wheel MITSUBISHI 380 2005 Repair Manual

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-41
VOLTAGE AND SIGNAL CHECK AT ABS-ECU
(A-02) USING OSCILLOSCOPE
NOTE: If the ABS-8 ECU or the active wheel speed
sensor are disconnected, or if the wiring is an open/
short circuit, the ABS 8 ECU will shut off power sup-
ply to the respective wheel speed sensor. All other
wheel speed sensors will operate normally. To
restore the power supply, the ignition switch must be
turned to the "OFF" position then to the "ON" position
again..
WHEEL SPEED SENSOR AIR GAP:
Sensor air gap: (0.2mm - 0.85mm).
.
Measure supply voltage for wheel speed sensor using an
oscilloscope.
(1) ABS-ECU must remain connected.
(2) Wheel speed sensors must emain connected
(3) Remove ABS connector protection cap to access terminal
location from the rear of connector for back-probing.
(4) Using probe (MB991222) , backprobe the wheel speed
sensor voltage supply circuit terminals (16, 9, 6 and 8) at
the ABS-ECU connector (A-02) individually.
(5) Connect oscilloscope (as per figure 1) shows, to the
appropriate terminal positions and check supply voltage
individually with scope.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-43
(7) The recommended Supply Voltage at terminals 16, 9, 6,
and 8 are:
Set value: 10.0Volts - 14.5Volts
Q: Is the supply voltage within the set value?
YES : Check wheel speed sensor signal at ABS-ECU using
an oscillopscope
NO :
Refer to Power supply systemP.35B-63
Refer to Motor supply systemP.35B-48
Refer to Valve relay systemP.35B-56
Measure wheel speed sensor signals using an
oscilloscope.
NOTE: To check connections of the wheel speed sensors,
remove the rear seat to access the rear wheel speed sen-
sor connectors, and remove inner front guard (splash
shield) to access the front wheel speed sensors.
(1) Wheel speed sensor must remain connected to measure
active sensor.
(2) ABS-ECU must remain connected.
(3) Remove ABS connector protection cap to access terminal
location from the rear of connector for back-probing.
(4) Using probe (MB991222), backprobe the wheel speed
sensor signal circuit terminals (5, 10, 17, 19), and check
individually at the ABS-ECU connector A-02
(5) The wheel to be tested must be free to turn by hand or be
driven by brake dynamometer
(6) Connect oscilloscope (as per figure 2) shows, to the
appropriate terminal positions and check sensor operation
individually with scope.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-44
Connect oscilloscope to FL sensor signal terminal (5) at
ABS-ECU (A-02)
Connect oscilloscope to FR sensor signal terminal (10)
at ABS-ECU (A-02)
Connect oscilloscope to RL sensor signal terminal (17)
at ABS-ECU (A-02)
Connect oscilloscope to RR sensor signal terminal (19)
at ABS-ECU (A-02)
(7) Recommended Oscilloscope setting:
Y-axis: 2Volts
X-axis: 100ms
(8) Turn the ignition switch to the "ON" position.
(9) Turn wheel by hand at approximately 1 revolution per
second (r/sec) or drive on brake dynamometer at 5km/h.
The measurement reading of the active wheel speed sen-
sors on the oscilloscope should correspond to figure 3
below.
NOTE: If the oscilloscope signal shape is correct and wheel
sensor air gap is within specification, but the voltage values are
either higher or lower as shown in the table below, the wheel
speed sensor must be changed.

ON-VEHICLE SERVICE
TRACTION CONTROL SYSTEM (TCL)13C-48
To prevent damage to diagnostic tool MB991958, always
turn the ignition switch to the "LOCK" (OFF) position
before connecting or disconnecting diagnostic tool
MB991958.
1. Connect diagnostic tool MB991958 to the data link
connector. (Refer to P.13C-3).
2. Turn the ignition switch to the "ON" position.
The engine speed increases after the actuator test
because the actuator test continues for only three sec-
onds. Therefore, release the accelerator pedal immedi-
ately.
3. Use diagnostic tool MB991958 to check the actuator test.
(Refer to P.13C-3).
Item 09: Engine TCL Drive.
When the accelerator pedal is depressed at the same
time that the button for actuator test item 09 displayed
on diagnostic tool MB991958 is pressed, the system
prevents the engine speed from rising for three sec-
onds.
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect diagnostic tool MB991958.
6. If defective, repair it. (Refer to P.13C-34, TCL diagnosis

