Mitsubishi Lancer Evolution IX. Manual — part 618

ON-VEHICLE SERVICE

MANUAL TRANSMISSION (FF)

22A-155

2. 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.

Output voltage:

Above 70 mV when measured with the circuit

tester

Above 200 mVP-P when measured with the

oscilloscope

3. If the output voltage is lower than the above

values, the following reasons may be suspected.
Check or replace the wheel speed sensor.

• Excessive clearance between the ball piece of

the wheel speed sensor and ABS rotor

• Wheel speed sensor fault

INSPECTION PROCEDURE USING
OSCILLOSCOPE

After checking the connected state of the harness of
the wheel speed sensor and connector, and measure
the output voltage waveform of each wheel speed
sensor on the oscilloscope as follows.
Start the engine, shift the transmission to the 1st
gear to rotate the driving wheel, and rotate the
non-driving wheel at constant velocity with the hand.
NOTE:

.

•

It is also possible to actually drive the vehicle and
observe the waveform.

•

The output voltage is low if the wheel speed is
low and gradually increases as the speed
increases.

CAUTION

As the wheel speed sensor cable follows the
movement of the front or rear suspension, it will
change considerably on poor condition roads.
Therefore, also observe the output voltage wave-
form of the wheel speed sensor with the sensor
harness vibrated to simulate special conditions
such as driving in poor road conditions.

Front left

Front right Rear left

Rear right

Terminal
No.6 and
No.19

Terminal
No.9 and
No.22

Terminal
No.8 and
No.21

Terminal
No.7 and
No.20

AC310853

When rotated with the hand

When idling (5 - 6 km/h) 1st gear

10.0 ms/DIV
1 V/DIV

AB

ON-VEHICLE SERVICE

MANUAL TRANSMISSION (FF)

22A-156

<WAVEFORM OBSERVATION POINTS>

OIL TEMPERATURE SENSOR CHECK

M1221006700020

1. Remove the oil temperature sensor.

2. Measure the resistance between terminals 1 and

2 of the oil temperature sensor connector.

Standard value:

3. If the resistance is not within the standard value,

replace the oil temperature sensor.

4. Install the oil temperature sensor, and tighten it to

the specified torque.

Tightening torque: 22

± 2 N⋅m

Phenomenon

Probable cause

Solution

Waveform amplitude is too small or
not output at all

Wheel speed sensor fault

Replace the sensor

Excessive waveform amplitude
(However allowed if above the
minimum amplitude of 100 mV)

Excessive vibration or
concentricity of the axle hub

Replace the hub

4WD-ECU earth fault

Correct

Noise in the waveform or waveform
is abnormal

Open circuit of the sensor

Replace the sensor

Open circuit of the harness

Replace the harness

Wheel speed sensor installation
fault

Correct the installation of the
sensor

Chipping or flattening of the ABS
rotor

Replace the ABS rotor

AC504940

AB

Oil temperature sensor

Filler plug

N

Oil temperature (

°C)

Resistance value (k

Ω)

20

2.31

− 2.59

110

0.145

− 0.146

AC504890

Transmission oil

AB

TRANSMISSION CONTROL

MANUAL TRANSMISSION (FF)

22A-157

TRANSMISSION CONTROL

REMOVAL AND INSTALLATION

M1221003800783

WARNING

•

Be careful not to subject the SRS-ECU to any shocks during removal and installation of
the shift cable and select cable assembly.

•

Do not disassemble the shift lever assembly except the distance piece and bushing.
(non-supply parts)

•

Never use mineral grease for the shift lever assembly moving area. If mineral grease is
used, the plastic parts can be damaged.

Pre-removal Operation
• Air Cleaner Assembly Removal and Installation (Refer to

GROUP 15

P.15-5

).

• Air Pipe C, Air Hose D Removal (Refer to GROUP 15 −

Intercooler

P.15-6

).

• Battery and Battery Tray Removal

AC211367AC

1

2

4

3

5

12

13

10

6

7

8

9

N

11

12 ± 2 N·m

12 ± 2 N·m

6.0 ± 1.5 N·m

Shift cable and select cable
assembly removal steps

1.

Shift knob

•

Front floor console (Refer to
GROUP 52A

P.52A-7

).

2.

Front floor console bracket

>>

C

<< 3.

Select cable connection (Shift
lever side)

4.

Shift cable connection (Shift lever
side)

5.

Clip (Shift lever side)

6.

Snap pin

7.

Shift cable connection
(Transmission side)

<<

A

>> >>

B

<< 8.

Select cable connection
(Transmission side)

<<

B

>> >>

A

<< 9.

Clip

10. Shift cable and Select cable

assembly

Shift lever assembly removal
steps

1.

Shift knob

•

Front floor console (Refer to
GROUP 52A

P.52A-7

).

2.

Front floor console bracket

>>

C

<< 3.

Select cable connection (Shift
lever side)

4.

Shift cable connection (Shift lever
side)

5.

Clip (Shift lever side)

11. Shift lever assembly
12. Distance piece
13. Bushing

TRANSMISSION CONTROL

MANUAL TRANSMISSION (FF)

22A-158

REMOVAL SERVICE POINTS
<<A>> SELECT CABLE CONNECTION
(TRANSMISSION SIDE) REMOVAL

Set the clip of the select cable as shown in figure 1
and 2, and disconnect the select cable.

<<B>> CLIP REMOVAL

Push up the claws of the clip using a screwdriver,
etc., and then remove the clip from the bracket
together with the cables.

INSTALLATION SERVICE POINTS
>>A<< CLIP INSTALLATION

CAUTION

Insert thoroughly the clip, shift cable and select
cable until they click in place.
1. After installing the new clip to the cable bracket of

the transmission, install the shift cable and select
cable to the cable bracket.
NOTE: The clip is reversible.

2. Move the shift lever to all positions and check that

the operation is smooth.

>>B<< SELECT CABLE CONNECTION
(TRANSMISION SIDE) INSTALLATION

CAUTION

Check that the clip is securely installed.

1. Install the clip of the select cable as shown in the

illustration.

AC211243

AC

1

2

Select cable

AC310871AC

Clip

Claws

Gear shift cable,
select cable

AC210558

Gear shift cable, Select cable

New clip

Cable bracket

AE

AC402309

Clip

AC

Select cable