M-ASTC DIAGNOSIS
TSB Revision
MITSUBISHI ACTIVE SKID AND TRACTION CONTROL SYSTEM
35C-101
STEP 6. Measure the voltage in the CAN_H line. Measure
the voltage 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
voltage at joint connector (9).
(2) Turn the ignition switch to the "ON" position.
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.
(3) Measure the voltage between joint connector (9) D-131
terminal 7 and body ground.
• The voltage should measure one volt 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: Do the voltage measure one volt or less?
YES : Go to Step 7.
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
AC204580
HARNESS SIDE: D-131
AL
TEST
HARNESS
6
1
9 8
2
7
10
12 11
4
5
3