Mitsubishi Galant (2004+). Manual — part 424

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-307

STEP 51. Check the CAN_L line (communication line only)
between intermediate connector C-29 and joint connector
(3) for short to ground. Measure the resistance at joint

connector (3) C-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 intermediate connector C-29 and joint

connector (3) C-02, and measure the resistance at the
wiring harness side of joint connector (3) C-02.

(2) Turn the ignition switch to the "LOCK" (OFF) 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 joint connector (3)

terminal 20 and body ground.

OK: 1 k

Ω or more

CAUTION

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

P.54C-5

.

Q: Does the resistance measure 1 k

Ω or more?

YES : If the resistance measures 1 k

Ω or more, diagnose

CAN bus lines thoroughly by referring to

P.54C-534

.

NO : If the resistance measures less than 1 k

Ω, repair the

wiring harness between intermediate connector C-29
and joint connector (3).

AC305232

CONNECTORS: C-02, C-29

AG

C-02

C-02

C-29

C-29

AC209364IO

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

HARNESS SIDE: C-02

TEST HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-308

STEP 52. Check 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: Is ABS-ECU connector A-02 in good condition?

YES : Go to Step 53.
NO : Repair the damaged parts.

AC305206

CONNECTOR: A-02

AG

A-02 (GR)

HARNESS SIDE

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-309

STEP 53. Check the CAN_L line (communication line only)
between intermediate connector C-29 and ABS-ECU
connector for short to ground. Measure the resistance at

intermediate connector C-29.

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 intermediate connector C-29 and ABS-ECU

connector A-02, and measure the resistance at the male
side of intermediate connector C-29 (at front wiring harness
side).

(2) Turn the ignition switch to the "LOCK" (OFF) 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 intermediate connector

terminal 12 and body ground.

OK: 1 k

Ω or more

CAUTION

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

P.54C-5

.

Q: Does the resistance measure 1 k

Ω or more?

YES : If the resistance measures 1 k

Ω or more, go to Step

54 .

NO : If the resistance measures less than 1 k

Ω, repair the

wiring harness between intermediate connector C-29
and ABS-ECU connector.

AC305206

CONNECTOR: A-02

AG

A-02 (GR)

HARNESS SIDE

AC305231AI

CONNECTOR: C-29

AC209364

2 3

27

32

28

33

16

15

4 5

19

18

29

17

34

7 8

35

22

21

9 10

30

36

31

37

25

24

23

6

20

1

14

26

11

13

12

38

MALE SIDE: C-29

TEST HARNESS

GA

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-310

STEP 54. Check the CAN_L line (communication line only)
between the powertrain control module connector and
ABS-ECU connector for short to ground. Measure the

resistance at powertrain control module connector B-19.

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 powertrain control module connector B-19 and

ABS-ECU connector A-02, and measure the resistance at
the harness side of powertrain control module connector
B-19.

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

CAUTION

Disconnect the negative battery terminal. For details refer
to

P.54C-4

.

(3) Disconnect the negative battery terminal.

AC305206

CONNECTOR: A-02

AG

A-02 (GR)

HARNESS SIDE

AC306248AD

B-19 (B)

CONNECTOR: B-19

PCM

AIR
CLEANER

HARNESS SIDE