Symptom Procedures
Inspection Procedure 6).
TCL SWITCH CHECKM1136001700024
1. Remove the TCL switch. (Refer to P.13C-49).
2. Measure the resistance between terminal 1 and terminal 2
when the TCL switch is pressed or released. If the values
measured at the time correspond to those in the table below,
the resistance values are correct.
WHEEL SPEED SENSOR CHECKM1136001300026
Refer to GROUP 35B, On-vehicle Service P.35B-88.
SWITCH
POSITIONTESTER
CONNECTIONSPECIFIED
CONDITION
Pressed 1-2 Less than 2
ohms
Released 1-2 Open circuit

TCL SWITCH
TRACTION CONTROL SYSTEM (TCL)13C-49
TCL SWITCH
REMOVAL AND INSTALLATIONM1136001600027
WHEEL SPEED SENSOR
REMOVAL AND INSTALLATIONM1136002500023
Refer to GROUP 35B, Wheel Speed Sensor P.35B-95.
ABS/TCL-ECU
REMOVAL AND INSTALLATIONM1136005300017
Replace the hydraulic unit (integrated with ABS/TCL-ECU). (Refer to GROUP 35B, Hydraulic Unit P.35B-93).
REMOVAL STEPS
HOOD LOCK RELEASE HANDLE
(REFER TO GROUP 42, HOOD P.42-8.)
INSTRUMENT LOWER PANEL (REFER
TO GROUP 52A, INSTRUMENT PANEL
ASSEMBLY P.52A-4.)
INSTRUMENT PANEL GARNISH
(REFER TO GROUP 52A,
INSTRUMENT PANEL ASSEMBLY
P.52A-4.)
1. SWITCH BEZEL ASSEMBLY
2. SWITCH PANEL ASSEMBLY
3. TCL SWITCH REMOVAL STEPS (Continued)

AUTO-CRUISE CONTROL
ENGINE AND EMISSION CONTROL17-75
AUTO-CRUISE CONTROL
REMOVAL AND INSTALLATIONM1172001400467
Before removal of the air bag module, refer to GROUP 52B, SRS Service Precautions
P.52B-16 and GROUP 52B, Air Bag Module and Clock Spring P.52B-237.
CONTROL SWITCH REMOVAL
STEPS
1. AIR BAG MODULE SIDE> (REFER TO GROUP 52B, AIR
BAG MODULES AND CLOCK
SPRING P.52B-237)
2. STEERING WHEEL ASSEMBLY
(REFER TO GROUP 37, STEERING
WHEEL P.37-23)
3. LOWER COVER CAP
4. AUTO-CRUISE CONTROL SWITCH
CONTROL UNIT REMOVAL
5. Engine ECU [REFER TO GROUP
13A, Engine ECU 13A-675] SENSOR REMOVAL STEPS
6. TRANSMISSION INHIBITOR
SWITCH (REFER TO GROUP 23B,
AUTOMATIC TRANSMISSION)
7. THROTTLE BODY (BUILT-IN
THROTTLE POSITION SENSOR
AND THROTTLE ACTUATOR
CONTROL MOTOR) (REFER TO
GROUP 13A, THROTTLE BODY
13A-660)
8. ACCELERATOR PEDAL (BUILT-IN
ACCELERATOR PEDAL POSITION
SENSOR) (REFER TO GROUP 17,
ACCELERATOR PEDAL P.17-9)
9. STOPLIGHT SWITCH (REFER TO
GROUP 35A, BRAKE PEDAL
P.35A-24)

SPECIFICATIONS
ENGINE AND EMISSION CONTROL17-85
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONSM1173006400324
SERVICE SPECIFICATIONSM1173000300545
ITEM SPECIFICATION
Auto-cruise control system
Lower cover cap bolt 9.0
2.0 Nm (80 17 in-lb)
Steering wheel assembly nut 41
8 Nm (30 6 ft-lb)
Engine control system
Accelerator pedal assembly nut 13
2 Nm ( 111 22 in-lb)
ITEMSSTANDARD VALUE
Engine control system
Curb idle speed r/min 3.8L Engine 680
100
Emission control system
Purge flow cm
3/s (SCFH) [at 80 95C (176 205F) with sudden revving]20 (2.5)
Evaporative emission purge solenoid coil resistance [at 20
C)] 16

