Mitsubishi 380. Manual - part 744

 

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Mitsubishi 380. Manual - part 744

 

 

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-387

STEP 2. Check the CAN bus lines between joint connector 
(3) and the ETACS-ECU. Measure the resistance between 
joint connector (3) C-02 and ETACS-ECU connector C-218.

CAUTION

A digital multimeter should be used. For details refer to 

P.54C-4

.

CAUTION

The test wiring harness should be used. For details refer to 

P.54C-4

.

(1) Disconnect joint connector (3) C-02 and ETACS-ECU 

connector C-218, and measure the resistances at the wiring 
harness sides of joint connector (3) C-02 and ETACS-ECU 
connector C-218.

(2) Turn the ignition switch to the "LOCK" (OFF) position.

CAUTION

Disconnect the negative battery terminal. For details refer 
to 

P.54C-4

.

(3) Disconnect the negative battery terminal.

16DB408A

CONNECTOR: C-02

16DB474A

C-218 (GR)

CONNECTOR: C-218

HARNESS SIDE

JUNCTION BLOCK

(REAR VIEW)

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-388

(4) Measure the resistance between joint connector (3) 

terminal 5 and ETACS-ECU connector terminal 66.

OK: 2 ohms or less

(5) Measure the resistance between joint connector (3) 

terminal 16 and ETACS-ECU connector terminal 67.

OK: 2 ohms or less

CAUTION

Strictly observe the specified wiring harness repair proce-
dure. For details refer to 

P.54C-5

.

Q: Do all the resistances measure 2 ohms or less?

YES : If all the resistances measure 2 ohms or less, power 

supply to the ETACS-ECU may be suspected. 
Diagnose the SWS. Refer to GROUP 54B, Symptom 
procedures 

P.54B-74

.

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 ETACS-ECU connector. 

16DB521A

11
22

10
21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

TEST 
HARNESS

TEST 
HARNESS

HARNESS SIDE: C-02

HARNESS SIDE: C-218

16DB520A

11
22

10
21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

TEST 
HARNESS

HARNESS SIDE: C-02

HARNESS SIDE: C-218

TEST 
HARNESS

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-389

DIAGNOSTIC ITEM 13: Diagnose the lines between CAN main bus line and the multi-center display  
[only for vehicles with multi-centre display]

NOTE: When diagnosing CAN-BUS on vehicles 
without a multi-centre display, disregard this 
diagnostic item completely.

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 the 
multi-center display unit , 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 multi-center display 
unit  may be defective.

.

TROUBLESHOOTING HINTS

• Refer to circuit diagrams GROUP-

90

• Refer to configuration diagrams GROUP-

80

• The wiring harness or connectors may have 

loose, corroded, or damage terminals, or termi-
nals pushed back in the connector

• The multi-center display unit  may be defective

16DB408A

CONNECTOR: C-02

16DB490A

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-390

DIAGNOSIS

Required Special Tool:

• MB991223: Harness Set

STEP 1. Check joint connector (3) C-02 and multi-center 
display unit  connector C-05 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 

P.54C-4

.

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 multi-center display 

unit  connector C-05 in good condition?
YES : 
Go to Step 2.
NO :  Repair the damaged parts. Replace the joint 

connector as necessary.

16DB408A

CONNECTOR: C-02

16DB490A

CONNECTOR: C-05

HARNESS SIDE

C-05 (B)

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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