Mitsubishi L200. Manual — part 827

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-67

<RHD> intermediate connector terminal Nos.6
and 7

OK: 120

± 20 Ω

Q: Is the check result normal?

YES :

<Within 120

± 20 Ω> Go to Step 3.

NO :

<Not within 120

± 20 Ω> Go to Step 8.

STEP 3. Connector check: C-01 joint connector
(CAN2)

AC903853

BL

Connector: C-01 <LHD>

C-01 (L)

AC903865AU

Connector: C-01 <RHD>

C-01 (L)

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

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7

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20

10

21

11

22

AC209350

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12

2

13

3

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4

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7

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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 4.

NO :

Repair a defective connector or replace the
joint connector.

STEP 4. Resistance measurement at C-01 joint
connector (CAN2).

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

BL

Connector: C-01 <LHD>

C-01 (L)

AC903865AU

Connector: C-01 <RHD>

C-01 (L)

(1) Disconnect the 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.

AC204738

AC204738MA

Harness side: C-01

Test harness

Test harness

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

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-68

terminal Nos.9 and 20 <LHD>

OK: 120

± 20 Ω

AC204738

AC204738SF

Harness side: C-01

Test harness

Test harness

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

terminal Nos.10 and 21 <RHD>

OK: 120

± 20 Ω

CAUTION

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

P.54C-7

.

Q: Is the check result normal?

YES <M/T> :

<Within 120

± 20 Ω> Repair the

wiring harness between joint connector
(CAN2) and intermediate connector C-53
<LHD> or C-35 <RHD>.

YES <A/T> :

<Within 120

± 20 Ω> Go to Step 6.

NO :

<Not within 120

± 20 Ω> Go to Step 5.

STEP 5. Resistance measurement at C-103
engine-ECU connector.

CAUTION

A digital multimeter should be used. For details
refer to

P.54C-7

.

AC903853

BV

Connector: C-103 <LHD>

C-103 (B)

Harness side

AC903865 AY

Connector: C-103 <RHD>

Harness side

C-103 (B)

(1) Remove the engine-ECU, and measure at the

equipment side.

AC204738SK

Equipment side: C-103

Test
harness

Test
harness

(2) Resistance between C-103 engine-ECU

connector terminal Nos.108 and 109

OK: 120

± 20 Ω

CAUTION

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

P.54C-7

.

Q: Is the check result normal?

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-69

YES :

<Within 120

± 20 Ω> Repair the wiring

harness between joint connector (CAN2)
and the engine-ECU connector.

NO :

<Not within 120

± 20 Ω> Check the engine-

ECU connector, and repair if necessary. If
the engine-ECU connector is in good
condition, replace the engine-ECU.

STEP 6. Resistance measurement at C-01 joint
connector (CAN2).

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

BL

Connector: C-01 <LHD>

C-01 (L)

AC903865AU

Connector: C-01 <RHD>

C-01 (L)

(1) Disconnect the 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.

AC204738

AC204738SF

Harness side: C-01

Test harness

Test harness

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

terminal Nos.10 and 21 <LHD>

OK: 1 k

Ω or more

AC204738

AC204738MA

Harness side: C-01

Test harness

Test harness

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

terminal Nos.9 and 20 <RHD>

OK: 1 k

Ω or more

CAUTION

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

P.54C-7

.

Q: Is the check result normal?

YES :

<1 k

Ω or more> Repair the wiring harness

between joint connector (CAN2) and
intermediate connector C-53 <LHD> or C-
35 <RHD>.

NO :

<Less than 1 k

Ω> Go to Step 7.

TROUBLESHOOTING

CONTROLLER AREA NETWORK (CAN)

54C-70

STEP 7. Resistance measurement at C-20 A/T-
ECU connector.

CAUTION

A digital multimeter should be used. For details
refer to

P.54C-7

.

AC903856BR

Connector: C-20 <LHD>

Harness side

AC903868

CL

Connector: C-20 <RHD>

Harness side

(1) Remove the A/T-ECU, and measure at the

equipment side.

AC204738

AC204738

AC204738

AC204738HJ

Test harness

Test harness

Equipment side: C-20

(2) Resistance between C-20 A/T-ECU connector

terminal Nos.53 and 54

OK: 1 k

Ω or more

CAUTION

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

P.54C-7

.

Q: Is the check result normal?

YES :

<1 k

Ω or more> Repair the wiring harness

between joint connector (CAN2) and the A/
T-ECU connector.

NO :

<Less than 1 k

Ω> Check the A/T-ECU

connector, and repair if necessary. If the A/
T-ECU connector is in good condition,
replace the A/T-ECU.

STEP 8. Connector check: C-119 joint connector
(CAN1)

AC903853

BM

Connector: C-119 <LHD>

C-119 (GR)

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 9.

NO :

Repair a defective connector or replace the
joint connector.