Mitsubishi Outlander GS45X. Manual — part 390

ABS DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-181

.

RESISTANCE AND CONTINUITY BETWEEN
HARNESS-SIDE CONNECTOR TERMINALS

Required Special Tool:
MB991974: ABS Check Harness
1. When performing the continuity check, turn the ignition

switch to LOCK (OFF) position, connect the special tool
ABS check harness (MB991974) as shown in the figure, and
disconnect the ABS-ECU connector.

2. Check for continuity between terminals shown in the chart

below.

3. Terminal layout is shown in the figure.

Terminal

No.

Check item

Check conditions

Normal condition

7

ABS-ECU power supply

Ignition switch: ON

Approximately

system voltage

Ignition switch: OFF

1Volt or less

13

Motor power supply

Ignition switch: ON (OFF)

Approximately

system voltage

16

Wheel speed sensor (RR) power supply Ignition switch: ON

Approximately

system voltage

18

Wheel speed sensor (FL) power supply

Ignition switch: ON

Approximately

system voltage

22

Wheel speed sensor (FR) power supply Ignition switch: ON

Approximately

system voltage

24

Wheel speed sensor (RL) power supply Ignition switch: ON

Approximately

system voltage

26

Solenoid valve power supply

Ignition switch: ON (OFF)

Approximately

system voltage

AC611137 BB

ABS-ECU

MB991974

A-01 ABS-ECU
harness connector

Check harness

Terminal No.

Signal

Normal conditions

1

− body ground

Ground

Continuity exists (2

Ω or less)

14

− body ground

Ground

Continuity exists (2

Ω or less)

SPECIAL TOOLS

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ANTI-LOCK BRAKING SYSTEM (ABS)

35B-182

SPECIAL TOOLS

M1352000601797

Tool

Tool number and
name

Supersession

Application

MB991958

a. MB991824
b. MB991827
c. MB991910
d. MB991911
e. MB991914
f. MB991825
g. MB991826

M.U.T.-III sub
assembly

a. Vehicle

communication
interface (V.C.I.)

b. M.U.T.-III USB

cable

c. M.U.T.-III main

harness A
(Vehicles with
CAN
communication
system)

d. M.U.T.-III main

harness B
(Vehicles without
CAN
communication
system)

e. M.U.T.-III main

harness C (for
Daimler Chrysler
models only)

f. M.U.T.-III

measurement
adapter

g. M.U.T.-III trigger

harness

MB991824-KIT
NOTE: G: MB991826
M.U.T.-III Trigger
Harness is not
necessary when
pushing V.C.I. ENTER
key.

CAUTION

M.U.T.-III main harness A
(MB991910) should be used.
M.U.T.-III main harness B and C
should not be used for this
vehicle.
ABS system diagnostics

MB991910

MB991826

MB991958

MB991911

MB991914

MB991824

MB991827

MB991825

DO NOT USE

a

b

c

d

e

f

g

DO NOT USE

SPECIAL TOOLS

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ANTI-LOCK BRAKING SYSTEM (ABS)

35B-183

MB991223

a. MB991219
b. MB991220
c. MB991221
d. MB991222

Harness set

a. Test harness
b. LED harness
c. LED harness

adaptor

d. Probe

General service tools Continuity check and voltage

measurement at harness wire or
connector for loose, corroded or
damaged terminals, or terminals
pushed back in the connector.

a. Connector pin contact

pressure inspection

b. Power circuit inspection
c. Power circuit inspection
d. Commercial tester connection

MB992006
Extra fine probe

−

Continuity check and voltage
measurement at harness wire or
connector for loose, corroded or
damaged terminals, or terminals
pushed back in the connector.

MB991974
ABS check harness

−

Measure the voltage and
resistance at the ABS-ECU

MB991709
Wiring harness set

−

Output current measure at the
wheel speed sensor

Tool

Tool number and
name

Supersession

Application

MB991223

a

d

c

b

DO NOT USE

BA

MB992006

B991974

ON-VEHICLE SERVICE

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ANTI-LOCK BRAKING SYSTEM (ABS)

35B-184

ON-VEHICLE SERVICE

WHEEL SPEED SENSOR OUTPUT CURRENT
MEASUREMENT

M1352032800032

Required Special Tools:

• MB991709: Wiring harness set

The relevant wheel, on which the wheel speed sensor is fitted,
should be free to run.
1. Remove the wheel speed sensor connector to be checked.

CAUTION

For precise measurement, do not connect to the wheel
speed sensor-side connector and the wiring harness side
connector terminal No.1.
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 current
changes significantly as the wheel speed detection mag-
netic 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-189

).

HYDRAULIC UNIT CHECK

M1352001701139

Required Special Tools:

• MB991958: M.U.T.-III Sub Assembly

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A (Vehicles with

CAN communication system)

1. Raise the vehicle using a jack and support the specified

points with a rigid rack.

CAUTION

Before connecting or disconnecting scan tool, always turn
the ignition switch to the LOCK (OFF) position.
2. Before setting scan tool, turn the ignition key to the LOCK

(OFF) position.

AC905456

MB991709

AB

Wheel speed
sensor
connector

Harness
connector