Mitsubishi Galant (2004+). Manual - part 520

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-25

STEP 12. Check the harness wires between ABS-ECU 
connector A-02 (terminal 11, 17) and wheel speed sensor 
<rear: RH> connector F-04 (terminal 1, 2).

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

(terminal 11, 17) and wheel speed sensor <rear: RH> 
connector F-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)

AC305260

F-04

CONNECTOR: F-04

AF

F-04 HARNESS
CONNECTOR
(HARNESS SIDE)

1 2

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-26

STEP 13. Check ABS-ECU connector A-02, intermediate 
connector C-25 and wheel speed sensor <rear: LH> 
connector F-07 for loose, corroded or damaged terminals, 
or terminals pushed back in the connector.

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

C-32 and wheel speed sensor <rear: LH> connector F-07 
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 14.

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)

AC305231BM

CONNECTOR: C-25

C-25

11

1

4

3

10
16

13

12

5 6

2

14

8

15

9

7

AC305260

CONNECTOR: F-07

AG

F-07 HARNESS
CONNECTOR
(HARNESS SIDE)

1 2

F-07

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-27

STEP 14. Check the harness wires between ABS-ECU 
connector A-02 (terminal 28, 27) and wheel speed sensor 
<rear: LH> connector F-07 (terminal 1, 2).

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

terminal 28, 27) and wheel speed sensor <rear: LH> 
connector F-07 (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)

AC305260

CONNECTOR: F-07

AG

F-07 HARNESS
CONNECTOR
(HARNESS SIDE)

1 2

F-07

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-28

STEP 15. Inspect the wheel speed sensor.

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

P.35B-113

.

• 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 

17.

NO :  Go to Step 4.

STEP 16. Recheck for diagnostic trouble code.

Check again if the DTC is set.
(1) Turn the ignition switch to the "ON" position.
(2) Erase the DTC.

(3) Turn the ignition switch to the "LOCK" (OFF) position.
(4) Turn the ignition switch to the "ON" position.
(5) Check if the DTC is reset.
(6) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1200, C1205, C1210 or C1215 set?

YES : Replace the hydraulic unit (integrated with 

ABS-ECU). Then go to Step 17.

NO :  It can be assumed that this malfunction is intermittent. 

Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points 

− How to 

Cope with Intermittent Malfunction 

P.00-6

.

AC305412

AB

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827