Mitsubishi 380. Manual — part 730
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-331
STEP 7. Check the CAN bus lines between joint connector
(3) and the combination meter. Measure the resistance
between joint connector (3) C-02 and combination meter
connector C-101.
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 between
each wiring harness side connector.
(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.
16DB476A
HARNESS SIDE
C-101
CONNECTORS: C-02, C-101
C-02
C-02
C-101
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-332
(4) Measure the resistance between joint connector (3)
terminal 15 and combination meter connector terminal 15.
OK: 2 ohms or less
(5) Measure the resistance between joint connector (3)
terminal 4 and combination meter 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, power
supply to the combination meter may be suspected.
Diagnose the combination meter by referring to
GROUP 54A, Combination meter assembly
.
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 the combination meter connector.
AC204582
HARNESS SIDE: C-02
BZ
11
22
10
21
9
20
8
19
7
18
6
17
5
16
4
15
3
14
2
13
1
12
G
G
22
11
5
16
19
20
21
17
18
8
10 9
7 6
13
1514
12
2
4 3
1
TEST
HARNESS
HARNESS SIDE: C-101
TEST
HARNESS
AC204582
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
G
G
22
11
5
16
19
20
21
17
18
8
10 9
7 6
13
1514
12
2
4 3
1
TEST
HARNESS
HARNESS SIDE: C-101
CA
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-333
STEP 8. Check ETACS-ECU connector C-218 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
• Refer to circuit diagrams GROUP-
• Refer to configuration diagrams GROUP-
CAUTION
The strand end of the twisted wire should be within 10 cm
(4 inches) from the connector. For details refer to
Q: Is ETACS-ECU connector C-218 in good condition?
YES : Go to Step 9.
NO : Repair the damaged parts.
STEP 9. Using diagnostic tool MB991958, diagnose the
CAN bus line (Disconnect ETACS-ECU connector C-218,
and check the ETACS-ECU system).
(1) Disconnect ETACS-ECU connector C-218.
(2) Turn the ignition switch to the "ON" position.
16DB474A
C-218 (GR)
CONNECTOR: C-218
HARNESS SIDE
JUNCTION BLOCK
(REAR VIEW)
16DB474A
C-218 (GR)
CONNECTOR: C-218
HARNESS SIDE
JUNCTION BLOCK
(REAR VIEW)
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54C-334
(3) Diagnose CAN bus lines, and check if the MUT-III screen is
as shown in the illustration.
NOTE: When diagnosing CAN-BUS on vehi-
cles with manual transmission (M/T), disregard
A/T-ECU and it’s wiring circuits and measure
between ABS-ECU and ENGINE-ECU only.
NOTE: When diagnosing CAN-BUS on vehicles
not equipped with a multi-centre display, disre-
gard the multi-centre display and it’s wiring cir-
cuits.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Connect ETACS-ECU connector C-218.
Q: Does the MUT-III screen correspond to the illustration?
YES : If the MUT-III screen corresponds to the illustration,
go to Step 10 .
NO : If the MUT-III screen does not correspond to the
illustration, go to Step 11.
16DB595A
: Red section on screen
ETACS
-ECU
AC-ECU
SRS-ECU
C.DISPLAY
MUT
J/C
METER
-ECU
ENGINE
ECU
ABS-ECU
A/T-ECU
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