Mitsubishi Galant (2004+). Manual - part 469

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-487

(4) Measure the resistance between intermediate connector 

terminal 22 and SRS-ECU connector terminal 32.

OK: 2 ohms or less

(5) Measure the resistance between intermediate connector 

terminal 23 and SRS-ECU connector terminal 43.

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 18.

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 intermediate 
connector and the SRS-ECU connector. 

AC204582

48

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22

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31

32

33

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43

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46

47

AC204582

TEST 
HARNESS

CC

TEST 
HARNESS

MALE SIDE: C-22

HARNESS SIDE: C-121

AC204582

48

21

22

23

24

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AC204582

TEST 
HARNESS

CB

TEST 
HARNESS

MALE SIDE: C-22

HARNESS SIDE: C-121

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-488

STEP 18. Check the CAN bus lines between joint 
connector (3) and the intermediate connector. Measure the 
resistance between joint connector (3) C-02 and 

intermediate connector C-22.

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 intermediate 

connector C-22, and measure the resistance at the wiring 
harness sides of joint connector (3) C-02 and intermediate 
connector C-22.

(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.

AC305231AP

CONNECTOR: C-02

AC305233 AI

CONNECTOR: C-22

C-22 (Y)

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-489

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

terminal 3 and intermediate connector terminal 22.

OK: 2 ohms or less

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

terminal 14 and intermediate connector terminal 23.

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 SRS-ECU may be suspected. Diagnose 
the supplemental restraint system. Refer to GROUP 
52B, SRS air bag diagnosis, equipment diagnosis 

P.52B-30

.

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 intermediate connector. 

AC204582

AC204582

HARNESS SIDE: C-02

TEST 
HARNESS

CE

11

22

10

21

9

20

8

19

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18

6

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5

16

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15

3

14

2

13

1

12

TEST 
HARNESS

FEMALE SIDE: C-22

AC204582

AC204582

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

TEST 
HARNESS

CD

TEST 
HARNESS

HARNESS SIDE: C-02

FEMALE SIDE: C-22

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-490

STEP 19. Check the CAN bus lines between joint 
connector (3) and the data link connector. Measure the 
resistance between joint connector (3) C-02 and data link 

connector C-125.

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 measure the 

resistance between the wiring harness side connector of 
joint connector (3) C-02 and wiring harness side connector 
of data link connector C-125.

(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

C-125

CONNECTORS: C-02, C-125

AF

C-02

C-02

C-125 (B)