Mitsubishi Montero (2004+). Manual — part 1097
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-99
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
AC204172
CONNECTOR: D-225
AH
AC204176
CONNECTORS: E-121, E-122, E-123
AQ
E-123(GR)
E-122(L)
E-121
AC204175
CONNECTOR: E-126
AD
E-126(GR)
FLOOR
CONSOLE
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-100
STEP 1. Check joint connector (9) D-131.
CAUTION
If there is a problem in the connector(s) (including termi-
nals) or wire(s) of the instrument panel wiring harness
assembly (the wiring harness connected to the steering
wheel sensor, the data link connector and the resistor) and
the transmission wiring harness assembly (the wiring har-
ness connected to the G and yaw rate sensor connector
and intermediate connector E-123), cut and repair the
defective wire so that the frayed end of the twisted wire
should be within 10 cm (4.0 inches). If it exceeds 10 cm (4.0
inches), twist the wiring harness just like the original
twisted wire. If the frayed end exceeds 10 cm (4.0 inches),
a communication error may be caused.
Q: Is joint connector D-131 in good condition?
YES : Go to Step 2.
NO : Repair or replace the connector(s).
AC204170
CONNECTOR: D-131
AT
6
1
9 8
2
7
10
12 11
4
5
3
AC203824
CONNECTOR
TWISTED WIRE
AB
10 cm
(4.0 inches)
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-101
STEP 2. Check the joint connector.
Disconnect joint connector (9), and check the short pin behind
the connector for corrosion, deformation and delamination.
Q: Is joint connector in good condition?
YES : Go to Step 3.
NO : Replace the joint connector.
AC204170
CONNECTOR: D-131
BV
AC204573
4 5
3
12
10
9
11
1 2
6 7 8
JOINT CONNECTOR (9) D-131
AB
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-102
STEP 3. Check intermediate connector E-122.
CAUTION
If there is a problem in the connector(s) (including termi-
nals) or wire(s) of the instrument panel wiring harness
assembly (the wiring harness connected to the steering
wheel sensor, the data link connector and the resistor) and
the transmission wiring harness assembly (the wiring har-
ness connected to the G and yaw rate sensor connector
and intermediate connector E-123), cut and repair the
defective wire so that the frayed end of the twisted wire
should be within 10 cm (4.0 inches). If it exceeds 10 cm (4.0
inches), twist the wiring harness just like the original
twisted wire. If the frayed end exceeds 10 cm (4.0 inches),
a communication error may be caused.
CAUTION
If there is a problem in the CAN bus line or the connectors
on the control wiring harness assembly (the wiring har-
ness connected to the M-ASTC-ECU, the power control
module and intermediate connector E-123), do not attempt
to repair the wiring harness or connector(s), but replace
the wiring harness assembly. If a wire is added or the con-
nector(s) are repaired, an error in the CAN communication
may be caused.
Q: Is intermediate connector E-122 in good condition?
YES : Go to Step 4.
NO (If there is a problem at the instrument panel wiring
harness assembly side) : Repair or replace the connector.
NO (If there is a problem at the control wiring harness
assembly side) : Replace the control wiring harness
assembly.
AC204176
CONNECTOR: E-122
E-122(L)
E-122(L)
AD
1
12
2
13
3
14
4
15
5
16
6
17
7
18
8
19
9
20
10
21
11
22
AC203824
CONNECTOR
TWISTED WIRE
AB
10 cm
(4.0 inches)
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