Mitsubishi Montero (2004+). Manual — part 1100
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-111
STEP 11. Check the resistance in the CAN_H line. Measure
at joint connector (9) D-131.
CAUTION
Before checking CAN bus lines and their interconnected
components, "ground" yourself, by touching a metal
object such as an unpainted pipe, this will discharge any
potentially damaging static that may have built up.
CAUTION
When measuring resistance value or voltage in CAN bus
lines, use a digital multimeter. If not using a digital multim-
eter, the equipments, which are connected through the
CAN communication lines, may be damaged.
(1) Disconnect joint connector (9) D-131, and measure the
resistance between joint connector (9) and body ground.
(2) Turn the ignition switch to the LOCK (OFF) position.
CAUTION
Disconnect the negative battery terminal when measuring
the resistance value in the CAN bus line. If you fail to do
so, the equipments, which are connected through the CAN
communication lines, may be damaged.
(3) Disconnect the negative battery terminal.
CAUTION
Always use the test harness when measuring the voltage
or resistance value at the female connector. If you fail to do
so, connectors may be damaged.
(4) Measure the resistance between joint connector (9) D-131
terminal 7 and body ground.
• The resistance should be infinite.
CAUTION
If you repair the CAN bus line of the instrument panel wir-
ing 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 harness connected to the G and yaw rate sen-
sor connector and intermediate connector E-123), observe
the precautions regarding how to repair wiring harness. If
a new wire is added or a splice point is modified for the
CAN_L or CAN_H line, an error in the CAN communication
may be caused.
Q: Is the resistance infinite?
YES : Go to Step 12.
NO : Repair the wiring harness wires between joint
connector (9) and the data link connector.
AC204170
CONNECTOR: D-131
AT
6
1
9 8
2
7
10
12 11
4
5
3
AC204581
HARNESS SIDE: D-131
AQ
TEST
HARNESS
6
1
9 8
2
7
10
12 11
4
5
3
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-112
STEP 12. Check the resistance in the CAN_H line. Measure
at joint connector (9) D-131.
CAUTION
Before checking CAN bus lines and their interconnected
components, "ground" yourself, by touching a metal
object such as an unpainted pipe, this will discharge any
potentially damaging static that may have built up.
CAUTION
When measuring resistance value or voltage in CAN bus
lines, use a digital multimeter. If not using a digital multim-
eter, the equipments, which are connected through the
CAN communication lines, may be damaged.
(1) Disconnect joint connector (9) D-131 and resistor connector
D-130, and measure the resistance between joint connector
(9) and body ground.
(2) Turn the ignition switch to the LOCK (OFF) position.
CAUTION
Disconnect the negative battery terminal when measuring
the resistance value in the CAN bus line. If you fail to do
so, the equipments, which are connected through the CAN
communication lines, may be damaged.
(3) Disconnect the negative battery terminal.
CAUTION
Always use the test harness when measuring the voltage
or resistance value at the female connector. If you fail to do
so, connectors may be damaged.
(4) Measure the resistance between joint connector (9) D-131
terminal 1 and body ground.
• The resistance should be infinite.
CAUTION
If you repair the CAN bus line of the instrument panel wir-
ing 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 harness connected to the G and yaw rate sen-
sor connector and intermediate connector E-123), observe
the precautions regarding how to repair wiring harness. If
a new wire is added or a splice point is modified for the
CAN_L or CAN_H line, an error in the CAN communication
may be caused.
Q: Is the resistance infinite?
AC204188
CONNECTORS: D-130, D-131
D-131
AQ
HARNESS SIDE
HARNESS SIDE
D-131
D-130
D-130
6
1
9 8
2
7
10
12 11
4
5
3
1
2
AC204581
HARNESS SIDE: D-131
AL
TEST
HARNESS
6
1
9 8
2
7
10
12 11
4
5
3
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-113
YES : Go to Step 13.
NO : Repair the wiring harness wires between joint
connector (9) and the resistor connector.
STEP 13. Check the resistance in the CAN_H line. Measure
at joint connector (9) D-131.
CAUTION
Before checking CAN bus lines and their interconnected
components, "ground" yourself, by touching a metal
object such as an unpainted pipe, this will discharge any
potentially damaging static that may have built up.
CAUTION
When measuring resistance value or voltage in CAN bus
lines, use a digital multimeter. If not using a digital
multimeter, the equipments, which are connected through
the CAN communication lines, may be damaged.
(1) Disconnect joint connector (9) D-131 and steering wheel
sensor connector D-225, and measure the resistance
between joint connector (9) and body ground.
(2) Turn the ignition switch to the LOCK (OFF) position.
CAUTION
Disconnect the negative battery terminal when measuring
the resistance value in the CAN bus line. If you fail to do
so, the equipments, which are connected through the CAN
communication lines, may be damaged.
(3) Disconnect the negative battery terminal.
CAUTION
Always use the test harness when measuring the voltage
or resistance value at the female connector. If you fail to do
so, connectors may be damaged.
(4) Measure the resistance between joint connector (9) D-131
terminal 2 and body ground.
• The resistance should be infinite.
AC204170
CONNECTOR: D-131
AT
6
1
9 8
2
7
10
12 11
4
5
3
AC204172
CONNECTOR: D-225
HARNESS SIDE
AD
3 2
1
4
5
AC204581
HARNESS SIDE: D-131
AM
TEST
HARNESS
6
1
9 8
2
7
10
12 11
4
5
3
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-114
CAUTION
If you repair the CAN bus line of the instrument panel wir-
ing 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 harness connected to the G and yaw rate sen-
sor connector and intermediate connector E-123), observe
the precautions regarding how to repair wiring harness. If
a new wire is added or a splice point is modified for the
CAN_L or CAN_H line, an error in the CAN communication
may be caused.
Q: Is the resistance infinite?
YES : Go to Step 14.
NO : Repair the wiring harness wires between joint
connector (9) and the steering wheel sensor
connector.
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