Mitsubishi Galant (2004+). Manual - part 644

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-127

STEP 2. Check the transmission range switch.

Measure the resistance between the terminals for each trans-
mission range as indicated in the table below.

NOTE: For vehicles with sport mode, four positions (P, R, N, D) 
are used.
Q: Does the resistance measure less than 2 ohms for each 

transmission range?
YES : Go to Step 3.
NO :  Replace the transmission range switch. Refer to 

GROUP 23B, Transaxle 

P.23B-10

.

TRANS
MISSION 
RANGE

TERMINAL 
CONNECTION OF 
TESTER

SPECIFIED 
CONDITION

P

3 

− 8, 9 − 10

Less than 2 ohms.

R

7 

− 8

N

4 

− 8, 9 − 10

D

1 

− 8

3

5 

− 8

2

2 

− 8

L

6 

− 8

AC305881

AC305532

AC305679

<F4A4B>

<F4A5A>

AC

TRANSMISSION
RANGE SWITCH

TRANSMISSION
RANGE SWITCH

AC304078

P

R

N

D

<F4A4B>

AC

3

2

L

AC210182AC

P

R

N

D

<F4A5A>

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-128

STEP 3. Check intermediate connector A-13, transmission 
range switch connector B-110, joint connector (1) C-01 and 
junction block connector C-214 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.

Q: Are the connectors and terminals in good condition?

YES : Go to Step 4.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

AC306223

A-13 (GR)

AB

CONNECTOR: A-13

1

4

7

8

2 3

5

13

14

17

15

12

16

11

10

9

6

AC210068

CONNECTOR: B-110

B-110 (B)

AE

TRANSMISSION
RANGE SWITCH

1

7

2

8

3

5

9

4

10

6

AC305231

CONNECTOR: C-01

AS

33

22

11

28

17

16

15

14

13

12

25

2324

2627

3

1 2

4 5

21

20

19

18

29 30

32

31

7

6

8

10

9

AC207120

CONNECTOR: C-214

AU 

C-214

6

1

7

2

9

8

10

3

5

12

11

4

1314

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-129

STEP 4. Check harness for open or short circuit to ground 
between transmission range switch connector B-110 
terminal 8 and junction block connector C-214 terminal 12.

Q: Is the harness wire in good condition?

YES : Go to Step 5.
NO :  Repair or replace the harness wire.

STEP 5. Using scan tool MB991958, check data list item 
61:Transmission Range Switch.

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

(3) Set scan tool MB991958 to the data reading mode.

• Item 61: Transmission Range Switch.

• Move the selector lever to "P," "R," "N," "D," "3," "2," 

"L" and sport mode positions and confirm that the 
selected transmission range match the positions 
shown on scan tool MB991958. (Vehicles with sport 
mode is indicated as "D" on the scan tool).

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the switch operating properly?

YES :  It can be assumed that this malfunction is 

intermittent. Refer to GROUP 00, How to Use 
Troubleshooting/Inspection Service Points 

− How to 

Cope with Intermittent Malfunction 

P.00-6

.

NO :  Replace the PCM.

AC210068

CONNECTOR: B-110

B-110 (B)

AE

TRANSMISSION
RANGE SWITCH

1

7

2

8

3

5

9

4

10

6

AC207120

CONNECTOR: C-214

AU 

C-214

6

1

7

2

9

8

10

3

5

12

11

4

1314

AC305412

AB

MB991910

DATA LINK

CONNECTOR

MB991824

MB991827

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-130

STEP 6. Check the transmission range switch.

Measure the resistance between the terminals for each trans-
mission range as indicated in the table below.

NOTE: For vehicles with sport mode, four positions (P, R, N, D) 
are used.
Q: Does the resistance measure less than 2 ohms for each 

transmission range?
YES : Go to Step 7.
NO :  Replace the transmission range switch. Refer to 

GROUP 23B, Transaxle 

P.23B-10

.

TRANS
MISSION 
RANGE

TERMINAL 
CONNECTION OF 
TESTER

SPECIFIED 
CONDITION

P

3 

− 8, 9 − 10

Less than 2 ohms.

R

7 

− 8

N

4 

− 8, 9 − 10

D

1 

− 8

3

5 

− 8

2

2 

− 8

L

6 

− 8

AC305881

AC305532

AC305679

<F4A4B>

<F4A5A>

AC

TRANSMISSION
RANGE SWITCH

TRANSMISSION
RANGE SWITCH

AC304078

P

R

N

D

<F4A4B>

AC

3

2

L

AC210182AC

P

R

N

D

<F4A5A>