Mitsubishi Galant (2004+). Manual — part 389

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-167

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-168

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

voltage 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 voltage at the male side
of intermediate connector C-29 (at front wiring harness
side).

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between intermediate connector

terminal 12 and body ground.

OK: 1.0 V or less

CAUTION

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

P.54C-5

.

Q: Does the voltage measure 1.0 V or less?

YES : If the voltage measures 1.0 V or less, go to Step 54.
NO : If the voltage measures more than 1.0 V, 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

AC209365

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

AC209365

MALE SIDE: C-29

TEST HARNESS

GA

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-169

STEP 54. Check the CAN_L line (communication line only)
between the powertrain control module connector and
ABS-ECU connector for a short to the power supply.
Measure voltage 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 voltage at the
harness side of powertrain control module connector B-19.

(2) Turn the ignition switch to the "ON" position.

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-170

(3) Measure the voltage between powertrain control module

connector terminal 18 and body ground.

OK: 1.0 V or less

CAUTION

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

P.54C-5

.

Q: Does the voltage measure 1.0 V or less?

YES : If the voltage measures 1.0 V or less, go to Step 55.
NO : If the voltage measures more than 1.0 V, repair the

wiring harness between powertrain control module
connector and ABS-ECU connector.

AC209365GJ

HARNESS SIDE: B-19

TEST HARNESS