Mitsubishi Galant (2004+). Manual - part 519

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-21

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-22

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

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-23

STEP 10. Check the harness wires between ABS-ECU 
connector A-02 (terminal 16, 26) and wheel speed sensor 
<front: LH> connector A-04 (terminal 1, 2).

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

(terminal 16, 26) and wheel speed sensor <front: LH> 
connector A-04 (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)

AC305210AJ

A-04(B)

CONNECTOR: A-04

A-04 HARNESS
CONNECTOR
(HARNESS SIDE)

2 1

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-24

STEP 11. Check ABS-ECU connector A-02, intermediate 
connector C-25 and wheel speed sensor <rear: RH> 
connector F-04 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 
F-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 12.

AC207192

AC211230

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(GR)

CONNECTOR: A-02

HYDRAULIC UNIT
(WITH BUILT-IN ABS-ECU)

A-02 HARNESS CONNECTOR
(HARNESS SIDE)

AB

AC305231BM

CONNECTOR: C-25

C-25

11

1

4

3

10
16

13

12

5 6

2

14

8

15

9

7

AC305260

F-04

CONNECTOR: F-04

AF

F-04 HARNESS
CONNECTOR
(HARNESS SIDE)

1 2