Mitsubishi Colt Ralliart. Manual — part 195

TROUBLESHOOTING <CVT>

CVT

23A-123

DATA LIST REFERENCE TABLE

M1231208100115

Data
list No.

Check item

Inspection conditions

Normal condition

01

Crank angle sensor

• Engine: Idling

• Selector lever

position: P

Accelerator pedal: Fully
closed

600

− 800 r/min

Accelerator pedal:
Depressed

Gradually increases
from the above
value.

02

Turbine speed
sensor

• Engine: Idling

• Selector lever

position: P

Accelerator pedal: Fully
closed

600

− 800 r/min

03

Primary speed
sensor

During driving except for at start and stop.

Value equal to
turbine speed is
indicated.

04

Secondary speed
sensor

During driving except
for at start and stop.

Constant driving at 50 km/h
on flat road.

2,200

− 2,400 r/min

06

Accelerator pedal
position sensor
(APS)

• Ignition switch: ON

• Selector lever

position: P

Accelerator pedal: Fully
closed

800

− 1,200 mV

Accelerator pedal:
Depressed

Gradually increases
from the above
value.

Accelerator pedal: Fully
open

4,000 mV or more

08

CVT fluid
temperature sensor

Driving after engine
has warmed up

Increase CVT fluid
temperature in the range of
45

− 100°C during driving for

over 15 minutes.

Gradually increases
to 45

− 100°C

09

Line pressure sensor

• Engine: Idling

• Selector lever

position: P

Accelerator pedal: Fully
closed

0.6

− 1.5 MPa

10

Damper clutch
amount of slippage

Engine: Idling

Depress brake pedal to shift
selector lever to N to D.

Less than 20

− 408

r/min

During driving

Constant driving at 50 km/h
on flat road.

Less than 40 r/min

11

Primary pressure
sensor

• Engine: Idling

• Selector lever

position: P

Accelerator pedal: Fully
closed

0

− 0.6 MPa

12

Gear ratio

• Engine: Idling

• Selector lever

position: P

Accelerator pedal: Fully
closed

2.313

14

Damper clutch
control solenoid
valve duty ratio

Parked at idle speed

→

Driving

0-Start

→ Constant driving at

50 km/h on flat road.

0% to 35% or more

15

Shift control solenoid
valve duty ratio

During driving

Selector lever position: D to
Ds

Value increases
momentarily

Selector lever position: Ds to
D

Value decrease
momentarily

Main

Index

Group

TOC

TROUBLESHOOTING <CVT>

CVT

23A-124

LEARNED VALUE

CVT-related learned values can be seen by selecting
these items.

Data list No.

Item

00 to 17, 0A to 0F

Lock-up control learned value

18 to 59, 1A to 1F, 2A to 2F, 3A to 3F, 4A to 4F, 5A to 5D

Line pressure control learned value

5E, 5F, 60 to 71, 6A to 6F

N to D shift duty learned value

72 to 85, 7A to 7F

N to R shift duty learned value

86 to 99, 8A to 7F

N to D shift time learned value

9A to 9F, A0 to A9, AA to AD

N to R shift time learned value

AE

TPS learned value

AF, B0 to B6

Shift control learned value

16

Line pressure control
solenoid valve duty
ratio

Engine: Idling

70

− 90%

17

Clutch pressure
control solenoid
valve duty ratio

Engine: Idling

• Depress brake pedal to

shift N to R

• Depress brake pedal to

shift N to D

99.6%

→ 0%

24

System voltage

Ignition switch: ON

System voltage

25

Relay voltage

Ignition switch: ON

System voltage

26

Inhibitor switch

• Ignition switch: ON

• Engine: Stopped

Selector lever position: P

P

Selector lever position: R

R

Selector lever position: N

N

Selector lever position: D

D

Selector lever position: Ds

DS

Selector lever position: L

L

33

Stop lamp switch

• Ignition switch: ON

• Engine: Stopped

Brake pedal: Depressed

ON

Brake pedal: Released

OFF

Data
list No.

Check item

Inspection conditions

Normal condition

Main

Index

Group

TOC

TROUBLESHOOTING <CVT>

CVT

23A-125

ACTUATOR TEST JUDGMENT VALUE

M1231208200112

Item
No.

Inspection item

Test description

Inspection condition Normal status

01

Line pressure control
solenoid valve

• Actuate solenoid

valve indicated by
M.U.T.-III for 5
seconds at duty
ratio of 50%.

