Mitsubishi 380. Manual — part 743
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-383
STEP 4. Check the CAN bus lines between intermediate
connector C-29 and the joint connector (3). Measure the
resistance between intermediate connector C-29 and 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 intermediate
connector C-29, and measure the resistance between the
wiring harness side connector of joint connector (3) C-02
and the female side connector of intermediate connector
C-29 (instrument panel 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.
16DB479A
CONNECTORS: C-02, C-29
C-02
C-02
C-29
C-29
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-384
(4) Measure the resistance between intermediate connector
terminal 12 and joint connector (3) terminal 20.
OK: 2 ohms or less
(5) Measure the resistance between intermediate connector
terminal 11 and joint connector (3) terminal 9.
OK: 2 ohms or less
CAUTION
Strictly observe the specified wiring harness repair proce-
dure. For details refer to
Q: Do all the resistances measure 2 ohms or less?
YES : If all the resistances measure 2 ohms or less, power
supply to the ABS-ECU may be suspected. Diagnose
the ABS system. Refer to GROUP 35B ABS
diagnosis
.
NO : If either of the resistances measures more than 2
ohms or all the resistances measure more than 2
ohms, repair the wiring harness between joint
connector (3) and intermediate connector C-29.
AC204582
35
34
36
30
38
29
17
13 12 11
37
31
33 32
26
27
28
16
14
15
3 2
4
18
6
7
21 20
5
19
9
10
24 23
25
8
22
1
TEST
HARNESS
FEMALE SIDE: C-29
HARNESS SIDE: C-02
TEST
HARNESS
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
CR
AC204582
35
34
36
30
38
29
17
13 12 11
37
31
33 32
26
27
28
16
14
15
3 2
4
18
6
7
21 20
5
19
9
10
24 23
25
8
22
1
TEST
HARNESS
FEMALE SIDE: C-29
HARNESS SIDE: C-02
TEST
HARNESS
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
CQ
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-385
DIAGNOSTIC ITEM 14: Failure in the lines between CAN main bus line and the ETACS-ECU.
CAUTION
When servicing a CAN bus line, ground yourself
by touching a metal object such as an unpainted
water pipe. If you fail to do so, a component con-
nected to the CAN bus line may be damaged.
.
TROUBLE JUDGMENT
If the MUT-III cannot received signals from
ETACS-ECU, CAN bus line connector(s) are broken
or an open circuit has occurred.
.
COMMENTS ON TROUBLE SYMPTOM
The wiring harness wire or connectors may have
loose, corroded, or damage terminals, or terminals
pushed back in the connector, or the ETACS-ECU
may be defective.
.
TROUBLESHOOTING HINTS
• Refer to circuit diagrams GROUP-
• Refer to configuration diagrams GROUP-
• The wiring harness or connectors may have
loose, corroded, or damage terminals, or termi-
nals pushed back in the connector
• The ETACS-ECU may be defective
16DB408A
CONNECTOR: C-02
16DB474A
C-218 (GR)
CONNECTOR: C-218
HARNESS SIDE
JUNCTION BLOCK
(REAR VIEW)
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-386
DIAGNOSIS
Required Special Tool:
• MB991223: Harness Set
STEP 1. Check joint connector (3) C-02 and ETACS-ECU
connector C-218 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: Are joint connector (3) C-02 and ETACS-ECU connector
C-218 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts. Replace the joint
connector as necessary.
16DB408A
CONNECTOR: C-02
16DB474A
C-218 (GR)
CONNECTOR: C-218
HARNESS SIDE
JUNCTION BLOCK
(REAR VIEW)
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
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