Mitsubishi 380. Manual - part 702

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-218

STEP 33. 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 

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 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 

P.54C-4

.

(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 

P.54C-5

.

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 

P.54C-323

.

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

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22

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21

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20

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19

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18

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17

5

16

4

15

3

14

2

13

1

12

HARNESS SIDE: C-02

TEST 
HARNESS

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-219

STEP 34. Check the CAN_L line (communication line 
including the ETACS-ECU) between joint connector (3) and 
the ETACS-ECU 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 

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 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 

P.54C-4

.

(3) Disconnect the negative battery terminal.

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

terminal 16 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 

37   .

NO :  If the resistance measures less than 1 k

Ω, go to Step 

35.

STEP 35. Check 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 

P.54C-4

.

Q: Is ETACS-ECU connector C-218 in good condition?

YES : Go to Step 36.
NO :  Repair the damaged parts.

16DB408A

CONNECTOR: C-02

AC209364II

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22

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21

9

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8

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7

18

6

17

5

16

4

15

3

14

2

13

1

12

HARNESS SIDE: C-02

TEST 
HARNESS

16DB474A

C-218 (GR)

CONNECTOR: C-218

HARNESS SIDE

JUNCTION BLOCK

(REAR VIEW)

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-220

STEP 36. Check the CAN_L line (communication line only) 
between joint connector (3) and ETACS-ECU 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 

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 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 

P.54C-4

.

(3) Disconnect the negative battery terminal.

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

terminal 16 and body ground.

OK: 1 k

Ω or more

CAUTION

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

P.54C-5

.

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 

P.54C-323

.

NO :  If the resistance measures less than 1 k

Ω, repair the 

wiring harness between joint connector (3) and the 
ETACS-ECU connector.

16DB408A

CONNECTOR: C-02

16DB474A

C-218 (GR)

CONNECTOR: C-218

HARNESS SIDE

JUNCTION BLOCK

(REAR VIEW)

AC209364II

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-221

STEP 37. Check the CAN_L line (communication line 
including the A/C-ECU) between joint connector (3) and 
the A/C-ECU 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 

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 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 

P.54C-4

.

(3) Disconnect the negative battery terminal.

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

terminal 17 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 

40   .

NO :  If the resistance measures less than 1 k

Ω, go to Step 

38.

16DB408A

CONNECTOR: C-02

AC209364

11
22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

AC209364

AC209364HY

HARNESS SIDE: C-02

TEST 
HARNESS