Mitsubishi Galant 9G. Manual - part 1374

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-600

STEP 4. Check the CAN bus lines between intermediate 
connector C-22 and joint connector (3). Measure the 
resistance between intermediate connector C-22 and 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 joint connector (3) C-02 and intermediate 

connector C-22, and measure the resistance between the 
wiring harness side connector of joint connector (3) C-02 
and the female side connector of intermediate connector 
C-22 (instrument panel 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.

AC305231AP

CONNECTOR: C-02

AC305233 AI

CONNECTOR: C-22

C-22 (Y)

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-601

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

terminal 14 and intermediate connector terminal 23.

OK: 2 ohms or less

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

terminal 3 and intermediate connector terminal 22.

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 

P.52B-29

.

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 SRS-ECU connector. 

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

AC204582

AC204582

HARNESS SIDE: C-02

TEST 
HARNESS

CE

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

TEST 
HARNESS

FEMALE SIDE: C-22

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-602

DIAGNOSTIC ITEM 24: Failure in the lines between CAN main bus line and the combination meter.

CAUTION

When servicing a CAN bus line, ground yourself 
by touching a metal object such as an unpainted 
water pipe. If you fail to do so, a component con-
nected to the CAN bus line may be damaged.

<WITHOUT ELECTRONIC BRAKE-FORCE DISTRIBUTION (EBD) 
AND ANTI-LOCK BRAKING SYSTEM (ABS)>

POWERTRAIN
CONTROL MODULE

JOINT
CONNECTOR (3)

COMBINATION
METER

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-603

.

<WITH ELECTRONIC BRAKE-FORCE DISTRIBUTION (EBD) 
AND ANTI-LOCK BRAKING SYSTEM (ABS)>

POWERTRAIN
CONTROL MODULE

ABS-ECU

JOINT
CONNECTOR (3)

COMBINATION
METER

AC305231AV

CONNECTORS: C-02, C-101

C-02

C-101