Mitsubishi Grandis. Manual — part 542

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-266

STEP 48. Resistance measurement at the A-07
joint connector (CAN1).
NOTE: When checking A-07 joint connector (CAN1),
disassemble and check the engine compartment
relay box by referring to

P.54D-616

.

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 (CAN1) and the

intermediate connector, and measure at the
wiring harness side.

CAUTION

When measuring the resistance, disconnect the
negative battery terminal. For details refer to

P.54D-8

.

(2) Ensure that the negative battery terminal is

disconnected.

(3) Resistance between A-07 joint connector (CAN1)

terminal No.6 and body earth

OK: 1 k

Ω or more

Q: Is the check result normal?

YES :

<1 k

Ω or more> Go to Step 49.

NO :

<less than 1 k

Ω> Repair the wiring harness

between the joint connector (CAN1) and the
intermediate connector.

STEP 49. Resistance measurement at the A-16
intermediate 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 engine-ECU <M/T> or

engine-A/T-ECU <A/T> connector and the

AC302572AD

Connector: A-07

Harness side

AC310398

AC

Connector: A-16 <RHD>

A-16 (B)

AC209364

AC209364

AC209364

AC209364

Harness side: A-07

AC209364LZ

Test harness

AC310398

AC

Connector: A-16 <RHD>

A-16 (B)

AC310628AW

Harness side

Connector: C-112 <RHD>

C-112 (GR)

61

62

63

64

65

66

67

68

69

70

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72

73

74

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79

80

81

82

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84

85

86

87

88

89

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-267

intermediate connector, and measure at the
wiring harness side.

CAUTION

When measuring the resistance, disconnect the
negative battery terminal. For details refer to

P.54D-8

.

(2) Ensure that the negative battery terminal is

disconnected.

(3) Resistance between A-16 intermediate connector

terminal No.6 and body earth

OK: 1 k

Ω or more

CAUTION

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

P.54D-8

.

Q: Is the check result normal?

YES :

<1 k

Ω or more> Follow diagnostic item 19,

Diagnose CAN bus lines thoroughly. Refer
to

P.54D-502

.

NO :

<less than 1

Ω> Repair the wiring harness

between the intermediate connector and the
engine-ECU <M/T> or engine-A/T-ECU
<A/T> connector.

STEP 50. Connector check: A-03 ABS-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 51.

NO :

Repair the defective connector.

STEP 51. Resistance measurement at the A-07
joint connector (CAN1).
NOTE: When checking A-07 joint connector (CAN1),
disassemble and check the engine compartment
relay box by referring to

P.54D-616

.

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 (CAN1) and the

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

CAUTION

When measuring the resistance, disconnect the
negative battery terminal. For details refer to

P.54D-8

.

(2) Ensure that the negative battery terminal is

AC209364

AC209364

AC209364MB

Male side: A-16

Test
harness

AC310398

AI

Connector: A-03 <RHD>

Harness side

AC302572AD

Connector: A-07

Harness side

AC310398

AI

Connector: A-03 <RHD>

Harness side

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-268

disconnected.

(3) Resistance between A-07 joint connector (CAN1)

terminal No.5 and body earth

OK: 1 k

Ω or more

CAUTION

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

P.54D-8

.

Q: Is the check result normal?

YES :

<1 k

Ω or more> Follow diagnostic item 19,

Diagnose CAN bus lines thoroughly. Refer
to

P.54D-502

.

NO :

<less than 1 k

Ω> Repair the wiring harness

between the joint connector (CAN1) and the
ABS-ECU connector.

STEP 52. Resistance measurement at the A-07
joint connector (CAN1).
NOTE: When checking A-07 joint connector (CAN1),
disassemble and check the engine compartment
relay box by referring to

P.54D-616

.

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 (CAN1) and the

intermediate connector, and measure at the
wiring harness side.

CAUTION

When measuring the resistance, disconnect the
negative battery terminal. For details refer to

P.54D-8

.

(2) Ensure that the negative battery terminal is

AC209364

Harness side: A-07

AC209364MA

Test harness

AC302572AD

Connector: A-07

Harness side

AC310628AB

Connector: C-125 <RHD>

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-269

disconnected.

(3) Resistance between A-07 joint connector (CAN1)

terminal No.4 and body earth

OK: 1 k

Ω or more

CAUTION

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

P.54D-8

.

Q: Is the check result normal?

YES :

<1 k

Ω or more> Follow diagnostic item 19,

Diagnose CAN bus lines thoroughly. Refer
to

P.54D-502

.

NO :

<less than 1 k

Ω> Repair the wiring harness

between the joint connector (CAN1) and the
intermediate connector.

AC209364

Harness side: A-07

AC209364MC

Test
harness