Mitsubishi Grandis. Manual - part 516

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-162

terminal No.8 and body earth

OK: Less than 1.0 V

(4) Disconnect the negative battery terminal.

CAUTION

Strictly observe the specified wiring harness 
repair procedure. For details refer to 

P.54D-8

.

Q: Is the check result normal?

YES : 

<less than 1.0 V> Follow diagnostic item 20 

"Diagnose CAN bus lines thoroughly." Refer 
to 

P.54D-526

.

NO : 

<1.0 V or more> Repair the wiring harness 
between the joint connector (CAN2) and the 
A/C-ECU connector.

STEP 37. Connector check: C-221 ETACS-ECU 
connector

CAUTION

The strand end of the twist wire should be within 
10 cm from the connector. For details refer to 

P.54D-8

.

Q: Is the check result normal?

YES : 

Go to Step 38 .

NO : 

Repair the defective connector.

STEP 38. Voltage measurement at C-09 joint 
connector (CAN2).

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54D-8

.

CAUTION

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

P.54D-8

.

(1) Disconnect the joint connector (CAN2) and the 

ETACS-ECU connector, and measure at the 
wiring harness side.

(2) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(3) Voltage between C-09 joint connector (CAN2) 

AC310620

Connector: C-221

Junction block 
(Rear view)

<RHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

AC310628AY

Connector: C-09 <RHD>

C-09 (GR)

Harness side

AC310620

Connector: C-221

Junction block 
(Rear view)

<RHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

AC209365KJ

Harness side: C-09

Test harness

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-163

terminal No.5 and body earth

OK: Less than 1.0 V

(4) Disconnect the negative battery terminal.

CAUTION

Strictly observe the specified wiring harness 
repair procedure. For details refer to 

P.54D-8

.

Q: Is the check result normal?

YES : 

<less than 1.0 V> Follow diagnostic item 20 

"Diagnose CAN bus lines thoroughly." Refer 
to 

P.54D-526

.

NO : 

<1.0 V or more> Repair the wiring harness 
between the joint connector (CAN2) and the 
ETACS-ECU connector.

STEP 39. Connector check: C-37 jumper 
connector

CAUTION

The strand end of the twist wire should be within 
10 cm from the connector. For details refer to 

P.54D-8

.

Check that the wiring harness of the jumper 
connector is not damaged.

Q: Is the check result normal?

YES : 

Go to Step 40 .

NO : 

Repair the defective connector.

STEP 40. Voltage measurement at the C-09 joint 
connector (CAN2).

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54D-8

.

CAUTION

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

P.54D-8

.

(1) Disconnect the joint connector (CAN2) and the 

jumper connector, and measure at the wiring 
harness side.

(2) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(3) Voltage between C-09 joint connector (CAN2) 

terminal No.9 and body earth

OK: Less than 1.0 V

(4) Disconnect the negative battery terminal.

Q: Is the check result normal?

AC310628AZ

Connector: C-37 <RHD>

AC310628AY

Connector: C-09 <RHD>

C-09 (GR)

Harness side

AC310628AZ

Connector: C-37 <RHD>

AC209365KU

Harness side: C-09

Test harness

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-164

YES : 

<1.0 V or less> Go to Step 41.

NO : 

<more than 1.0 V> Repair the wiring 
harness between the joint connector 
(CAN2) and the jumper connector.

STEP 41. Connector check: C-07 centre display 
connector

CAUTION

The strand end of the twist wire should be within 
10 cm from the connector. For details refer to 

P.54D-8

.

Q: Is the check result normal?

YES : 

Go to Step 42 .

NO : 

Repair the defective connector.

STEP 42. Voltage measurement at the C-37 
jumper connector.

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54D-8

.

CAUTION

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

P.54D-8

.

(1) Disconnect the centre display connector and the 

jumper connector, and measure at the jumper 
connector (at the centre display side).

(2) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(3) Voltage between C-37 jumper connector terminal 

AC310631AY

Connector: C-07 <RHD>

Harness side

C-07 (B)

AC310631AY

Connector: C-07 <RHD>

Harness side

C-07 (B)

AC310628AZ

Connector: C-37 <RHD>

AC209365KA

Male side: A-16

Test
harness

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-165

No.4 and body earth

OK: Less than 1.0 V

(4) Disconnect the negative battery terminal.

CAUTION

Strictly observe the specified wiring harness 
repair procedure. For details refer to 

P.54D-8

.

Q: Is the check result normal?

YES : 

<less than 1.0 V> Follow diagnostic item 20 

"Diagnose CAN bus lines thoroughly." Refer 
to 

P.54D-526

.

NO : 

<1.0 V or more> Repair the wiring harness 
between the jumper connector and the 
centre display connector.

STEP 43. Connector check: C-119 SRS-ECU 
connector

CAUTION

The strand end of the twist wire should be within 
10 cm from the connector. For details refer to 

P.54D-8

.

Q: Is the check result normal?

YES : 

Go to Step 44 .

NO : 

Repair the defective connector.

STEP 44. Voltage measurement at C-09 joint 
connector (CAN2).

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54D-8

.

CAUTION

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

P.54D-8

.

(1) Disconnect the joint connector (CAN2) and the 

SRS-ECU connector, and measure at the wiring 
harness side.

(2) Connect the negative battery terminal, and turn 

the ignition switch to the ON position.

(3) Voltage between C-09 joint connector (CAN2) 

AC310631AZ

Connector: C-119 <RHD>

Harness side

C-119 (Y)

48

37

26

42

31

45

34

47

36

46

35

44

33

43

32

25 24

39

28

41

30

40

29

38

27

23

21

22

A

B

AC310628AY

Connector: C-09 <RHD>

C-09 (GR)

Harness side

AC310631AZ

Connector: C-119 <RHD>

Harness side

C-119 (Y)

48

37

26

42

31

45

34

47

36

46

35

44

33

43

32

25 24

39

28

41

30

40

29

38

27

23

21

22

A

B

AC209365KN

Harness side: C-09

Test
harness