Mitsubishi Galant 9G. Manual — part 1608

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-16

STEP 6. Measure the resistance at the ABS-ECU connector
A-02.
(1) Disconnect the connector A-02, and connect special tool

ABS Check Harness (MB991970) to the wiring
harness-side connector.
NOTE: Do not connect special tool ABS Check Harness
(MB991970) to the ABS-ECU.

(2) Measure the resistance between the ABS-ECU connector

terminals.

• DTC C1200 is set: Between terminal 9 and terminal 10

• DTC C1205 is set: Between terminal 26 and terminal 16

• DTC C1210 is set: Between terminal 11 and terminal 17

• DTC C1215 is set: Between terminal 28 and terminal 27

Standard Value: 1.24

− 1.64 kΩ

Q: Is the resistance between terminals 16 and 26, 9 and 10,

27 and 28, or 11 and 17 within the standard value?
YES (When resistances between all terminals are within
the standard value) : Go to Step 16.
NO (When resistance between terminals 9 and 10 is not
within the standard value) : Go to Step 7.
NO (When resistance between terminals 16 and 26 is not
within the standard value) : Go to Step 9.
NO (When resistance between terminals 11 and 17 is not
within the standard value) : Go to Step 11.
NO (When resistance between terminals 27 and 28 is not
within the standard value) : Go to Step 13.

AC306403

19

2

18

1

8

9

7

6

5

4

3

10

11

25

15

16

17

27

28

26

12

13

14

23

24

22 21 20

AD

ABS-ECU

MB991970

CHECK CONNECTOR

A-02 HARNESS
CONNECTOR

A-02 (GR)

CONNECTOR: A-02

HYDRAULIC UNIT
(WITH BUILT-IN ABS-ECU)

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-17

STEP 7. Check ABS-ECU connector A-02 and wheel speed
sensor <front: RH> connector A-01 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are ABS-ECU connector A-02 and wheel speed sensor

<front: RH> connector A-01 damaged?
YES : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. Then go to Step 17.

NO : Go to Step 8.

AC306406

19

2

18

1

8

9

7

6

5

4

3

10

11

25

15

16

17

27

28

26

12

13

14

23

24

22 21 20

A-02 HARNESS CONNECTOR
(HARNESS SIDE)

AB

A-02 (GR)

CONNECTOR: A-02

HYDRAULIC UNIT
(WITH BUILT-IN ABS-ECU)

AC305206

A-01 (B)

CONNECTOR: A-01

AV

A-01 HARNESS
CONNECTOR
(HARNESS SIDE)

2 1

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-18

STEP 8. Check the harness wires between ABS-ECU
connector A-02 (terminal 9, 10) and wheel speed sensor
<front: RH> connector A-01 (terminal 2, 1).
Q: Is the harness wire between ABS-ECU connector A-02

(terminal 9, 10) and wheel speed sensor <front: RH>
connector A-01 (terminal 1, 2) damaged?
YES : Repair the wiring harness. Then go to Step 17.
NO : Go to Step 15.

AC306406

19

2

18

1

8

9

7

6

5

4

3

10

11

25

15

16

17

27

28

26

12

13

14

23

24

22 21 20

A-02 HARNESS CONNECTOR
(HARNESS SIDE)

AB

A-02 (GR)

CONNECTOR: A-02

HYDRAULIC UNIT
(WITH BUILT-IN ABS-ECU)

AC305206

A-01 (B)

CONNECTOR: A-01

AV

A-01 HARNESS
CONNECTOR
(HARNESS SIDE)

2 1

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-19

STEP 9. Check ABS-ECU connector A-02 and wheel speed
sensor <front: LH> connector A-04 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are ABS-ECU connector A-02 and wheel speed sensor

<front: LH> connector A-04 damaged?
YES : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. Then go to Step 17.

NO : Go to Step 10.

AC306406

19

2

18

1

8

9

7

6

5

4

3

10

11

25

15

16

17

27

28

26

12

13

14

23

24

22 21 20

A-02 HARNESS CONNECTOR
(HARNESS SIDE)

AB

A-02 (GR)

CONNECTOR: A-02

HYDRAULIC UNIT
(WITH BUILT-IN ABS-ECU)

AC305210AJ

A-04(B)

CONNECTOR: A-04

A-04 HARNESS
CONNECTOR
(HARNESS SIDE)

2 1