1998 MITSUBISHI LANCER EVOLUTION IV steering wheel

REAR AXLE – Troubleshooting 27-24
7. CHECK AT AYC-ECU TERMINALS
7-1 TERMINAL VOLTAGE LISTING
(1) The voltage is to be measured across each terminal and ground terminal.
(2) Fig. below shows the arrangement of the terminals.
Terminal
No.Check itemCheck requirementNormally
1Lateral acceleration sensorIgnition switch: ON2.4 – 2.6 V
(horizontal position)
2Longitudinal acceleration
sensor ground
Lateral acceleration sensor
groundAt all times0 V
3Longitudinal acceleration
sensorIgnition switch: ON2.4 – 2.6 V
(horizontal position)
4Steer sensor (ST-2)Engine: Idle speed
Turn steering wheel slowly.0 V ↔ approx. 3 V
flashing
5Steer sensor (ST-1)Engine: Idle speed
Turn steering wheel slowly.0 V ↔ approx. 3 V
flashing
6*1FR wheel speedVehicle stationary1 V or less
Forward vehicle slowly.0 – 5 V
7*1FL wheel speedVehicle stationary1 V or less
Forward vehicle slowly.0 – 5 V
8*1RR wheel speedVehicle stationary1 V or less
Forward vehicle slowly.0 – 5 V
9*1FL wheel speedVehicle stationary1 V or less
Forward vehicle slowly.0 – 5 V
10Diagnosis selection inputBattery voltage
11Stop lamp switchIgnition switch:
ON
Stop lamp switch: ONBattery voltage
ON
Stop lamp switch: OFF1 V or less
12*1ABS monitorWhen ABS monitor is activatedBattery voltage
When ABS monitor is deactivated1 V or less
17Steer sensor (ST-N)Engine:
Idle speed
Steering wheel: Neutral position0.5 V or less
Idle speed
Steering wheel: Turned 90 from
neutral position2.5 – 3.5 V

REAR AXLE – On-vehicle Service 27-29
3-2 TORQUE TRANSFER MECHANISM
(1) Remove the drain plug to discharge the gear oil.
(2) Fit the drain plug and tighten it to the specified torque.
(3) Remove the filler plug and add the specified gear oil
up to the bottom end of the filler plug hole.
Specified gear oil:
MITSUBISHI GENUINE DIA QUEEN SUPER AYC
FLUID
Quantity used: 0.70
0
0.05dm3{0.700
0.05}
(4) Fit the filler plug and tighten it to the specified torque.
4. FLUID LEVEL CHECK
(1) Remove the maintenance lid located in the luggage
compartment.
(2) If the vehicle has been run, leave it for 5 min. or more
in an ordinary temperature (10
C to 30
C) to allow the
accumulator internal pressure to drop.
NOTE
If the ambient temperature is less than 10
C or less,
allow more time to leave the vehicle to stand idle.
(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: MITSUBISHI DIA QUEEN ATF-SPII
(5) Reinstall the maintenance lid.
5. BLEEDING
(1) Lift up the vehicle.
(2) Remove the cap of the left bleeder screw on the torque
transfer differential and connect a vinyl hose.
(3) Gradually turn the steering wheel clockwise from the
straight-ahead position. At this time, loosen the left bleeder
screw and check that fluid is discharged with air.
(4) After air has been completely discharged, tighten the
bleeder screw.
Caution
While the system is being bled of air, add fluid as
necessary to ensure that it is left in the oil reservoir
during the entire procedure.
(5) Repeat steps (3) and (4) two to three times until no air
bubbles are recognized in the fluid that comes out. Then,
tighten the bleeder screw to the specified torque.
Tightening torque: 9 Nm {0.9 kgf
m}
(6) Perform steps (2) through (5) for the right bleeder screw.
Note, however, that the steering wheel should be turned
counterclockwise.
Filler plug
49 Nm {5.0 kgf
m}
Gear oil
Drain plug
49 Nm
{5.0 kgf
m}
Bleeder
screws Vinyl hose

REAR AXLE – Sensor Relay 27-52
SENSOR RELAY
REMOVAL AND INSTALLATION
12
3
4
Steer sensor removal steps
Steering wheel and column cover
(Refer to GROUP 37 – Steering Wheel
and Shaft.)
A1. Steer sensorAcceleration sensor and AYC relay
removal
2. Longitudinal acceleration sensor
3. Lateral acceleration sensor
4. AYC relay
NOTE
For the wheel speed sensor, refer to GROUP 35B.
REMOVAL SERVICE POINT
ASTEER SENSOR REMOVAL
Remove the steer sensor from the column switch.
Caution
(1) A photocoupler is used as the steer sensor. Use care
not to allow dust or grease to be on the sensor.
(2) Do not bend or dirty with grease the slit plate on
the column switch side.Slit plate
Steer sensor

