Mitsubishi 380. Manual — part 688
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-162
STEP 27. Check the CAN_L-side bus line (communication
line including ECUs) of the front wiring harness for short
to ground. Measure the resistance 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
resistance at the male side (at front wiring harness side).
(2) Turn the ignition switch to the "LOCK" (OFF) position.
CAUTION
Disconnect the negative battery terminal. For details refer
to
.
(3) Disconnect the negative battery terminal.
(4) Measure the resistance between intermediate connector
terminal 12 and body ground.
OK: 1 k
Ω or more
Q: Does the resistance measure 1 k
Ω or more?
YES : If the resistance measures 1 k
Ω or more, go to Step
28 .
NO : If the resistance measures less than 1 k
Ω, go to Step
42.
52DB014A
CONNECTOR: C-29
AC209364
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
MALE SIDE: C-29
TEST HARNESS
GA
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-163
STEP 28. 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 29.
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-164
STEP 29. Check the CAN_L line (communication line
including the combination meter) between joint connector
(3) and the combination meter connector for short to
ground. Measure the resistance 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
resistance at the wiring harness side of joint connector (3)
C-02.
(2) Turn the ignition switch to the "LOCK" (OFF) position.
CAUTION
Disconnect the negative battery terminal. For details refer
to
.
(3) Disconnect the negative battery terminal.
(4) Measure the resistance between joint connector (3)
terminal 15 and body ground.
OK: 1 k
Ω or more
Q: Does the resistance measure 1 k
Ω or more?
YES : If the resistance measures 1 k
Ω or more, go to Step
31 .
NO : If the resistance measures less than 1 k
Ω, go to Step
30.
16DB408A
CONNECTOR: C-02
AC209364IG
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
HARNESS SIDE: C-02
TEST
HARNESS
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-165
STEP 30. Check the CAN_L line (communication line only)
between joint connector (3) and the combination meter
connector for short to ground. Measure the resistance 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 combination meter
connector C-101, and measure the resistance at the wiring
harness side of joint connector (3) C-02.
(2) Turn the ignition switch to the "LOCK" (OFF) position.
CAUTION
Disconnect the negative battery terminal. For details refer
to
.
(3) Disconnect the negative battery terminal.
(4) Measure the resistance between joint connector (3)
terminal 15 and body ground.
OK: 1 k
Ω or more
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
Q: Does the resistance measure 1 k
Ω or more?
YES : If the resistance measures 1 k
Ω or more, diagnose
CAN bus lines thoroughly by referring to
NO : If the resistance measures less than 1 k
Ω, repair the
wiring harness between joint connector (3) and the
combination meter connector.
16DB476A
HARNESS SIDE
C-101
CONNECTORS: C-02, C-101
C-02
C-02
C-101
AC209364IG
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
HARNESS SIDE: C-02
TEST
HARNESS
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