Mitsubishi Eclipse. Manual — part 844

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-385

PCM TERMINAL VOLTAGE REFERENCE CHART FOR TRANSAXLE OPERATION

M1231008400275

AC305281AB

C-50 <2.4L ENGINE> OR

C-52 <3.0L ENGINE>

C-54 <2.4L ENGINE> OR

C-55 <3.0L ENGINE>

C-57 <2.4L ENGINE> OR

C-59 <3.0L ENGINE>

C-61 <2.4L ENGINE> OR

C-63 <3.0L ENGINE>

TERMINAL
NO.

INSPECTION ITEMS

INSPECTION REQUIREMENT

NORMAL CONDITION

45

Crankshaft position
sensor

Engine: Idling

1.5

− 2.5 V

46

TP sensor supplied
voltage

Ignition switch: ON

4.9

− 5.1 V

50

A/T control relay

Ignition switch: LOCK (OFF)

1 V or less

Ignition switch: ON

10

− 12 V

57

TP sensor ground

Always

0.5 V or less

75

Auto-cruise signal

Ignition switch: ON

Battery positive voltage

76

Ground

Always

1 V or less

77

Solenoid valve power
supply

Ignition switch: LOCK (OFF)

1 V or less

Ignition switch: ON

Battery positive voltage

78

TP sensor

Ignition switch: ON (check
for smooth voltage increase
as throttle is moved from idle
position to wide open throttle

Idle

0.6

− 0.8 V

Wide open
throttle

4.5

− 5.5 V

80

Vehicle speed signal

• Measure between terminals 80 and

ground with an oscilloscope.

• Engine: 2,000 r/min

• Selector lever position: 3 (3rd gear)

<Vehicles without sport mode>, Sport
mode (3rd gear) <Vehicles with sport
mode>

Refer to

P.23A-389

,

Inspection Procedure
Using an Oscilloscope.

88

Ground

Always

1 V or less

89

Solenoid valve power
supply

Ignition switch: LOCK (OFF)

1 V or less

Ignition switch: ON

Battery positive voltage

97

Ground

Always

1 V or less

101

Transmission range
switch: P

• Ignition switch: ON

• Selector lever position: P

Battery positive voltage

• Ignition switch: ON

• Selector lever position: Other than

above

1 V or less

102

Transmission range
switch: D

• Ignition switch: ON

• Selector lever position: D

Battery positive voltage

• Ignition switch: ON

• Selector lever position: Other than

above

1 V or less

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-386

103

Input shaft speed
sensor

• Measure between terminals 16 and

103 with an oscilloscope.

• Engine: 2,000 r/min

• Gear range: 3rd gear

Refer to

P.23A-389

,

Inspection Procedure
Using an Oscilloscope.

104

Output shaft speed
sensor

• Measure between terminals 16 and

104 with an oscilloscope.

• Engine: 2,000 r/min

• Gear range: 3rd gear

Refer to

P.23A-389

,

Inspection Procedure
Using an Oscilloscope.

105

Shift indicator light: 1st
<Vehicles with sport
mode>

• Engine: Idling

• Gear range: 1st gear

Battery positive voltage

• Engine: Idling

• Gear range: other than 1st gear

0

− 0.9 V

106

Second solenoid valve

• Gear range: 2nd gear

Battery positive voltage

• Engine: Idling

• Selector lever position: P

6

− 9 V

107

Torque converter clutch
solenoid valve

• Engine: Idling

• Gear range: 1st gear

Battery positive voltage

108

Transmission range
switch: R

• Ignition switch: ON

• Selector lever position: R

Battery positive voltage

• Ignition switch: ON

• Selector lever position: Other than

above

1 V or less

109

Transmission range
switch: 3 <Vehicles
without sport mode>

• Ignition switch: ON

• Selector lever position: 3

Battery positive voltage

• Ignition switch: ON

• Selector lever position: Other than

above

1 V or less

Select switch <Vehicles
with sport mode>

• Ignition switch: ON

• Selector lever position: Sport mode

Battery positive voltage

• Ignition switch: ON

• Selector lever position: Other than

above

1 V or less

110

Transmission range
switch: L <Vehicles
without sport mode>

• Ignition switch: ON

• Selector lever operation: L

Battery positive voltage

• Ignition switch: ON

• Selector lever operation: Other than

above

1 V or less

Select switch (Down)
<Vehicles with sport
mode>

• Ignition switch: ON

• Selector lever operation: Downshift and

hold the selector lever

Battery positive voltage

• Ignition switch: ON

• Selector lever operation: Other than

above

1 V or less

TERMINAL
NO.