REAR SUSPENSION – Service Specifications / Lubricant / Special Tools34-2
SERVICE SPECIFICATIONS
ItemsStandard value
Toe-in mm3 ± 2
Camber–1
00 ± 30’
Rear thrust angle0
00 ± 9’
Upper arm ball joint turning torque Nm {kgf
cm}0.5 – 2.5 {5 – 25}
Trailing arm ball joint turning torque Nm {kgf
cm}0.5 – 2.5 {5 – 25}
Toe control arm ball joint turning torque Nm {kgf
cm}0.5 – 2.5 {5 – 25}
Toe control arm slide bushing operating torque Nm {kgf
cm}0.2 – 1.5 {2 – 15}
Stabilizer link ball joint turning torque Nm {kgf
cm}1.7 – 3.1 {17 – 32}
LUBRICANT
ItemsSpecified lubricantQuantity
Inside and lips of upper arm ball joint dust coverMolybdenum disulfide-base chassis grease:
SHOWA SHELL SEKIYU SUNLITE MB2
As required
Inside and lips of trailing arm ball joint dust coverSHOWA SHELL SEKIYU SUNLITE MB2,
NISSEKI CLAKNOCK FL, or equivalent
Inside and lips of control arm ball joint dust cover
Inside and lips of stabilizer link ball joint dust coverSHOWA SHELL SEKIYU VARIANT R-2 or
equivalent
SPECIAL TOOLS
ToolNumberNameUse
MB991004Wheel alignment
gauge attachmentMeasurement of wheel alignment with aluminum wheels>
MB990326Preload socketMeasurement of ball joint turning torque
MB990635,
MB991113, or
MB991406Steering linkage
pullerDisconnection of ball joint from knuckle
MB990800Ball joint remover &
installerPressfitting of ball joint dust cover

BASIC BRAKE SYSTEM – Brake Pedal35A-4
BRAKE PEDAL
REMOVAL AND INSTALLATION
Pre-removal Operation

Instrument Under Cover Removal

Steering Column Assembly Removal
(Refer to GROUP 37A – Steering Wheel and Shaft.)

Accelerator Pedal RemovalPost-installation Operation

Accelerator Pedal Installation

Steering Column Assembly Installation
(Refer to GROUP 37A – Steering Wheel and Shaft.)

Instrument Under Cover Installation

Brake Pedal Adjustment (Refer to P.35A-2.)
29 Nm
12 Nm
14 Nm
1 2
3
4 5
67 813 Nm
11
910
8 9
Removal steps
1. Stop lamp switch connector
2. Stop lamp switch
3. Snap pin
4. Clevis pin
5. Brake pedal shaft bolt
6. Brake pedal7. Brake pedal pad
8. Brake pedal return spring
9. Bushing
10. Pipe
11. Pedal support member

ABS – Troubleshooting35B-11
3. INSPECTION CHART FOR TROUBLE SYMPTOMS
Get an understanding of the trouble symptoms and check according to the inspection procedure chart.
Trouble symptomsInspection pro-
cedure No.Reference page
When the ignition key is turned to “ON” (engine stopped), the ABS warning lamp
does not illuminate.135B-12
Even after the engine is started, the ABS warning lamp remains illuminated.235B-13
After the ignition key is turned to “ON”, the ABS warning lamp blinks twice, and
when turned to “START”, it illuminates. When returned to “ON”, the lamp
flashes once, and then switches off.335B-13
When the ignition key is turned to “START”, the ABS warning lamp does not
illuminate.435B-14
Brake operation is abnormal535B-14
Caution
(1) If steering movements are made when driving at high speed, or when driving on road surfaces
with low frictional resistance, or when passing over bumps, the ABS may operate even though
sudden braking is not being applied. Because of this, when getting information from the customer,
check if the problem occurred while driving under such conditions as these.
(2) During ABS operation, the brake pedal may vibrate or may not be able to be depressed. Such
phenomena are due to intermittent changes in hydraulic pressure inside the brake line to prevent
the wheels from locking and is not an abnormality.

37A-1
STEERING
CONTENTS
SERVICE SPECIFICATIONS 2. . . . . . . . . . . . . .
SPECIAL TOOLS 2. . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 2. . . . . . . . . . . . . . . . . .
1. Steering Angle Check 2. . . . . . . . . . . . . . . . .
2. Oil Pump Belt Tension Check and
Adjustment 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
STEERING WHEEL
3. . . . . . . . . . . . . . . . . . . .
POWER STEERING GEAR & LINKAGE 3. . .
POWER STEERING OIL PUMP 7. . . . . . . . . . .
POWER STEERING FLUID COOLER 9. . . . .

STEERING – Service Specifications / Special Tools / On-vehicle Service37A-2
SERVICE SPECIFICATIONS
ItemsStandard value
Steering angleEVOLUTION-IVInner wheel33
30’ ± 2

Outer wheel28
20’
EVOLUTION-VInner wheel33
10’ ± 2

Outer wheel28
10’
Steering gearPinion total turning torque
Nm {kgfcm}
Total turning torque0.9 – 1.7 {9 – 17}
Nm {kgf
cm}Torque fluctuations0.4 {4} or less
SPECIAL TOOLS
ToolNumberNameUse
MB991197Installer barPressfitting of gear housing oil seal
MB991199Oil seal installer
MB991214Oil seal protectorInstallation of rack assembly
ON-VEHICLE SERVICE
1. STEERING ANGLE CHECK
Locate front wheels on turning radius gauge and measure
steering angle.
Standard value:
Inner wheel
33
30’ ± 2

33
10’ ± 2

Outer wheel
28
20’
28
10’
When the angle is not within the standard value, the toe
is probably incorrect. Adjust toe (Refer to GROUP 33A –
On-vehicle Service) and recheck steering angle.
2. OIL PUMP BELT TENSION CHECK AND
ADJUSTMENT
Refer to GROUP 11 – Engine Adjustments.