo disc brake, during maintenance, take care not to
contact the parts or tools to the caliper because the paint of caliper will be scratched. And
if there is brake fluid on the caliper, wipe out quickly.
2. For vehicles with ABS or ACD, do not strike the rotor for wheel speed sensor installed to
the B.J. outer race of drive shaft against other parts when removing or installing the drive
shaft. Otherwise the rotor for wheel speed sensor will be damaged.
Pre-removal and Post-installation Operation
DTransmission Fluid Draining
DTransfer Oil Draining (Refer to GROUP 22 –
On-vehicle Service.)Pre-removal and Post-installation Operation
DCheck the Dust Cover for cracks or damage by
pushing it with finger.
DTransfer Oil Filling (Refer to GROUP 22 –
On-vehicle Service.)
DTransmission Fluid Filling
1
6 9
8 5
74
3
2 11
25¶4Nm 25¶5Nm
245¶29 Nm
108¶10 Nm
10
11
39¶5Nm
Removal steps
1. Split pin
"BA2. Castle nut
3. Front speed sensor ABS or ACD>
4. Front speed sensor harness brack-
et
5. Brake hose bracket6. Stabilizer bar link connection
7. Lower arm ball joint connection
AA"8. Tie rod end connection
AB""AA9. Drive shaft
AC""AA10. Output shaft
11. Circlip

STEERING -On-vehicle Service37A-9
POWER STEERING FLUID LEVEL CHECK
1. Park the vehicle on a flat, level surface, start the engine,
and then turn the steering wheel several times to raise
the temperature of the fluid to approximately 50 - 60_C.
2. With the engine running, turn the wheel all the way to
the left and right several times.
3. Check the fluid in the oil reservoir for foaming or milkiness.
Check the difference of the fluid level when the engine
is stopped, and while it is running. If the change of the
fluid level is 5 mm or more, air bleeding should be done.
POWER STEERING FLUID REPLACEMENT
1. Raise the front wheels on a jack, and then support them
with rigid racks.
2. Disconnect the return hose connection.
3. Connect a vinyl hose to the return hose, and drain the
oil into a container.
4. Disconnect the ignition coil connectors. (Refer to
GROUP16 - Ignition System.)
5. While operating the starting motor intermittently, turn the
steering wheel all the way to the left and right several
times to drain all of the fluid.
6. Connect the return hoses securely, and then secure it
with the clip.
7. Fill the oil reservoir with specified fluid up to the lower
position of the filter, and then bleed air.
Specified fluid:
Automatic transmission fluid DEXRONII
Caution
Do not use ATF-SPIIM and ATF-SPIII.
POWER STEERING SYSTEM BLEEDING
1. Jack up the vehicle and support the front wheels with
rigid racks.
2. Disconnect the ignition coil connectors. (Refer to
GROUP16 - Ignition System.)
3. Cranking the engine with the starter several times
intermittently (during 15 to 20 seconds), turn the steering
wheel left and right fully five or six times.
Caution
(1) During the bleeding, refill the fluid so that the
level never falls below the lower position of the
filter.
(2) Be sure to bleed air only while cranking. If the
bleeding is done with the engine running, the air
will be broken up and absorbed into the fluid.
4. Connect the ignition coil connectors and idle the engine.
5. Turn the steering wheel left and right fully until no bubbles
comes out in the oil reservoir.
6. See that the fluid is not milky and that the fluid level
is up to the specified position on the level gauge.
7. See that the fluid level changes little when the steering
wheel is turned left and right.
8. Check difference in fluid levels between the engine
stopped and running.
Fluid level change: Within 5 mm
While engine
runningWhile engine
stopped
Return hose
Vinyl hose