Mitsubishi Galant 9G. Manual — part 1336

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-448

(4) Measure the resistance between joint connector (3)

terminal 15 and combination meter connector terminal 15.

OK: 2 ohms or less

(5) Measure the resistance between joint connector (3)

terminal 4 and combination meter connector terminal 14.

OK: 2 ohms or less

CAUTION

Strictly observe the specified wiring harness repair proce-
dure. For details refer to

P.54C-5

.

Q: Do all the resistances measure 2 ohms or less?

YES : If all the resistances measure 2 ohms or less, go to

Step 6.

NO : If either of the resistances measures more than 2

ohms or all the resistances measure more than 2
ohms, repair the wiring harness between joint
connector (3) and the combination meter connector.

AC204582

HARNESS SIDE: C-02

BZ

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

G

G

22

11

5

16

19

20

21

17

18

8

10 9

7 6

13

1514

12

2

4 3

1

TEST
HARNESS

HARNESS SIDE: C-101

TEST
HARNESS

AC204582

HARNESS SIDE: C-02

TEST
HARNESS

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

G

G

22

11

5

16

19

20

21

17

18

8

10 9

7 6

13

1514

12

2

4 3

1

TEST
HARNESS

HARNESS SIDE: C-101

CA

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-449

STEP 6. Check the terminator resistor inside the
combination meter. Measure the resistance at combination
meter connector C-101.

CAUTION

A digital multimeter should be used. For details refer to

P.54C-4

.

(1) Disconnect combination meter C-101, and measure the

resistance at the component side of combination meter
connector C-101.

(2) Measure the resistance between combination meter

connector terminals 14 and 15.

OK: 120

± 20 Ω

Q: Does the resistance measure 120

± 20 Ω?

YES : If the resistance measures 120

± 20 Ω, diagnose CAN

bus lines thoroughly by referring to

P.54C-486

<Vehicles without multi-center display (middle-grade
type)> or

P.54C-520

<Vehicles with multi-center

display (middle-grade type)>.

NO : If the resistance does not measure 120

± 20 , replace

the combination meter.

AC305231AQ

CONNECTOR: C-101

HARNESS SIDE

AC204582BY

COMPONENT SIDE: C-101

G

11

22

17

3

14

G

12

1

13

2

15

4

16

5

18

7

6

19

8

10

21

20

9

TEST
HARNESS

TEST HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-450

STEP 7. Check powertrain control module connector B-19
and ABS-ECU connector A-02 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.

CAUTION

The strand end of the twisted wire should be within 10 cm
(4 inches) from the connector. For details refer to

P.54C-4

.

Q: Are powertrain control module connector B-19 and

ABS-ECU connector A-02 in good condition?
YES : Go to Step 8.
NO : Repair the damaged parts.

AC305206

CONNECTOR: A-02

AG

A-02 (GR)

HARNESS SIDE

AC306248AD

B-19 (B)

CONNECTOR: B-19

PCM

AIR
CLEANER

HARNESS SIDE

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-451

STEP 8. Check the CAN bus lines between the ABS-ECU
and the powertrain control module (communication line
including the powertrain control module). Measure the
resistance at ABS-ECU connector A-02.

CAUTION

A digital multimeter should be used. For details refer to

P.54C-4

.

CAUTION

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

P.54C-4

.

(1) Disconnect ABS-ECU connector A-02, and measure the

resistance at the wiring harness side of ABS-ECU
connector A-02.

(2) Turn the ignition switch to the "LOCK" (OFF) position.

position

CAUTION

Disconnect the negative battery terminal. For details refer
to

P.54C-4

.

(3) Disconnect the negative battery terminal.

(4) Measure the resistance between ABS-ECU connector

terminals 23 and 24.

OK: 120

± 20 Ω

Q: Does the resistance measure 120

± 20 Ω?

YES : If the resistance measures 120

± 20 Ω, diagnose CAN

bus lines thoroughly by referring to

P.54C-486

<Vehicles without multi-center display (middle-grade
type)> or

P.54C-520

<Vehicles with multi-center

display (middle-grade type)>.

NO : If the resistance does not measure 120

± 20 Ω, go to

Step 9 .

AC305206

CONNECTOR: A-02

AG

A-02 (GR)

HARNESS SIDE

AC209438

2

19

1

18

25

8

15

16

17

27

28

26

11

9

10

12

13

14

23

24

22 21

7

6

5

4

20

3

AE

TEST
HARNESS

HARNESS SIDE: A-02

TEST
HARNESS