Mitsubishi Grandis. Manual — part 606

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-522

STEP 32. Resistance measurement at C-125
intermediate connector and 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.

(2) Ignition switch: OFF (LOCK)

CAUTION

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

P.54D-8

.

(3) Ensure that the negative battery terminal is

disconnected.

(4) Continuity between C-125 intermediate

connector terminal No.26 and A-07 joint
connector (CAN1) terminal No.4

OK: 2

Ω or less

(5) Continuity between C-125 intermediate

connector terminal No.27 and A-07 joint

AC302572AD

Connector: A-07

Harness side

AC310628AB

Connector: C-125 <RHD>

AC312553 AU

Male side: C-125

Test harness

Harness side: A-07

Test
harness

AC312553

Male side: C-125

Test harness

AV

Harness side: A-07

Test
harness

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-523

connector (CAN1) terminal No.1

OK: 2

Ω or less

CAUTION

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

P.54D-8

.

Q: Are the check results normal?

YES :

<All the voltages measure 2

Ω or less> Go

to Step 33 .

NO :

<Either or all of the resistances measure
more than 2

Ω> Repair the wiring harness

between joint connector (CAN1) and the
intermediate connector.

STEP 33. Resistance measurement at C-125
intermediate connector and 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

intermediate connector, and measure at the
wiring harness side.

(2) Ignition switch: OFF (LOCK)

CAUTION

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

P.54D-8

.

(3) Ensure that the negative battery terminal is

disconnected.

(4) Continuity between C-125 intermediate

connector terminal No.26 and C-09 joint
connector (CAN2) terminal No.11

OK: 2

Ω or less

(5) Continuity between C-125 intermediate

connector terminal No.27 and C-09 joint

AC310628AB

Connector: C-125 <RHD>

AC312553

AC312553 AN

Harness side: C-09

Test
harness

Female side: C-125

Test harness

AC312553

AC312553 AP

Harness side: C-09

Test
harness

Female side: C-125

Test harness

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-524

connector (CAN2) terminal No.22

OK: 2

Ω or less

CAUTION

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

P.54D-8

.

Q: Are the check results normal?

YES :

<All the voltages measure 2

Ω or less> Go

to Step 34 .

NO :

<Either or all of the resistances measure
more than 2

Ω> Repair the wiring harness

between joint connector (CAN2) and the
intermediate connector.

STEP 34. Resistance measurement at C-09 joint
connector (CAN2) and C-126 diagnosis
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 connector, and measure at the

wiring harness side.

(2) Ignition switch: OFF (LOCK)

CAUTION

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

P.54D-8

.

(3) Ensure that the negative battery terminal is

disconnected.

(4) Continuity between C-09 joint connector (CAN2)

terminal No.7 and C-126 diagnosis connector
terminal No.6

OK: 2

Ω or less

(5) Continuity between C-09 joint connector (CAN2)

terminal No.18 and C-126 diagnosis connector

AC310628AY

Connector: C-09 <RHD>

C-09 (GR)

Harness side

AC310631AK

Connector: C-126 <RHD>

C-126 (B)

Harness side
(Front side)

AC312553

Harness side: C-09

Test
harness

AX

Front side : C-126

Test
harness

AC312553 AZ

Front side : C-126

Test
harness

Test
harness

Harness side: C-09

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-525

terminal No.14

OK: 2

Ω or less

CAUTION

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

P.54D-8

.

Q: Are the check results normal?

YES :

<All the resistances measure 2

Ω or less>

Diagnostics item 11: Diagnose shorts
between CAN_L and H lines. Refer to

P.54D-354

.

NO :

<Either or all of the resistances measure
more than 2

Ω> Repair the wiring harness

between joint connector (CAN1) and the
diagnosis connector.