Mitsubishi 380. Manual — part 742
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-379
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB991219: Inspection Test Harness
STEP 1. Check intermediate connector C-29 and ABS-ECU
connector A-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
Q: Are intermediate connector C-29 and ABS-ECU
connector A-02 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts. Replace the joint
connector as necessary.
16DB402A
A-02 (GR)
CONNECTOR: A-02
A-02 HARNESS CONNECTOR:
52DB014A
CONNECTOR: C-29
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-380
STEP 2. Check the CAN bus lines between intermediate
connector C-29 and the ABS-ECU. Measure the resistance
between intermediate connector C-29 and ABS-ECU
connector A-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 intermediate connector C-29 and ABS-ECU
connector A-02, and measure the resistance between the
wiring harness side connector of ABS-ECU connector A-02
(using MB991219) and the male side connector of
intermediate connector C-29 (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.
16DB402A
A-02 (GR)
CONNECTOR: A-02
A-02 HARNESS CONNECTOR:
52DB014A
CONNECTOR: C-29
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-381
(4) Measure the resistance between intermediate connector
terminal 11 and ABS-ECU connector terminal 25.
OK: 2 ohms or less
(5) Measure the resistance between intermediate connector
terminal 12 and ABS-ECU connector terminal 14.
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, go to
Step 3.
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 intermediate
connector C-29 and the ABS-ECU connector.
16DB513A
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
TEST
HARNESS
TEST
HARNESS
HARNESS SIDE: A-02
MALE SIDE: C-29
16DB514A
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
TEST
HARNESS
TEST
HARNESS
HARNESS SIDE: A-02
MALE SIDE: C-29
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-382
STEP 3. 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 4.
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
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