Mitsubishi Galant 9G. Manual - part 1375

 

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Mitsubishi Galant 9G. Manual - part 1375

 

 

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-604

TROUBLE JUDGMENT

If the MUT-III cannot received signals from the com-
bination meter, CAN bus line connector(s) are bro-
ken or an open circuit has occurred.

.

COMMENTS ON TROUBLE SYMPTOM

The wiring harness wire or connectors may have 
loose, corroded, or damage terminals, or terminals 
pushed back in the connector, or the combination 
meter may be defective.

.

TROUBLESHOOTING HINTS

• The wiring harness or connectors may have 

loose, corroded, or damage terminals, or termi-
nals pushed back in the connector

• The combination meter may be defective

DIAGNOSIS

Required Special Tool:

• MB991223: Harness Set

STEP 1. Check joint connector (3) C-02 and combination 
meter connector C-101 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

.

Check the joint connector at the wiring harness side for loose, 
corroded or damaged terminals, or terminals pushed back in 
the connector, and also check the short pin behind the connec-
tor for corrosion, deformation and delamination.
Q: Are joint connector (3) C-02 and combination meter 

connector C-101 in  good condition?
YES : 
Go to Step 2.
NO :  Repair the damaged parts. Replace the joint 

connector as necessary.

AC305232

HARNESS SIDE

C-101

CONNECTORS: C-02, C-101

AE

C-02

C-02

C-101

AC209350

1

12

2

13

3

14

4

15

5

16

6

17

7

18

8

19

9

20

10

21

11

22

AB

SHORT PIN

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-605

STEP 2. Check the CAN bus lines between joint connector 
(3) and the combination meter. Measure the resistance 
between joint connector (3) C-02 and combination meter 
connector C-101.

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 joint connector (3) C-02 and combination meter 

connector C-101, and measure the resistance between 
each wiring harness side connector.

(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.

AC305232

HARNESS SIDE

C-101

CONNECTORS: C-02, C-101

AE

C-02

C-02

C-101

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-606

(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, power 

supply to the combination meter may be suspected. 
Diagnose the combination meter. Refer to GROUP 
54A, Combination meter assembly 

P.54A-252

.

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

CAN COMMUNICATION SIGNAL TABLE

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-607

CAN COMMUNICATION SIGNAL TABLE

M1548300400059

SIGNAL

TRANSMITTER 
ECU

RECEIVER 
ECU

POWER TRAIN 
CONTROL 
MODULE

A BS-ECU

MULTI-CENTER 
DISPLAY UNIT 
(MID DLE-
GRADE TYPE)

COMBINATION 
METER

A/C-ECU

ETACS-ECU

Engine speed signal

Power 
train 
control 
module

×

×

×

A/C information signal

×

Vehicle speed signal

×

×

Vehicle stop signal

×

×

×

×

Malfunction indicator 
lamp request signal

×

Auto-cruise control 
indicator lamp signal

×

Engine coolant 
temperature signal

×

×

Selector position signal

×

×

×

×

ABS warning light 
request signal

ABS-ECU −

×

SRS warning light 
request signal

SRS-ECU −

×

Communication 
continuation request 
signal

Multi-cent
er display 
unit 
(middle-gr
ade type)

×

×

Ignition switch (ACC) 
signal

×

×

Adjustment request 
signal

×

×

Customize signal

×

×

Tone alarm sound 
signal

×

×

Communication 
continuation request 
signal

Combinati
on meter

×

Vehicle speed signal

×

Ignition switch (IG1) 
signal

×

Seat belt signal

×

Fuel information signal

×

 

 

 

 

 

 

 

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