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Mitsubishi Lancer Evolution 7. Manual - part 254

MANUAL TRANSMISSION - Troubleshooting <ACD>

22A-39

Termi-

nal no.

Normal state

Check condition

Check item

24*

Longitudinal G sensor

earth, lateral G sensor

earth

Any time

1 V or less

ECU earth

Any time

1 V or less

ECU backup power

supply

Any time

System voltage

Pressure sensor

Ignition switch: ON

0.5 - 1.5 V

Steering wheel sensor

<ST-1>

Ignition switch: ON

Steering wheel: Turn slowly

1 - 2 V ↔ 2.5 -

4.5 V flushing

Steering wheel sensor

<ST-2>

Ignition switch: ON

Steering wheel: Turn slowly

1 - 2 V ↔ 2.5 -

4.5 V flushing

Diagnosis data input/

output

Idle switch

Ignition switch: ON

Accelerator pedal: Full closed

1 V or less

Accelerator pedal: Depress

4.5 - 5.0 V

Parking brake switch

Ignition switch: ON

Parking brake lever: Pull

1 V or less

Parking brake lever: Release

System voltage

Stop lamp switch

Ignition switch: ON

Brake pedal: Depress

System voltage

Brake pedal: Release

1 V or less

TPS

Ignition switch: ON

Accelerator pedal: Full closed

0.5 - 0.7 V

Accelerator pedal: Full throttle

4.5 - 5.5 V

ACD mode indicator

lamp <TARMAC>

Ignition switch: ON

ACD mode indicator lamp position:

TARMAC

0 V

ACD mode indicator lamp position:

Except for above

Approx. 10.5 V

ECU earth

Any time

1 V or less

Pressure sensor earth

Any time

1 V or less

Steering wheel sensor

ST N

Ignition switch: ON

Steering wheel: Neutral

1 - 2 V

<ST-N>

Steering wheel: Turn from the

neutral position

2.5 - 4.5 V

Diagnosis control

ACD mode switch

Ignition switch: ON

Switch: Press

System voltage

Switch: Release

0 V

49*

ABS monitor

With ABS not active

System voltage

With ABS active

1.5 V or less

50*

Earth

Any time

1 V or less

ACD mode indicator

lamp <SNOW>

Ignition switch: ON

ACD mode indicator lamp position:

SNOW

0 V

ACD mode indicator lamp position:

Except for above

Approx. 10.5 V

ACD mode indicator

lamp <GRAVEL>

Ignition switch: ON

ACD mode indicator lamp position:

GRAVEL

0 V

ACD mode indicator lamp position:

Except for above

Approx. 10.5 V

MANUAL TRANSMISSION - On-vehicle Service

22A-40

ON-VEHICLE SERVICE

TRANSMISSION OIL CHECK

1. Remove the oil filler plug.

2. Oil level should be at the lower portion of the filler plug

hole.

3. Check that the transmission oil is not noticeably dirty,

and that it has a suitable viscosity.

4. Tighten the filler plug to the specified torque.

Tightening torque: 32 ± 2 N·m

TRANSMISSION OIL REPLACEMENT

1. Remove oil filler plug and oil drain plug.

2. Drain oil.

3. Tighten the oil drain plug to the specified torque.

Tightening torque: 32 ± 2 N·m

4. Fill with specified oil till the level comes to the lower portion

of oil filler plug hole.
Specified transmission oil:

Gear oil SAE 75W-90 or 75W-85W conforming to

API GL-4

Quantity: 2.8 L

5. Tighten the oil filler plug to the specified torque.

Tightening torque: 32 ± 2 N·m

TRANSFER OIL CHECK

1. Remove the oil filler plug.

2. Oil level should be at the lower portion of the filler plug

hole.

3. Check that the transfer oil is not noticeably dirty, and

that it has a suitable viscosity.

4. Tighten the filler plug to the specified torque.

Tightening torque: 32 ± 2 N·m

TRANSFER OIL REPLACEMENT

1. Remove oil filler plug and oil drain plug.

2. Drain oil.

3. Tighten the oil drain plug to the specified torque.

Tightening torque: 32 ± 2 N·m

Transmission oil

Filler plug hole

Filler plug

Drain plug

Transfer oil

Filler plug hole

Filler plug

Drain plug

Oil pan

MANUAL TRANSMISSION - On-vehicle Service

22A-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 <Vehicles without ACD or vehicles without

ACD and AYC>
0.6 L <Vehicles with ACD or vehicles with ACD

and AYC>

5. Tighten the oil filler plug to the specified torque.

Tightening torque: 32 ± 2 N·m

FLUID CHECK <VEHICLES WITH ACD OR

VEHICLES WITH ACD AND AYC>

1. Remove the maintenance lid located in the luggage

compartment.

2. <Not using MUT-II>

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.
<Using MUT-II>
Set the MUT-II to the 16-pin diagnosis connector. Turn ON
the ignition switch, perform MUT-II actuator 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 Service

22A-42

BLEEDING <VEHICLES WITH ACD OR

VEHICLES WITH ACD AND AYC>

1. Lift up the vehicle.

2. Set the MUT-II to 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-II actuator 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.

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.

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 <VEHICLES WITH

ACD OR VEHICLES WITH ACD AND AYC>

1. Lift up the vehicle.

Set the MUT-II to 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

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