26-1
GROUP 26
FRONT AXLE
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .26-2
FRONT AXLE DIAGNOSIS . . . . . . . .26-2
TROUBLESHOOTING STRATEGY . . . . . . 26-2
SYMPTOM CHART. . . . . . . . . . . . . . . . . . . 26-3
SYMPTOM PROCEDURES . . . . . . . . . . . . 26-3
SPECIAL TOOLS . . . . . . . . . . . . . . . .26-4
ON-VEHICLE SERVICE . . . . . . . . . . .26-8
WHEEL BEARING END PLAY CHECK . . . 26-8
HUB BOLT REPLACEMENT . . . . . . . . . . . 26-8
FRONT AXLE HUB ASSEMBLY . . . .26-9
REMOVAL AND INSTALLATION . . . . . . . . 26-9
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 26-12
DRIVE SHAFT ASSEMBLY . . . . . . . .26-13
REMOVAL AND INSTALLATION . . . . . . . . 26-13
DISASSEMBLY AND ASSEMBLY . . . . . . . 26-18
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 26-25
BJ BOOT REPLACEMENT . . . . . . . . . . . . . 26-26
SPECIFICATIONS . . . . . . . . . . . . . . .26-29
FASTENER TIGHTENING SPECIFICATIONS26-29
GENERAL SPECIFICATIONS . . . . . . . . . . 26-29
SERVICE SPECIFICATIONS . . . . . . . . . . . 26-29
LUBRICANTS . . . . . . . . . . . . . . . . . . . . . . . 26-30

GENERAL DESCRIPTION
FRONT AXLE26-2
GENERAL DESCRIPTIONM1261000100370
The front axle consists of front hubs, knuckles, wheel
bearings and drive shafts, and has the following fea-
tures:
The wheel bearing incorporates double-row
angular contact ball bearing for reduced friction.
The front wheel hub assembly combines the hub,
wheel bearing, and oil seal in a single unit for
fewer parts, better durability, improved assembly
precision, and better structural organization.
The driveshaft incorporates BJ-PTJ type constant
velocity joints with high transmission efficiency for
low vibration and noise.
Due to the use of the inner shaft and bracket
assembly, the right and left drive shafts are
approximately the same in length. This reduces
noise, vibration and torque steer.L-RH>
The dynamic damper is mounted on the LH drive-
shaft.
ABS rotor for detecting the wheel speed is
press-fitted to the BJ.
NOTE: .
TJ: Tripod Joint
PTJ: Pillow Tripod Joint
BJ: Birfield Joint
CONSTRUCTION DIAGRAM
FRONT AXLE DIAGNOSIS
TROUBLESHOOTING STRATEGYM1261005600240
Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will be sure that you
have exhausted most of the possible ways to find a front axle fault.
1. Gather information from the customer.

FRONT AXLE DIAGNOSIS
FRONT AXLE26-3
2. Verify that the condition described by the
customer exists.3. Find the malfunction by following the Symptom
Chart.
4. Verify malfunction is eliminated.
SYMPTOM CHARTM1261005700269
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Noise during Wheel Rotation
DIAGNOSIS
STEP 1. Check the wheel bearing end play.
(1) Remove the caliper assembly and suspend it with a wire.
(2) Remove the brake disc from the front hub.
(3) Attach a dial gauge as shown in the illustration, and then
measure the end play while moving the hub in the axial
direction.
Limit: 0.05 mm (0.002 inch)
Q: Is the wheel bearing end play within the limit?
YES : Go to step 2.
NO : Replace the part, then go to Step 5.
STEP 2. Check the drive shaft and inner shaft for bending.
Q: Is the drive shaft and inner shaft bent?
YES : Replace the part. Then go to Step 5.
NO : Go to step 3.
STEP 3. Check the center bearing for wear.
Q: Is the center bearing worn?
YES : Replace the bearing. Then go to Step 5.
NO : Go to step 4.
STEP4. Check the drive shaft assembly for wear or
damage.
Q: Is the drive shaft assembly worn or damaged?
YES : Replace the drive shaft assembly. Then go to Step 5.
NO : There is no action to be taken. SYMPTOM INSPECTION
PROCEDUREREFERENCE PAGE
Drive shaft Noise during wheel rotation 1
P.26-3
Noise due to excessive play of wheel in turning
direction2
P.26-4