• Other remaining

solenoid valves are
not ON.

• Ignition switch: ON

• Selector lever

position: P

• Engine: Stopped

• TPS voltage: 1.3 V

or less

When solenoid valve
is actuated, operating
sound is audible.

02

Shift control solenoid
valve

03

Damper clutch control
solenoid valve

04

Clutch pressure control
solenoid valve

11

CVT control relay

Switch off CVT control
(solenoid) relay for 3
seconds.

Data list item No.25

• During test: 0 V

• Normal: System

voltage (V)

CHECK AT ENGINE-CVT-ECU
TERMINALS

M1231229100143

1. Disconnect the engine-CVT-ECU connector, and

connect the special tool Power plant ECU check
harness (MB991987) inbetween.

2. Measure the voltage between each of the special

tool Check harness connector terminals and
earth (No.72 or 74).

6

4

2

5

3

1

9

7

8

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

L

77

78

79

80

81

82

83

84

92

93

94

95

96

97

98

99

85

86

87

88

89

90

91

100

101

102

103

104

105

106

115

116

117

118

119

120

121

107

108

109

110

111

112

113

114

130

131

132

133

134

135

136

122

123

124

125

126

127

128

129

72 71

74 73

76 75

R

AC402960

A-08

A-114

Special tool Check harness (MB991987) connector

AC

Terminal
No.

Check item

Inspection condition

Standard value

1

Damper clutch control
solenoid valve

• Engine: Idling

• Selector lever position: P

System voltage

2

Shift control solenoid valve

• Engine: Idling

• Selector lever position: P

Approximately 11
V

3

Clutch pressure control
solenoid valve

• Engine: Idling

• Selector lever position: N → D or N → R

Approximately
10 V

→ System

voltage

4

Line pressure control
solenoid valve

• Engine: Idling

• Selector lever position: P

10

− 11 V

11

Line pressure sensor

• Engine: Idling

• Selector lever position: P

• Accelerator pedal: Full closed

0.9

− 1.4 V

Main

Index

Group

TOC

TROUBLESHOOTING <CVT>

CVT

23A-126

18

CVT fluid temperature
sensor

• Ignition switch: ON

• CVT fluid temperature: 20°C

3.8

− 4.0 V

• Ignition switch: ON

• CVT fluid temperature: 40°C

3.2

− 3.4 V

• Ignition switch: ON

• CVT fluid temperature: 80°C

1.7

− 1.9 V

19

CVT fluid temperature
sensor earth

Always

1 V or less

26

Line pressure sensor earth

Always

1 V or less

41

Primary pressure sensor

• Engine: Idling

• Selector lever position: P

• Accelerator pedal: Full closed

0.5

− 0.9 V

42

Primary pressure sensor
earth

Always

1 V or less

43

Primary speed sensor

• Selector lever position: D

• Constant driving at 50 km/h

• Measure between terminals 43 and 60 with

an oscilloscope

Refer to

P.23A-128

,

Inspection
Procedure Using
an Oscilloscope.

44

Turbine speed sensor

• Selector lever position: D

• Constant driving at 50 km/h

• Measure between terminals 44 and 60 with

an oscilloscope

Refer to

P.23A-128

,

Inspection
Procedure Using
an Oscilloscope.

45

Secondary speed sensor

• Selector lever position: D

• Constant driving at 50 km/h

• Measure between terminals 45 and 60 with

an oscilloscope

Refer to

P.23A-128

,

Inspection
Procedure Using
an Oscilloscope.

46

Inhibitor switch: P

• Ignition switch: ON

• Selector lever position: P

System voltage

• Ignition switch: ON

• Selector lever position: Other than above

1 V or less

47

Inhibitor switch: L

• Ignition switch: ON

• Selector lever position: L

System voltage

• Ignition switch: ON

• Selector lever position: Other than above

1 V or less

48

Inhibitor switch: R

• Ignition switch: ON

• Selector lever position: R

System voltage

• Ignition switch: ON

• Selector lever position: Other than above

1 V or less

58

Primary pressure sensor
power supply

Ignition switch: ON

4.9

− 5.1 V

59

Line pressure sensor power
supply

Ignition switch: ON

4.9

− 5.1 V

60

Speed sensor earth

Always

1 V or less

Terminal
No.

Check item

Inspection condition

Standard value

Main

Index

Group

TOC