Mitsubishi 380. Manual — part 949

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-21

Q: Is the harness wire between ABS-ECU connector A-02

(terminal 5, 16) and wheel speed sensor <front: LH>
connector A-04 (terminal 1, 2) damaged?
YES : Repair the wiring harness. Then go to Step 16.
NO : Go to Step 14.

STEP 10. Check ABS-ECU connector A-02, intermediate
connector C-25 and wheel speed sensor <rear: RH>
connector D-30 for loose, corroded or damaged terminals,
or terminals pushed back in the connector.
Q: Are ABS-ECU connector A-02, intermediate connector

C-25 and wheel speed sensor <rear: RH> connector
D-30 damaged?
YES : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. Then go to Step 16.

NO : Go to Step 11.

SIGNAL

TERMINAL NO.

NORMAL CONDITION

ABS (A-02)

SENSOR

FR wheel speed sensor
(A-01)

9

2

Less than 2 ohms

10

1

Less than 2 ohms

RR wheel speed sensor
(D-30)

8

1

Less than 2 ohms

19

2

Less than 2 ohms

FL wheel speed sensor
(A-04)

16

2

Less than 2 ohms

5

1

Less than 2 ohms

RL wheel speed sensor
(D-31)

6

1

Less than 2 ohms

17

2

Less than 2 ohms

35DB033A

CONNECTOR: C-25

C-25

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-22

STEP 11. Check the harness wires and continuity
resistance between ABS-ECU connector A-02 (terminal 8,
19) and wheel speed sensor <rear: RH> connector D-30
(terminal 1, 2). (see figure and table below).

NOTE: The special tool (Inspection test harness) MB991219
for connector pin contact pressure should be used. The test
probe should never be forcibly inserted, as it may cause a
defective contact.

Q: Is the harness wire between ABS-ECU connector A-02

(terminal 8, 19) and wheel speed sensor <rear: RH>
connector D-30 (terminal 1, 2) damaged?
YES : Repair the wiring harness. Then go to Step 16.
NO : Go to Step 14.

SIGNAL

TERMINAL NO.

NORMAL CONDITION

ABS (A-02)

SENSOR

FR wheel speed sensor
(A-01)

9

2

Less than 2 ohms

10

1

Less than 2 ohms

RR wheel speed sensor
(D-30)

8

1

Less than 2 ohms

19

2

Less than 2 ohms

FL wheel speed sensor
(A-04)

16

2

Less than 2 ohms

5

1

Less than 2 ohms

RL wheel speed sensor
(D-31)

6

1

Less than 2 ohms

17

2

Less than 2 ohms

ABS-ECU
CONNECTOR
(A-02)

Supply

Signal

WHEEL SPEED
SENSOR

Wheel speed
sensor connectors:
A-04, A-01, D-31, D-30

Terminals:
5, 10, 17, 19

35DB123A

Terminals:
16, 9, 6, 8

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-23

STEP 12. Check ABS-ECU connector A-02, intermediate
connector C-25 and wheel speed sensor <rear: LH>
connector D-31 for loose, corroded or damaged terminals,
or terminals pushed back in the connector.

Q: Are ABS-ECU connector A-02, intermediate connector

C-25 and wheel speed sensor <rear: LH> connector
D-31 damaged?
YES : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. Then go to Step 16.

NO : Go to Step 13..

STEP 13. Check the harness wires and continuity
resistance between ABS-ECU connector A-02 (terminal 6,
17) and wheel speed sensor <rear: LH> connector D-31
(terminal 1, 2). (see figure and table below).

NOTE: The special tool (Inspection test harness) MB991219
for connector pin contact pressure should be used. The test
probe should never be forcibly inserted, as it may cause a
defective contact.

35DB033A

CONNECTOR: C-25

C-25

ABS-ECU
CONNECTOR
(A-02)

Supply

Signal

WHEEL SPEED
SENSOR

Wheel speed
sensor connectors:
A-04, A-01, D-31, D-30

Terminals:
5, 10, 17, 19

35DB123A

Terminals:
16, 9, 6, 8

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-24

Q: Is the harness wire between ABS-ECU connector A-02 (

terminal 6, 17) and wheel speed sensor <rear: LH>
connector D-31 (terminal 1, 2) damaged?
YES : Repair the wiring harness. Then go to Step 16.
NO : Go to Step 14.

STEP 14. Inspect the wheel speed sensor.
Check the wheel speed sensor relevant to the DTC code. For
the applicable inspection procedure, refer to

P.35B-96

.

• When DTC code C1200 is set: Front right wheel speed sen-

sor

• When DTC code C1205 is set: Front left wheel speed sen-

sor

• When DTC code C1210 is set: Rear right wheel speed sen-

sor

• When DTC code C1215 is set: Rear left wheel speed sen-

sor

Q: Is the wheel speed sensor damaged?

YES : Replace the wheel speed sensor. Then go to Step

16.

NO : Still replace the wheel speed sensor. Then go to Step

15

SIGNAL

TERMINAL NO.

NORMAL CONDITION

ABS (A-02)

SENSOR

FR wheel speed sensor
(A-01)

9

2

Less than 2 ohms

10

1

Less than 2 ohms

RR wheel speed sensor
(D-30)

8

1

Less than 2 ohms

19

2

Less than 2 ohms

FL wheel speed sensor
(A-04)

16

2

Less than 2 ohms

5

1

Less than 2 ohms

RL wheel speed sensor
(D-31)

6

1

Less than 2 ohms

17

2

Less than 2 ohms