Mitsubishi Lancer Evolution IX. Manual — part 510

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-71

STEP 5. Check the following harness wire.

The wire between lateral G-sensor connector D-37
(terminal 1) and junction block connector C-211 (ter-
minal 2)

Q: Is the harness wire damaged?

YES :

Repair or replace it and then go to Step 11.

NO :

Go to Step 11.

STEP 6. Check the following connectors.

•

Lateral G-sensor connector D-37

•

Intermediate connector C-122

•

ABS-ECU connector B-118
Check the connectors for loose, corroded or dam-
aged terminals, or terminals pushed back in the con-
nector.

Q: Are the connectors and terminals in good

condition?
YES :

Go to Step 7.

NO :

Repair it and then go to Step 11.

AC311167AC

Connector: D-37

D-37 (B)

Harness side

3

1

2

AC311165

Connector: C-211

AB

Junction block
(Front view)

Harness side

4

6 5

3

2

1

AC311167AC

Connector: D-37

D-37 (B)

Harness side

3

1

2

AC311160AC

Connector: C-122

C-122 (L)

2

1

3

13

12

14

21

10

5

4

6

16

15

17

7 8 9

19

18

20

11

22

AC311127AB

B-118 (B)

Connector: B-118

28

32

34

12

11

33

30

21

9

10

22

31

7

8

29

20 19

24

2

26

4

5

6

27

18 17

3

25

16 15

1

23

13

14

Harness side

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-72

STEP 7. Check the following harness wire.

The wire between lateral G-sensor connector D-37
(terminal 3) and ABS-ECU connector B-118 (terminal
24)

Q: Is the harness wire damaged?

YES :

Repair or replace it and then go to Step 11.

NO :

Go to Step 11.

STEP 8. Check lateral G-sensor output voltage.

(1) Disconnect connector D-37, and then connect

special tool harness set (MB991348) between
terminals of the disconnected connectors.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 2 and

earth.

OK:

When the lateral G-sensor is placed on a

level plane: 2.4

− 2.6 volts

When the lateral G-sensor is placed with its

label positioned as shown: 3.4

− 3.6 volts

Q: Is the lateral G-sensor output voltage normal?

YES :

Go to Step 9.

NO :

Replace the lateral G-sensor (Refer to

P.35B-148

). Then go to Step 11.

AC311167AC

Connector: D-37

D-37 (B)

Harness side

3

1

2

AC311127AB

B-118 (B)

Connector: B-118

28

32

34

12

11

33

30

21

9

10

22

31

7

8

29

20 19

24

2

26

4

5

6

27

18 17

3

25

16 15

1

23

13

14

Harness side

AC103662AP

MB991348

Connector: D-37 (Harness side)

Label

Label

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-73

STEP 9. Check the following connectors.

•

Lateral G-sensor connector D-37

•

Intermediate connector C-122

•

ABS-ECU connector B-118
Check the connectors for loose, corroded or dam-
aged terminals, or terminals pushed back in the con-
nector.

Q: Are the connectors and terminals in good

condition?
YES :

Go to Step 10.

NO :

Repair it and then go to Step 11.

STEP 10. Check the following harness wire.

The wire between lateral G-sensor connector D-37
(terminal 2) and ABS-ECU connector B-118 (terminal
14)

Q: Is the harness wire damaged?

YES :

Repair or replace it and then go to Step 11.

NO :

Replace the brake modulator hydraulic unit
(integrated with ABS-ECU) (Refer to

P.35B-143

). Then go to Step 11.

AC311167AC

Connector: D-37

D-37 (B)

Harness side

3

1

2

AC311160AC

Connector: C-122

C-122 (L)

2

1

3

13

12

14

21

10

5

4

6

16

15

17

7 8 9

19

18

20

11

22

AC311127AB

B-118 (B)

Connector: B-118

28

32

34

12

11

33

30

21

9

10

22

31

7

8

29

20 19

24

2

26

4

5

6

27

18 17

3

25

16 15

1

23

13

14

Harness side

AC311167AC

Connector: D-37

D-37 (B)

Harness side

3

1

2

AC311127AB

B-118 (B)

Connector: B-118

28

32

34

12

11

33

30

21

9

10

22

31

7

8

29

20 19

24

2

26

4

5

6

27

18 17

3

25

16 15

1

23

13

14

Harness side

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-74

STEP 11. Check whether the diagnosis code is
reset.

Check again if the diagnosis code is set.
(1) Turn the ignition switch to the "ON" position.

(2) Erase the diagnosis code.
(3) Turn the ignition switch to the "LOCK" (OFF)

position.

(4) Turn the ignition switch to the "ON" position.
(5) Check if the diagnosis code is set.
(6) Turn the ignition switch to the "LOCK" (OFF)

position.

Q: Does diagnosis code No.71 reset?

YES :

Start over at Step 1.

NO :

The procedure is complete.

AC311157

Steering shaft

AB

MB991502

<Using the M.U.T.-II>

AC311153

AB

MB991911

16-PIN

MB991827

MB991824

<Using the M.U.T.-III>