Mitsubishi Montero (2004+). Manual — part 1119
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-187
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 values between intermediate
connector E-123 terminal 2 and G and yaw rate sensor
connector E-126 terminal 2, and between intermediate
connector E-123 terminal 6 and G and yaw rate sensor
connector E-126 terminal 3.
• The resistance should measure 2 ohms or less.
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: Does the resistance measure 2 ohms or less?
YES : . Go to Step 3.
NO : . Repair the wiring harness wires between intermediate
connector E-123 and the G and yaw rate sensor
connector.
AC204582
HARNESS SIDE: E-124
AT
HARNESS SIDE: E-123
TEST
HARNESS
1
2
4 3
2
6
14
7
9 8
10
4
12
3
11
19
16
1817
15
1
5
13
TEST
HARNESS
AC204582
HARNESS SIDE: E-124
AU
HARNESS SIDE: E-123
TEST
HARNESS
1
2
4 3
2
6
14
7
9 8
10
4
12
3
11
19
16
1817
15
1
5
13
TEST
HARNESS
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-188
STEP 3. Check the wiring harness between intermediate
connector E-123 and the CAN main bus line.
NOTE: Also check the joint between the communication line
(connected to intermediate connector E-123) and the CAN
main bus line.
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 the wiring harness between intermediate connector
E-123 and the CAN main bus line in good condition?
YES : Diagnose the G and yaw rate sensor. Refer to
.
NO : Replace the control wiring harness assembly.
AC204176
CONNECTOR: E-123
AR
E-123(GR)
2
6
14
7
9 8
10
4
12
3
11
19
16
1817
15
1
5
13
E-123(GR)
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-189
SYMPTOM CHART
M1353001100030
SYMPTOM
INSPECTION
PROCEDURE NO.
REFERENCE PAGE
Communication between the scan tool and the M-ASTC
system is not possible.
-
GROUP 13A
−
Diagnosis
Communication with scan tool is not possible.
(Communication with Active skid control system only is not
possible.)
-
GROUP 35B
−
Diagnosis
The Active skid control system operation indicator light/Active
traction control system operation indicator light does not
illuminate when the ignition switch is on (but does not start the
engine).
1
The Active skid control system OFF indicator light does not
illuminate when the ignition switch is on (but does not start the
engine).
2
The Active skid control system operation indicator light/Active
traction control system operation indicator light does not go off
after the engine is started.
3
The Active skid control system OFF indicator light does not go
off after the engine is started.
4
M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-190
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: When the ignition switch is turned "ON" (Engine stopped or after
startup), the Active skid control system operation indicator light/Active traction control system
operation indicator light does not illuminate.
Active Skid Control System Operation Indicator Light/
Active Traction Control System Operation Indicator Light Circuit
AC204546 AB
CONNECTOR: D-03
D-03 (GR)
AC204547AC
CONNECTORS: D-208, D-210
D-208
D-210
JUNCTION BLOCK
(FRONT VIEW)
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