Mitsubishi L200. Manual — part 842

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-127

DIAGNOSIS PROCEDURE

STEP 1. Connector check: C-53 <LHD> or C-35
<RHD> intermediate connector, C-119 joint
connector (CAN1) and C-01 joint connector
(CAN2)

AC903853

BR

Connectors: C-01, C-53, C-119 <LHD>

C-01 (L)

C-53

C-119 (GR)

C-53

C-01, C-119

AC903865AW

Connectors: C-01, C-35 <RHD>

C-01 (L)

C-35

C-01

C-35

AC903868

CM

Connector: C-119 <RHD>

C-119 (GR)

CAUTION

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

P.54C-7

.

AC209350

1

12

2

13

3

14

4

15

5

16

6

17

7

18

8

19

9

20

10

21

11

22

AC209350

1

12

2

13

3

14

4

15

5

16

6

17

7

18

8

19

9

20

10

21

11

22

AC

Short pin

When checking the joint connector, ensure that its
wiring harness side and its short pins are not dam-
aged.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Repair the defective connector. Replace the
joint connector as necessary.

STEP 2. Resistance measurement at C-119 joint
connector (CAN1) and C-53 <LHD> or C-35
<RHD> intermediate connector.

CAUTION

A digital multimeter should be used. For details
refer to

P.54C-7

.

CAUTION

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

P.54C-7

.

AC903853

BS

Connectors: C-53, C-119 <LHD>

C-53

C-119 (GR)

C-53

C-119

AC903865

Connector: C-35 <RHD>

AQ

AC903868

CM

Connector: C-119 <RHD>

C-119 (GR)

(1) Disconnect the joint connector (CAN1) and the

intermediate connector, and measure at the
wiring harness side.

(2) Turn the ignition switch to the LOCK (OFF)

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-128

position.

CAUTION

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

P.54C-7

.

(3) Ensure that the negative battery terminal is

disconnected.

AC204740

AC204740

AC204740

AC204740

AC204740

Female side: C-53 <LHD> or C-35 <RHD>

Harness side: C-119

NB

Test harness

Test
harness

(4) Continuity between C-119 joint connector (CAN1)

terminal No.11 and C-53 <LHD> or C-35 <RHD>

intermediate connector terminal No.6

OK: Continuity (2

Ω or less)

AC204740

AC204740

AC204740

Female side: C-53 <LHD> or C-35 <RHD>

Harness side: C-119

AC204740

AC204740

AC204740MU

Test harness

Test
harness

(5) Continuity between C-119 joint connector (CAN1)

terminal No.22 and C-53 <LHD> or C-35 <RHD>
intermediate connector terminal No.7

OK: Continuity (2

Ω or less)

CAUTION

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

P.54C-7

.

Q: Is the check result normal?

YES :

<All the resistances measure 2

Ω or less>

Go to Step 3 .

NO :

<Either or all of the resistances measure
more than 2

Ω> Repair the wiring harness

between joint connector (CAN1) and
intermediate connector C-53 <LHD> or C-
35 <RHD>.

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-129

STEP 3. Resistance measurement at C-01 joint
connector (CAN2) and C-53 <LHD> or C-35
<RHD> intermediate connector.

CAUTION

A digital multimeter should be used. For details
refer to

P.54C-7

.

CAUTION

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

P.54C-7

.

AC903853

BT

Connectors: C-01, C-53 <LHD>

C-01 (L)

C-53

C-53

C-01

AC903865AW

Connectors: C-01, C-35 <RHD>

C-01 (L)

C-35

C-01

C-35

(1) Disconnect joint connector (CAN2) and the

intermediate connector, and measure at the
wiring harness side.

(2) Turn the ignition switch to the LOCK (OFF)

position.

CAUTION

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

P.54C-7

.

(3) Ensure that the negative battery terminal is

disconnected.

AC204740

AC204740

AC204740

AC204740

AC204740

AC204740

Male side: C-53 <LHD> or C-35 <RHD>

Harness side: C-01

MV

Test harness

Test
harness

(4) Continuity between C-01 joint connector (CAN2)

terminal No.11 and C-53 <LHD> or C-35 <RHD>
intermediate connector terminal No.6

OK: Continuity (2

Ω or less)

AC204740

AC204740

AC204740

AC204740

Male side: C-53 <LHD> or C-35 <RHD>

Harness side: C-01

AC204740

AC204740

AC204740MW

Test harness

Test
harness

(5) Continuity between C-01 joint connector (CAN2)

terminal No.22 and C-53 <LHD> or C-35 <RHD>

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-130

intermediate connector terminal No.7

OK: Continuity (2

Ω or less)

CAUTION

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

P.54C-7

.

Q: Is the check result normal?

YES :

<All the resistances measure 2

Ω or less>

Follow diagnosis item 5, 6, 7, 8, 9, 10, 11,
13 and 14. Refer to

P.54C-14

.

NO :

<Either or all of the resistances measure
more than 2

Ω> Repair the wiring harness

between the intermediate connector and the
intermediate connector.