Mitsubishi Galant 9G. Manual — part 567

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-346

TFT
SENSOR

15

Transmission fluid
temperature sensor

Warmed up

Drive for 15 minutes or
more so that the
transmission fluid
temperature becomes
70

− 80°C (158 −

176

°F)

Gradually rises
to 70

− 80°C

(158

− 176°F)

TP SENSOR 11

TP sensor

• Ignition switch:

ON

• Engine: Stopped

• Transmission

range: P

Accelerator pedal:
Release

300

− 700 mV

Accelerator pedal:
Depressed

Gradually rises
from the above
value

Accelerator pedal:
Fully depressed

4,000 mV or
more

TR SWITCH

61

Transmission range
switch

Ignition switch: ON

Transmission range: P P
Transmission range: R R
Transmission range: N N
Transmission range: D D
Transmission range: 3
<Vehicles without
sport mode>

3

Transmission range: 2
<Vehicles without
sport mode>

2

Transmission range: L
<Vehicles without
sport mode>

L

MUT-III
SCAN TOOL
DISPLAY

ITEM
NO.

INSPECTION ITEM INSPECTION

REQUIREMENT

NORMAL
CONDITION

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-347

U/D SOL
DUTY

32

Underdrive solenoid
valve duty %

Transmission range:
L <Vehicles without
sport mode> or
Sport mode
<Vehicles with sport
mode>

Driving at constant
speed of 10 km/h (6.2
mph) in 1st gear

0%

Transmission range:
2 <Vehicles without
sport mode> or
Sport mode
<Vehicles with sport
mode>

Driving at constant
speed of 30 km/h (19
mph) in 2nd gear

0%

Transmission range:
3 <Vehicles without
sport mode> or
Sport mode
<Vehicles with sport
mode>

Driving at constant
speed of 50 km/h (31
mph) in 3rd gear

0%

Transmission range:
D <Vehicles without
sport mode> or
Sport mode
<Vehicles with sport
mode>

Driving at constant
speed of 50 km/h (31
mph) in 4th gear

100%

MUT-III
SCAN TOOL
DISPLAY

ITEM
NO.

INSPECTION ITEM INSPECTION

REQUIREMENT

NORMAL
CONDITION

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-348

ACTUATOR TEST REFERENCE TABLE

M1231008200408

MUT-III
SCAN TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

TEST CONTENT

INSPECTION
REQUIREMENT

NORMAL
CONDITION

1st SIFT LMP 07

Shift position
indicator light (1st)

Illuminate each indicator
light for three seconds to
the signal from the scan
tool MB991958 (MUT-III
sub assembly).

• Ignition

switch: ON

• Transmission

range: P

• Engine:

stopped

• Throttle

opening
voltage: Less
than one volt

Shift indicator light
illuminates.

2nd SIFT
LMP

08

Shift position
indicator light (2
nd)

2ND SOL

03

Second solenoid
valve

Drive the solenoid valve
specified by the scan tool
MB991958 (MUT-III sub
assembly) at 50% duty
for five seconds. No
other solenoid valve
should be energized.

The solenoid
should click when
activated

3rd SIFT LMP 09

Shift position
indicator light (3rd)

illuminate each indicator
light for three seconds to
the signal from the scan
tool MB991958 (MUT-III
sub assembly).

Shift indicator light
illuminates.

4th SIFT LMP 10

Shift position
indicator light (4th)

A/T RELAY

12

A/T control relay

Actuator test in scope
mode, data list No.54.
Control relay is OFF for
three seconds.

Data list No.54

• During test: 0 V

• Normal: Battery

positive voltage
[12 V]

L/R SOL

01

Low-reverse
solenoid valve

Drive the solenoid valve
specified by the scan tool
MB991958 (MUT-III sub
assembly) at 50% duty
for five seconds. No
other solenoid valve
should be energized.

The solenoid
should click when
activated

O/D SOL

04

Overdrive
solenoid valve

TCC SOL

06

Torque converter
clutch solenoid
valve

U/D SOL

02

Underdrive
solenoid valve

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-349

INVECS-II CANCEL COMMAND

M1231009500286

PCM TERMINAL VOLTAGE REFERENCE CHART FOR TRANSAXLE OPERATION

M1231008400305

1. Disconnect the PCM connectors, and connect

special tool MB991923 in between.

2. Measure the voltages between each check

connector terminals of special tool MB991923 and
ground terminals 4 or 7.

MUT-III
SCAN
TOOL
DISPLAY

ITEM
NO.

ITEM

CONTENT

REMARKS

Std. SIFT
PATN

14

Standard
shift pattern

Stops the INVECS-II
control and shifts gears
according to the
standard shift pattern.

Use this function when performing procedure 8 in
the road tests. (Refer to

P.23A-21

)

The INVECS-II cancel command will last until the
ignition switch is turned from "ON" to
"LOCK"(OFF) or vice versa.

AC209259

4 3 2 1

7 6 5

8 9

11 10

14 13 12

18 17 16 15

25

21

24 23 22

29 28 27 26

34 33 32 31 30

38 37 36 35

43 42 41 40 39

55

56

54 53 52 51

57

62 61 60 59 58

63

69 68 67 66 65 64

70

75 74 73 72 71

76

82 81 80 79 78 77

83

104

96

94

95

93 92 91

99 98 97

103 102 101 100

108 107 106 105

113 112 111 110 109

127 126 125 124 123 122 121

133 132 131 130 129 128

140 139 138 137 136 135 134

146 145 144 143 142 141

153 152 151 150 149 148 147

AC

SPECIAL TOOL-POWER PLANT ECU CHECK HARNESS (MB991923) CONNECTOR: COMPONENT SIDE

33-PIN
CONNECTOR
(PCM CONNECTOR
B-23)

23-PIN
CONNECTOR
WITH RED TAPE
(PCM CONNECTOR
B-22)

33-PIN
CONNECTOR
(PCM CONNECTOR
B-21)

23-PIN
CONNECTOR
WITHOUT RED TAPE
(PCM CONNECTOR
B-20)

18-PIN
CONNECTOR
(PCM CONNECTOR
B-19)

TERMINAL
NO.

INSPECTION ITEM

INSPECTION REQUIREMENT

NORMAL CONDITION

4

Ground

Always

1 V or less

7

Ground

Always

1 V or less

9

Stoplight switch

• Ignition switch: ON

• Brake pedal: Depressed

Battery positive voltage

• Ignition switch: ON

• Brake pedal: Released

1 V or less

14

Vehicle speed signal

• Measure between terminal 14 and 4

with an oscilloscope.

• Engine: 2,000 r/min

• Gear range: 3rd gear

Refer to

P.23A-352

,

Inspection Procedure
Using an Oscilloscope.

32

Shift switch (up)
<Vehicles with sport
mode>

• Ignition switch: ON

• Selector lever operation: Upshift and

hold the selector lever

Battery positive voltage

• Ignition switch: ON

• Selector lever operation: Other than

above

1 V or less