Mitsubishi Galant 9G. Manual - part 1372

 

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Mitsubishi Galant 9G. Manual - part 1372

 

 

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-592

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

terminal 17 and A/C-ECU connector terminal 6 <manual air 
conditioning system (low)> or 14 <manual air conditioning 
system (middle) or automatic air conditioning system>.

OK: 2 ohms or less

AC204582CF

HARNESS SIDE: C-10

TEST 
HARNESS

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

AC204582

AC204582

HARNESS SIDE: C-02

TEST HARNESS

CG

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

TEST 
HARNESS

HARNESS SIDE: C-15

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-593

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

terminal 6 and A/C-ECU connector terminal 5 <manual air 
conditioning system (low)> or 15 <manual air conditioning 
system (middle) or automatic air conditioning system>.

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 A/C-ECU may be suspected. Diagnose 
the air conditioning system. Refer to GROUP 55A, 
Manual A/C diagnosis 

P.55A-242

.

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 A/C-ECU connector. 

AC204582

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

CH

TEST HARNESS

TEST HARNESS

HARNESS SIDE: C-02

HARNESS SIDE: C-10

AC204582

8

2

10 9

1

5

3

4

6

7

20191817161514131211

TEST 
HARNESS

CI

HARNESS SIDE: C-15

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

TEST HARNESS

HARNESS SIDE: C-02

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-594

DIAGNOSTIC ITEM 23: Diagnose the lines between CAN main bus line and the SRS-ECU.

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

SRS-ECU

POWERTRAIN
CONTROL MODULE

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

DIAGNOSIS

TSB Revision

CONTROLLER AREA NETWORK (CAN)

54C-595

.

JOINT
CONNECTOR (3)

COMBINATION
METER

SRS-ECU

POWERTRAIN
CONTROL MODULE

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

ABS-ECU

AC305231BD

CONNECTOR: C-02

AC305233 AT

CONNECTORS: C-22, C-121

C-121 (Y)

C-22 (Y)

 

 

 

 

 

 

 

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