Mitsubishi Galant (2004+). Manual - part 473

 

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Mitsubishi Galant (2004+). Manual - part 473

 

 

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-503

STEP 4. Using scan tool MB991958, diagnose the CAN bus 
line (Disconnect intermediate connector C-29, and then 
determine that a failure is present at either the front wiring 
harness side or the instrument panel wiring harness side).

(1) Disconnect intermediate connector C-29.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.

(2) Connect scan tool MB991958 to the data link connector.
(3) Turn the ignition switch to the "ON" position.

(4) Diagnose CAN bus lines, and check if the MUT-III screen is 

as shown in the illustration.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
(6) Connect intermediate connector C-29.
Q: Does the MUT-III screen correspond to the illustration?

YES : If the MUT-III screen corresponds to the illustration, 

go to Step 20 .

NO :  If the MUT-III screen does not correspond to the 

illustration, go to Step 5.

AC305231AI

CONNECTOR: C-29

AC206894

AB

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

AC306074

: Red section on screen

PCM

METER

-ECU

ABS-ECU

AB

MUT

ETACS

-ECU

AC-ECU

SRS-ECU

J/C

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-504

STEP 5. 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: Is joint connector (3) C-02 in good condition?

YES : Go to Step 6.
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-505

STEP 6. Using scan tool MB991958, diagnose the CAN bus 
line (Disconnect combination meter connector C-101, and 
check the combination meter system).

(1) Disconnect combination meter connector C-101.
(2) Turn the ignition switch to the "ON" position.

(3) Diagnose CAN bus lines, and check if the MUT-III screen is 

as shown in the illustration.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Disconnect combination meter connector C-101.
Q: Does the MUT-III screen correspond to the illustration?

YES : If the MUT-III screen corresponds to the illustration, 

go to Step 7.

NO :  If the MUT-III screen does not correspond to the 

illustration, go to Step 8.

AC305231AQ

CONNECTOR: C-101

HARNESS SIDE

AC306074

: Red section on screen

AC

PCM

METER

-ECU

MUT

ETACS

-ECU

AC-ECU

SRS-ECU

ABS-ECU

J/C

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-506

STEP 7. 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

 

 

 

 

 

 

 

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