Mitsubishi Outlander (2013+). Manual — part 454

ON-VEHICLE SERVICE

ANTI-SKID BRAKING SYSTEM (ABS)

35B-59

CAUTION

For precise measurement, do not connect to the
wheel speed sensor-side connector and the wir-
ing harness side connector terminal No.1.

AC905456

MB991709

AB

Wheel speed
sensor
connector

Harness
connector

2. Use the special tool test harness (MB991709) to

connect a multimeter between the wheel speed
sensor-side connector and the wiring harness
connector terminal No.2.

3. Turn the ignition switch to the "ON" position.

CAUTION

Do not rotate the wheel too quickly. Output cur-
rent changes significantly as the wheel speed
detection magnetic encoder comes near or goes
away from the wheel speed sensor.

4. Rotate the wheel, on which the wheel speed

sensor is fitted, quite slowly to measure the output
current with the multimeter.

Standard value: 5.9 to 8.4 mA or 11.8 to 16.8
mA

5. If the measurement is not within the standard

value, or the output current does not change in
proportion to the wheel rotation, replace the wheel
speed sensor (Refer to

P.35B-63

<Front>,

P.35B-65

<Rear>).

HYDRAULIC UNIT CHECK

M1352001701184

1. Raise the vehicle using a jack and support the

specified points with a rigid rack.

CAUTION

Before connecting or disconnecting M.U.T.-III,
always turn the ignition switch to the LOCK
(OFF) position.

2. Before setting M.U.T.-III, turn the ignition key to

the LOCK (OFF) position.

3. Confirm that the selector lever is in the "N"

position, and then start the engine.

4. When carrying out the actuator tests No. 01 to 04,

perform the actuator tests using M.U.T.-III while
depressing the brake pedal. When carrying out
the actuator tests, rotate the wheel by hands to
confirm that the braking force changes.

NOTE:

.

•

While performing the actuator test, the ABS
warning lamp flashes at a rate of 2 Hz.

•

When ABS-ECU is disabled due to the
fail-safe function, the M.U.T.-III actuator test
cannot be performed.

•

After the actuator test has been performed,
the ABS warning lamp and brake waning lamp
illuminate until the ignition switch is turned to
ON again or the communication between
M.U.T.-III and ABS-ECU is terminated.

AC000954AM

M.U.T.-III actuator test
(Item No.01, 02, 03, 04) start

Approximately
1 second

Approximately
2 seconds

Approximately
3 seconds

Depressed

Released

Increase in pressure

Reduction in pressure

Steady pressure

Lock

The pedal is free

Pedal
operation

Solenoid
valve
position

Checking
the brake
force

Approximately
0.05 second

ON-VEHICLE SERVICE

ANTI-SKID BRAKING SYSTEM (ABS)

35B-60

5. This is indicated as shown in the above.

6. When any malfunction has been found, take a

necessary action according to the "Judgement
Table."

Judgement Table

Display on
M.U.T.-III

Operation

Inspection
result

Judgem
ent

Probable cause

Remedy

01 FL wheel
speed sensor
02 FR wheel
speed sensor
03 RL wheel
speed sensor
04 RR wheel
speed sensor

• Depress the brake

pedal to lock the
vehicle.

• Select the vehicle

to be inspected
using M.U.T.-III,
perform the
actuator test.

• Rotate the selected

wheel by hands to
confirm the braking
force.

Braking force
decreases for 3
seconds from
the lock status.

Normal

−

−

The wheel
does not lock
even if the
brake pedal is
depressed.

Error

Clogged brake line
other than hydraulic
unit

Check and
clean the brake
line.

Clogged hydraulic
circuit in the hydraulic
unit

Replace the
hydraulic unit
assembly.

Braking force
does not
decrease.

Faulty routing of
hydraulic unit brake
tube

Route the
brake tube
correctly.

Malfunction of
hydraulic unit solenoid
valve operation

Replace the
hydraulic unit
assembly.

7. After the inspection, turn the ignition switch to the

LOCK (OFF) position, and then disconnect
M.U.T.-III.

