Mitsubishi Galant (2004+). Manual - part 397

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-199

STEP 27. Check the CAN_L line (communication line 
including the combination meter) 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 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

Q: Does the resistance measure 1 k

Ω or more?

YES : If the resistance measures 1 k

Ω or more, go to Step 

29   .

NO :  If the resistance measures less than 1 k

Ω, go to Step 

28 .

AC305231AP

CONNECTOR: C-02

AC209364IG

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16

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15

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14

2

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1

12

HARNESS SIDE: C-02

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-200

STEP 28. 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-465

.

NO :  If the resistance measures less than 1 k

Ω, repair the 

wiring harness between joint connector (3) and the 
combination meter connector.

AC305232

HARNESS SIDE

C-101

CONNECTORS: C-02, C-101

AE

C-02

C-02

C-101

AC209364IG

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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

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-201

STEP 29. 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 

32   .

NO :  If the resistance measures less than 1 k

Ω, go to Step 

30 .

STEP 30. 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 31.
NO :  Repair the damaged parts.

AC305231AP

CONNECTOR: C-02

AC209364II

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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

AC305413

C-218 (GR)

CONNECTOR: C-218

AI

HARNESS SIDE

JUNCTION BLOCK
(REAR VIEW)

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74

63

66

72

73

67

65 64

61

70

71

62

69

60

57

58

59

56 55

52

54 53

51

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-202

STEP 31. 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-465

.

NO :  If the resistance measures less than 1 k

Ω, repair the 

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

AC305231AP

CONNECTOR: C-02

AC305413

C-218 (GR)

CONNECTOR: C-218

AI

HARNESS SIDE

JUNCTION BLOCK
(REAR VIEW)

68

74

63

66

72

73

67

65 64

61

70

71

62

69

60

57

58

59

56 55

52

54 53

51

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