Mitsubishi Montero Sport (2004+). Manual — part 805

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS) <4WD>

35C-27

STEP 3. Check the harness wires between connector D-08
(terminal No.2) and ABS-ECU connector A-85 (terminal
No.9).

AC201944

CONNECTOR : A-85

A-85(B)

A-85 HARNESS
CONNECTOR:
COMPONENT SIDE

AD

18

12 11

20 19

10

3 2 1

13

14

22

23

17 16

25 24

15

8 7 6 5 4

21

9

26

AC201961

CONNECTORS : D-08, D-13

D-08

D-08 HARNESS CONNECTOR:
COMPONENT SIDE

AB

D-13

M

3

1

4

2

9

20

8

19

7

18

6

1716 15

5

14

4

13

3

12

2

11

1

10

D-13 HARNESS CONNECTOR:
COMPONENT SIDE

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS) <4WD>

35C-28

NOTE: After inspecting intermediate connectors D-13, C-11,
and C-17, inspect the wire. If intermediate connector D-13,
C-11 or C-17 is damaged, repair or replace it. Refer to GROUP
00E, Harness Connector Inspection

P.00E-2

. If the connector

has been repaired or replaced, go to Step 4.
Q: Are any harness wires between ABS-ECU connector

D-08 (terminal No.2) and ABS-ECU connector A-85
(terminal No.9) damaged?
YES : Repair them and go to Step 4.
NO : Go to Step 4.

STEP 4. Recheck for diagnostic trouble code.

Q: Does diagnostic trouble code 16 reset?

YES : Start over at Step 1.
NO : The procedure is complete.

AC201960

CONNECTORS : C-11, C-17

C-17

C-11

C-17

AB

C-11

17

7

15

5

16

6

12 13

10

3

11

14

4

8

1

9

2

8

19

7

6

5

16

15

17 18

4

3

2

10 11 12 13

1
9

14

AK303629AB

MB991911

MB991827

MB991824

16-PIN

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS) <4WD>

35C-29

DTC 25: 2/4WD Switch 1
DTC 26: 2/4WD Switch 2

.

CIRCUIT OPERATION

• The ABS-ECU is designed to be adaptable to

vehicles equipped with the part time 4WD sys-
tem. ABS-ECU terminal 12 is not connected to
4WD detection switch but grounded to establish
the same condition as the 4WD detection switch
turned to ON. The ABS-ECU monitors the center
differential lock detection switch condition
through terminal 11.

.

ABS DTC SET CONDITIONS
If the ground circuit from ABS-ECU terminal 12 is
open, DTC 25 will be set. If the circuit between the
4WD indicator-ECU and ABS-ECU terminal 11 is
open, DTC 26 will be set. If the ground circuit from
ABS-ECU terminal 12 shorts in the power supply,
DTC 25 and 26 will be set simultaneously.

.

JOINT
CONNECTOR (5)

ABS-ECU

4WD
INDICATOR-
ECU

CENTER
DIFFERENTIAL
LOCK
DETECTION
SWITCH

Center Differential Lock Detection Switch Input Circuit

AC004837

CONNECTOR: A-85

AH

A-85 (B)

AC309496

CONNECTORS: C-14, C-17, C-58

AB

C-17

C-14

C-58

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS) <4WD>

35C-30

TROUBLESHOOTING HINTS

• Damaged wiring harness or connector

• Malfunction of hydraulic unit (integrated with

ABS-ECU)

.

DIAGNOSIS

Required Special Tool:

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: MUT-III USB Cable

• MB991911: MUT-III Main Harness B

STEP 1. Using scan tool MB991958, read the diagnostic
trouble code.

Q: Are diagnostic trouble codes 25 and 26 set

simultaneously?
YES : Go to Step 2.
NO <Only diagnostic trouble codes 25 is set> : Go to

Step 2.

NO <Only diagnostic trouble codes 25 is set> : Go to

Step 4.

AK303629AB

MB991911

MB991827

MB991824

16-PIN