Mitsubishi Galant 9G. Manual - part 1369

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-580

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

terminal 5 and ETACS-ECU connector terminal 72.

OK: 2 ohms or less

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

terminal 16 and ETACS-ECU connector terminal 73.

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 ETACS-ECU may be suspected. 
Diagnose the SWS. Refer to GROUP 54B, Symptom 
procedures 

P.54B-78

.

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 ETACS-ECU connector. 

AC204582

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22

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9

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14

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595857

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71 70

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7372

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TEST 
HARNESS

CN

TEST 
HARNESS

HARNESS SIDE: C-02

HARNESS SIDE: C-218

AC204582

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22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

51

53

54

52

55

56

595857

60

69

62

71 70

61

64

65

67

7372

66

63

74

68

TEST 
HARNESS

CL

HARNESS SIDE: C-02

HARNESS SIDE: C-218

TEST 
HARNESS

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-581

DIAGNOSTIC ITEM 21: Diagnose the lines between CAN main bus line and the multi-center display 
(middle-grade type)

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.

JOINT
CONNECTOR (3)

COMBINATION
METER

POWERTRAIN
CONTROL MODULE

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

MULTI CENTER 
DISPLAY UNIT

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-582

.

JOINT
CONNECTOR (3)

COMBINATION
METER

POWERTRAIN
CONTROL MODULE

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

MULTI CENTER 
DISPLAY UNIT

ABS-ECU

AC305231BD

CONNECTOR: C-02

AC305233 AL

CONNECTOR: C-05

C-05 (B)

DIAGNOSIS

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CONTROLLER AREA NETWORK (CAN)

54C-583

TROUBLE JUDGMENT

If the MUT-III cannot received signals from the 
multi-center display unit (middle-grade type), CAN 
bus line connector(s) are broken 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 multi-center display 
unit (middle-grade type) 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 multi-center display unit (middle-grade type) 

may be defective