INSPECTION ITEMS

INSPECTION REQUIREMENT

NORMAL CONDITION

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-387

117

Shift indicator light: 3rd
<Vehicles with sport
mode>

• Engine: Idling

• Gear range: 3rd gear

Battery positive voltage

• Engine: Idling

• Gear range: other than 3rd gear

0

− 0.9 V

118

Shift indicator light: 2 nd
<Vehicles with sport
mode>

• Engine: Idling

• Gear range: 2nd gear

Battery positive voltage

• Engine: Idling

• Gear range: other than 2nd gear

0

− 0.9 V

120

Under drive solenoid
valve

• Engine: Idling

• Gear range: 1st gear

Battery positive voltage

• Engine: Idling

• Selector lever position: P

6

− 9 V

121

Transmission range
switch: N

• Ignition switch: ON

• Selector lever position: N

Battery positive voltage

• Ignition switch: ON

• Selector lever position: Other than

above

1 V or less

122

Park/Neutral position
switch: 2 <Vehicles
without sport mode>

• Ignition switch: ON

• Selector lever operation: 2

Battery positive voltage

• Ignition switch: ON

• Selector lever operation: Other than

above

1 V or less

Select 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

123

Stoplight switch

• Ignition switch: ON

• Brake pedal: Depressed

Battery positive voltage

• Ignition switch: ON

• Brake pedal: Released

1 V or less

124

Transmission fluid
temperature sensor

• Ignition switch: ON

• Transmission fluid temperature: 20°C

(68

°F)

3.8

− 4.0 V

• Ignition switch: ON

• Transmission fluid temperature: 40°C

(104

°F)

3.2

− 3.4 V

• Ignition switch: ON

• Transmission fluid temperature: 80°C

(176

°F)

1.7

− 1.9 V

128

Shift indicator light: 4th
<Vehicles with sport
mode>

• Engine: Idling

• Gear range: 4th gear

Battery positive voltage

• Engine: Idling

• Gear range: other than 4th gear

0

− 0.9 V

TERMINAL
NO.

INSPECTION ITEMS

INSPECTION REQUIREMENT

NORMAL CONDITION

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-388

PCM TERMINAL RESISTANCE AND CONTINUITY INSPECTION CHART

M1231013400185

129

Low-reverse solenoid
valve

• Engine: Idling

• Selector lever position: P

Battery positive voltage

• Engine: Idling

• Gear range: 2nd gear

6

− 9 V

130

Overdrive solenoid
valve

• Gear range: 3rd gear

Battery positive voltage

• Engine: Idling

• Selector lever position: P

6

− 9 V

TERMINAL
NO.

INSPECTION ITEMS

INSPECTION REQUIREMENT

NORMAL CONDITION

AC305534AB

C-50 <2.4L ENGINE> OR

C-52 <3.0L ENGINE>

C-54 <2.4L ENGINE> OR

C-55 <3.0L ENGINE>

C-57 <2.4L ENGINE> OR

C-59 <3.0L ENGINE>

C-61 <2.4L ENGINE> OR

C-63 <3.0L ENGINE>

TERMINAL
NO.

INSPECTION ITEM

NORMAL CONDITION (CHECK CONDITION)

57

− 124

Transmission fluid temperature
sensor

16.7

− 20.5 kΩ [at 0°C (32°F)]

7.3

− 8.9 kΩ [at 20°C (68°F)]

3.4

− 4.2 kΩ [at 40°C (104°F)]

1.9

− 2.2 kΩ [at 60°C (140°F)]

1.0

− 1.2 kΩ [at 80°C (176°F)]

0.57

− 0.69 kΩ [at 100°C (212°F)]