Mitsubishi 380. Manual — part 669
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-87
(3) Measure the voltage between data link connector terminal
14 and body ground.
OK: 4.0 V or less
Q: Does the voltage measure 4.0 V or less?
YES : If the voltage measures 4.0 V or less, diagnose CAN
bus lines thoroughly by referring to
NO : If the voltage measures more than 4.0 V, go to Step
27.
STEP 4. Check intermediate connector C-29 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
CAUTION
The strand end of the twisted wire should be within 10 cm
(4 inches) from the connector. For details refer to
Q: Is intermediate connector C-29 in good condition?
YES : Go to Step 5.
NO : Repair the damaged parts.
AC209365
HARNESS SIDE: C-125
FO
TEST
HARNESS
Y
8
16
15
7
5
1314
6
12
4
2
1011
3
9
1
52DB014A
CONNECTOR: C-29
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-88
STEP 5. Check the CAN_H-side bus line (communication
line including ECUs) of the front wiring harness for a short
to the power supply. Measure the voltage at intermediate
connector C-29.
CAUTION
A digital multimeter should be used. For details refer to
CAUTION
The test wiring harness should be used. For details refer to
(1) Disconnect intermediate connector C-29, and measure the
voltage at the male side (at front wiring harness side).
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between intermediate connector
terminal 11 and body ground.
OK: 4.0 V or less
Q: Does the voltage measure 4.0 V or less?
YES : If the voltage measures 4.0 V or less, go to Step 6.
NO : If the voltage measures more than 4.0 V, go to Step
23.
52DB014A
CONNECTOR: C-29
AC209365
2 3
27
32
28
33
16
15
4 5
19
18
29
17
34
7 8
35
22
21
9 10
30
36
31
37
25
24
23
6
20
1
14
26
11
13
12
38
AC209365
MALE SIDE: C-29
TEST
HARNESS
FP
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-89
STEP 6. Check joint connector (3) C-02 for loose, corroded
or damaged terminals, or terminals pushed back in the
connector.
CAUTION
The strand end of the twisted wire should be within 10 cm
(4 inches) from the connector. For details refer to
Check the joint connector at the wiring harness side for loose,
corroded or damaged terminals, or terminals pushed back in
the connector, and also check the short pin behind the connec-
tor for corrosion, deformation and delamination.
Q: Is joint connector (3) C-02 in good condition?
YES : Go to Step 7.
NO : Repair the damaged parts. Replace the joint
connector as necessary.
16DB408A
CONNECTOR: C-02
AC209350
1
12
2
13
3
14
4
15
5
16
6
17
7
18
8
19
9
20
10
21
11
22
AB
SHORT PIN
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-90
STEP 7. Check the CAN_H line (communication line
including the combination meter) between joint connector
(3) and the combination meter for a short to the power
supply. Measure the voltage at joint connector (3) C-02.
CAUTION
A digital multimeter should be used. For details refer to
CAUTION
The test wiring harness should be used. For details refer to
(1) Disconnect joint connector (3) C-02, and measure the
voltage at the wiring harness side of joint connector (3)
C-02.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between joint connector (3) terminal 4
and body ground.
OK: 4.0 V or less
Q: Does the voltage measure 4.0 V or less?
YES : If the voltage measures 4.0 V or less, go to Step 9.
NO : If the voltage measures more than 4.0 V, go to Step 8.
16DB408A
CONNECTOR: C-02
AC209365
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
AC209365FQ
HARNESS SIDE: C-02
TEST
HARNESS
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