Hydraulic unit installation adjustment

Operate the pre-removal steps for the hydraulic unit.

(Refer to

P.35B-61

.)

1. Remove all brake tubes.

2. Loosen the mounting bolt and nut of the hydraulic

unit bracket.

3. Install all brake tubes temporarily.

4. Shake hydraulic unit to all directions with both

hands to make the hydraulic unit bracket insulator
fit with the unit.

5. Install the hydraulic unit bracket with mounting

bolt and nut not to load the brake tube.

6. Install all brake tubes securely.

NOTE: Install the flare nut taking care not to let
the brake tube turn together.

7. Operate the post-installation steps of the hydraulic

unit. (Refer to

P.35B-61

.)

HYDRAULIC UNIT

ANTI-SKID BRAKING SYSTEM (ABS)

35B-61

IN THE EVENT OF A DISCHARGED
BATTERY

M1352003500785

WARNING

If the ABS is not operating, the vehicle pos-
ture will be unstable during braking, Do not
drive the vehicle with the ABS-ECU connec-
tor disconnected or with the ABS not operat-
ing for any other reason.

If the engine is started using a booster cable when
the battery is completely flat, and the vehicle is then
driven without waiting for the battery to be recharged,
the engine may misfire and it may not be possible to
drive the vehicle. This is because the ABS consumes
a large amount of current when carrying out its initial
checks. If this happens, recharge the battery fully.

HYDRAULIC UNIT

REMOVAL AND INSTALLATION

M1352008601241

NOTE: ABS-ECU is located in the hydraulic unit.

Pre-removal operation
• Brake fluid draining.

Post-installation operation
• Brake fluid refilling and air bleeding (Refer to GROUP 35A

− On-vehicle Service, Bleeding ).

• Hydraulic unit check (Refer to

P.35B-59

).

ACB06013

16 ± 3 N·m

5

AB

5

1

11

5

10 ± 2 N·m

24 ± 4 N·m

5

9

10

13 ± 2 N·m

3

8

4

5

2

6

7

Removal steps

<<A>>

1.

ABS-ECU harness connector

2.

Suction pipe installation bolt

3.

Wheel speed sensor harness
connector connection

4.

Wheel speed sensor harness clip
connection

>>A<<

5.

Brake tube connection

6.

Brake tube and clip connection

7.

Suction pipe, liquid pipe and clip
connection

8.

Hydraulic unit (ABS-ECU) and
hydraulic unit bracket

<<

B

>>

9.

Hydraulic unit (ABS-ECU)

10. Hydraulic unit bracket insulator
11. Hydraulic unit bracket

HYDRAULIC UNIT

ANTI-SKID BRAKING SYSTEM (ABS)

35B-62

REMOVAL SERVICE POINTS

<<A>> ABS-ECU HARNESS CONNECTOR
DISCONNECTION

ACB04918

AB

Lock lever

Operate the lock lever to disconnect the ABS-ECU
harness connector as shown in the figure.

<<B>> HYDRAULIC UNIT (ABS-ECU)
REMOVAL

CAUTION

• Be careful when removing the hydraulic unit

because it is heavy.

• Never loosen the nuts and the bolts because

the hydraulic unit cannot be disassembled.

• Do not drop or shock the hydraulic unit.
• Do not turn the hydraulic unit upside down or

lay down the unit because the inner air
becomes difficult to be bled.

INSTALLATION SERVICE POINT

>>A<< BRAKE TUBE CONNECTION

ACB04919

AB

2

1

4

5

6

3

Install the brake pipe to the hydraulic unit as shown
in the figure.

1. From master cylinder (primary) <Marking colour:

Blue and white>

2. From master cylinder (secondary) <Marking col-

our: Yellow and white>

3. To front brake (RH) <Marking colour: Orange>
4. To front brake (LH) <Marking colour: Red>
5. To rear brake (RH) <Marking colour: White>
6. To rear brake (LH) <Marking colour: Pink>