Mitsubishi Galant (2004+). Manual - part 1701

AUTOMATIC TRANSAXLE

AUTOMATIC TRANSAXLE

23-3

ELECTRONIC CONTROL SYSTEM

CONTROLLER AREA NETWORK (CAN) COMMUNICATION

M2230000200039

CAN communication is used for more reliable data 
transmission. For further details on CAN, refer to 

P.54C-2

 Group 54C, CAN.

EEPROM

M2230000300058

Because EEPROM has been used, even if the bat-
tery terminals or control unit connectors are cut or 
disconnected, the necessary learned values are 
stored in the PCM to prevent a loss of shift quality. 
(Default values can be restored by using the 
MUT-III).

CONTROL UNIT

M2230002000172

The PCM uses a 130-pin connector. The terminals of 
this connector are arranged as shown below.

1 2 3 4

100

5 6 7

8 9 10 11

22

99

12 13 14

15 16 17 18

21

23 24 25

26 27 28 29

30 31 32 33 34

35 36 37 38

39 40 41 42 43

52

51

53 54 55 56

57

58 59 60 61 62

63

64 65 66 67 68 69

70

71 72 73 74 75

76

77 78 79 80 81 82

83

92

91

93 94 95

96 97 98

101 102 103 104

105 106 107 108

109 110 111 112 113

121 122 123 124 125 126 127

128 129 130 131 132 133

134 135 136 137 138 139 140

141 142 143 144 145 146

147 148 149 150 151 152 153

AC206692AE

B-19

B-20

B-21

B-22

B-23

1 to 3.

ENGINE USE

4.

GROUND

5 to 6.

ENGINE USE

7.

GROUND

8.

ENGINE USE

9.

STOPLIGHT SWITCH

10 to 13.

ENGINE USE

14.

VEHICLE SPEED SIGNAL

15 to 16.

ENGINE USE

17.

CAN_H

18.

CAN_L

21 to 31.

ENGINE USE

32.

SHIFT SWITCH (UP) <VEHICLES WITH 
SPORT MODE>

33 to 34.

ENGINE USE

35.

−

36.

SHIFT SWITCH (DOWN) <VEHICLES 
WITH SPORT MODE>

37.

−

38.

ENGINE USE

39.

SELECT SWITCH <VEHICLES WITH 
SPORT MODE>

40.

−

41 to 43.

ENGINE USE

51 to 52.

ENGINE USE

53.

−

54.

TORQUE CONVERTER CLUTCH 
CONTROL SOLENOID VALVE

55.

OVERDRIVE SOLENOID VALVE

56.

LOW-REVERSE SOLENOID VALVE

57.

SOLENOID VALVE POWER SUPPLY

58 to 60.

ENGINE USE

61.

TRANSMISSION RANGE SWITCH: R

62.

TRANSMISSION RANGE SWITCH: 3 
<VEHICLES WITHOUT SPORT MODE>

63 to 64.

ENGINE USE

65.

UNDERDRIVE SOLENOID VALVE

66.

SECOND SOLENOID VALVE

67.

TRANSMISSION RANGE SWITCH: P

68 to 69.

ENGINE USE

70.

SOLENOID VALVE POWER SUPPLY

71.

ENGINE USE

72.

TRANSMISSION RANGE SWITCH: L 
<VEHICLES WITHOUT SPORT MODE>

73.

TRANSMISSION RANGE SWITCH: D

74.

TRANSMISSION FLUID 
TEMPERATURE SENSOR

75.

TRANSMISSION RANGE SWITCH: 2 
<VEHICLES WITHOUT SPORT MODE>

76.

ENGINE USE

77.

TRANSMISSION RANGE SWITCH: N

78 to 79.

ENGINE USE

80.

−

81.

ENGINE USE

82.

A/T CONTROL RELAY

83.

ENGINE USE

91 to 110. ENGINE USE
111.

INPUT SHAFT SPEED SENSOR

112.

OUTPUT SHAFT SPEED SENSOR

113.

ENGINE USE

121 to 153.ENGINE USE

AUTOMATIC TRANSAXLE

AUTOMATIC TRANSAXLE

23-4

SHIFT PATTERN CONTROL

M2230003000216

<F4A4B>
UPSHIFT PATTERN

NOTE: Within 2 -to- 3 and 3 -to- 4 movement ranges, the PCM adjusts shift points according to the driving 
conditions by memorizing the accelerator pedal stroke and braking timing.

