Mitsubishi Montero Sport (2004+). Manual — part 811
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS) <4WD>
35C-51
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Communication with Scan Tool is not Possible. (Communication with
ABS Only is not Possible.)
Data Link Connector Circuit
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS) <4WD>
35C-52
.
CIRCUIT OPERATION
• The diagnostic output is made from the
ABS-ECU (terminal 23) to the diagnostic output
terminal (terminal 7) of the data link connector.
• When the data link connector's diagnostic test
mode control terminal (terminal 1) is grounded,
the ABS-ECU (terminal 24) will go into diagnostic
mode.
.
TECHNICAL DESCRIPTION (COMMENT)
When communication with the scan tool is not possi-
ble, the cause is probably an open circuit in the
ABS-ECU power circuit or an open circuit in the diag-
nostic output circuit.
.
TROUBLESHOOTING HINTS (The most likely
causes for this case:)
• Blown fuse
• Damaged wiring harness or connector
• Malfunction of the hydraulic unit (integrated with
AS-ECU)
.
AC004837
CONNECTORS: A-85, A-86
AI
A-86 (GR)
A-85 (B)
AC004265
CONNECTOR: C-69
AJ
C-69 (B)
AC004261
CONNECTORS: C-10, C-11, C-17
AL
C-17
C-11
C-10
AC003457
D-13
D-08
CONNECTORS: D-08, D-13
AC
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS) <4WD>
35C-53
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• 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. Measure the power supply circuit at ABS-ECU
connector A-85.
(1) Disconnect connector A-85 and measure at the harness
side.
(2) Start the engine.
(3) Measure the voltage between terminal 9 and ground.
Q: Is battery positive voltage (approximately 12 volts)
present?
YES : Go to Step 3.
NO : Go to Step 2.
STEP 2. Check the harness wire between ignition switch
(IG2) 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
2 1
18
10
3
4
20
21
13 12
19
11
6
7
24 23
14
15
8
9
25
26
17 16
22
5
AC202680AB
A-85 HARNESS CONNECTOR:
COMPONENT SIDE
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
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS) <4WD>
35C-54
NOTE: After inspecting intermediate connectors C-17, C-11,
D-08, and D-13, inspect the wire. If intermediate connector
C-17, C-11, D-08, or D-13 is damaged, repair or replace it.
Refer to GROUP 00E, Harness Connector Inspection
If the connector has been repaired or replaced, go to Step 3.
Q: Is any harness wire between ignition switch (IG2) and
ABS-ECU connector A-85 (terminal No.9) damaged?
YES : Repair them and go to Step 5.
NO : Go to Step 3.
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
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
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