DOWNSHIFT PATTERN

AC306491

50

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

100

0.5

1.0

2.0

3.0

4.0

4.5

0 (0)

50 (31)

100 (62)

150 (93)

200 (124)

THROTTLE
OPENING 
VOLTAGE (V)

THROTTLE
OPENING (%)

VEHICLE SPEED km/h (mph)

OUTPUT SHAFT SPEED r/min

AC

1

2

2

3

3

4

THICK LINE: STANDARD SHIFT PATTERN

2     3
MOVEMENT
RANGE

3     4
MOVEMENT
RANGE

AC306492

50

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

100

0.5

1.0

2.0

3.0

4.0

4.5

0 (0)

50 (31)

100 (62)

150 (93)

200 (124)

THROTTLE
OPENING 
VOLTAGE (V)

THROTTLE
OPENING (%)

VEHICLE SPEED km/h (mph)

OUTPUT SHAFT SPEED r/min

AB

1

2

1

2 (L)

2

3

2

3 (L, 2)

3

4 (L, 2, 3)

AUTOMATIC TRANSAXLE

AUTOMATIC TRANSAXLE

23-5

<F4A5A>
UPSHIFT PATTERN

NOTE: Within 2 -to- 3 and 3 -to- 4 movement ranges, the PCM adjusts shift points according to the driving 
conditions by memorizing the accelerator pedal stroke and braking timing.

DOWNSHIFT PATTERN

AC306570

THICK LINE: STANDARD SHIFT PATTERN

2     3
MOVEMENT
RANGE

3     4
MOVEMENT
RANGE

50

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

100

0.5

1.0

2.0

3.0

4.0

4.5

0 (0)

50 (31)

100 (62)

150 (93)

200 (124)

THROTTLE
OPENING 
VOLTAGE (V)

THROTTLE
OPENING (%)

VEHICLE SPEED km/h (mph)

OUTPUT SHAFT SPEED r/min

AC

1

2

2

3

3

4

AC306571

50

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

100

0.5

1.0

2.0

3.0

4.0

4.5

0 (0)

50 (31)

100 (62)

150 (93)

200 (124)

THROTTLE
OPENING 
VOLTAGE (V)

THROTTLE
OPENING (%)

VEHICLE SPEED km/h (mph)

OUTPUT SHAFT SPEED r/min

AB

1

2

1

2 (SPORT MODE)

2

3

2

3

3

4

 (SPORT MODE)

3

4

 (SPORT MODE)

AUTOMATIC TRANSAXLE

AUTOMATIC TRANSAXLE

23-6

DIAGNOSTIC FUNCTION

M2230010000133

ITEM

DIAGNOSTIC 
TROUBLE 
CODE

SERVICE DATA

ACTUATOR 
TEST

ITEM NO. DISPLAY

TP sensor

−

11

mV

−

Transmission fluid 
temperature sensor

Open circuit

15

15

°

C

−

Short circuit

16

Crankshaft position sensor Open circuit

21

21

r/min

−

Input shaft speed sensor

Short circuit/open circuit 22

22

r/min

−

Output shaft speed sensor Short circuit/open circuit 23

23

r/min

−

Stoplight switch

Short circuit

26

26

ON/OFF

−

Transmission range switch Open circuit

27

61

P/R/N/D/3
/2/L

−

Short circuit

28

LR solenoid valve

Short circuit/open circuit 31

31

%

01

UD solenoid valve

Short circuit/open circuit 32

32

%

02

2ND solenoid valve

Short circuit/open circuit 33

33

%

03

OD solenoid valve

Short circuit/open circuit 34

34

%

04

TCC solenoid valve

Short circuit/open circuit 36

36

%

06

Gear shift incomplete

1st

41

−

−

−

2nd

42

−

−

−

3rd

43

−

−

−

4th

44

−

−

−

Reverse

46

−

−

−

TCC solenoid valve

System defect

52

52

r/min

−

Clutch stuck on

53

−

A/T control relay

Ground short 
circuit/open circuit

54

54

V

12

Engine volumetric efficiency

−

57

%

−

Shift position

−

63

4th/3rd/2n
d/1st/REV.
/N/P

−

A/C compressor switch

−

65

ON/OFF

−

OD OFF signal

−

66

ON/OFF

−

Select switch <Vehicles with sport mode>

−

67

ON/OFF

−

Upshift switch <Vehicles with sport mode>

−

68

ON/OFF

−

Downshift switch <Vehicles with sport mode>

−

69

ON/OFF

−