Mitsubishi Outlander (2003+). Manual — part 182

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-23

STEP 12. Connector check: C-142
engine-A/T-ECU connector

Check for the contact with terminals.

Q: Is the check result normal?

YES :

Go to Step 13.

NO :

Repair the defective connector.

STEP 13. Check the harness between A/T control
solenoid valve assembly connector B-34 terminal
No.1 and engine-A/T-ECU connector C-142
terminal No.119.

Check the output line for short-circuited or open
circuit.

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Repair the wiring harness.

AC309479

Engine-A/T-ECU

Harness side

Engine-A/T-ECU

C-142 (GR)

C-142 (GR)

104

93

95

98

92

94

96

97

99

100

91

103
110

111

101

108

109

105

107

106

102

115

117

112

118

116

114 113

120 119

AF

Connector: C-142 <LHD>

Connector: C-142 <RHD>

AC309511

B-34 (GR)

Harness side

AB

Connector: B-34

AC309479

Engine-A/T-ECU

Harness side

Engine-A/T-ECU

C-142 (GR)

C-142 (GR)

104

93

95

98

92

94

96

97

99

100

91

103
110

111

101

108

109

105

107

106

102

115

117

112

118

116

114 113

120 119

AF

Connector: C-142 <LHD>

Connector: C-142 <RHD>

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-24

STEP 14. Check the harness between A/T control
solenoid valve assembly connector B-34 terminal
No.2 and engine-A/T-ECU connector C-142
terminal No.96.

Check the earth line for open circuit.

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Repair the wiring harness.

AC309511

B-34 (GR)

Harness side

AB

Connector: B-34

AC309479

Engine-A/T-ECU

Harness side

Engine-A/T-ECU

C-142 (GR)

C-142 (GR)

104

93

95

98

92

94

96

97

99

100

91

103
110

111

101

108

109

105

107

106

102

115

117

112

118

116

114 113

120 119

AF

Connector: C-142 <LHD>

Connector: C-142 <RHD>

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-25

Code No.16: A/T fluid temperature sensor system (short circuit)

A/T FLUID TEMPERATURE SENSOR SYSTEM
CIRCUIT
Refer to

P.23A-19

.

OPERATION
Refer to

P.23A-19

.

DIAGNOSIS CODE SET CONDITION
If the A/T fluid temperature sensor output voltage has
been approximately 0 V for at least one second
(indicating abnormally high oil temperature), it
indicates that the A/T fluid temperature sensor circuit
is shorted and diagnosis code No.16 will be set.

POSSIBLE CAUSES

•

Malfunction of the A/T fluid temperature sensor

•

Damaged harness wires and connectors

•

Malfunction of the engine-A/T-ECU

DIAGNOSIS

STEP 1. MUT-II/III data list

Item 15: A/T fluid temperature sensor (Refer to Data
List Table

P.23A-133

).

Q: Is the check result normal?

YES :

Intermittent malfunction (Refer to GROUP

00

−

How to Cope with Intermittent

Malfunction

P.00-6

).

NO :

Go to Step 2.

STEP 2. Connector check: B-34 A/T control
solenoid valve assembly

Check for the contact with terminals.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Repair the defective connector.

STEP 3. Measure the voltage at A/T control
solenoid valve assembly connector B-34.

(1) Disconnect the connector, and measure the

voltage between terminal 1 and earth at the
wiring harness side.

(2) Turn the ignition switch to the ON position.

OK: 4.5

−

4.9 V

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Go to Step 6.

STEP 4. Measure the resistance at A/T control
solenoid valve assembly connector B-34.

Disconnect the connector, and measure the
resistance between terminal 1 and 2 at the sensor
side.

OK:

•

16.7

−

20.5 k

Ω

(at 0

°

C)

•

7.3

−

8.9 k

Ω

(at 20

°

C)

•

3.4

−

4.2 k

Ω

(at 40

°

C)

•

1.9

−

2.2 k

Ω

(at 60

°

C)

•

1.0

−

1.2 k

Ω

(at 80

°

C)

•

0.57

−

0.69 k

Ω

(at 100

°

C)

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Replace the A/T fluid temperature sensor.

AC309511AC

B-34 (GR)

Connector: B-34

Sensor side

AC309511AC

B-34 (GR)

Connector: B-34

Sensor side

AC309511AC

B-34 (GR)

Connector: B-34

Sensor side

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-26

STEP 5. MUT-II/III data list

Item 15: A/T fluid temperature sensor (Refer to Data
List Table

P.23A-133

).

Q: Is the check result normal?

YES :

Intermittent malfunction (Refer to GROUP

00

−

How to Cope with Intermittent

Malfunction

P.00-6

).

NO :

Replace the engine-A/T-ECU.

STEP 6. Measure the voltage at engine-A/T-ECU
connector C-142.
(1) Connect A/T control solenoid valve assembly

connector B-34.

(2) Turn the ignition switch to the ON position.

(3) Measure the voltage between engine-A/T-ECU

connector C-142 terminal No.119 and earth.

OK:

•

3.8

−

4.0 V (at 20

°

C)

•

3.2

−

3.4 V (at 40

°

C)

•

1.7

−

1.9 V (at 80

°

C)

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Go to Step 7.

STEP 7. Connector check: C-142 engine-A/T-ECU
connector

Check for the contact with terminals.

Q: Is the check result normal?

YES :

Go to Step 8.

NO :

Repair the defective connector.

AC309479

Engine-A/T-ECU

Harness side

Engine-A/T-ECU

C-142 (GR)

C-142 (GR)

104

93

95

98

92

94

96

97

99

100

91

103
110

111

101

108

109

105

107

106

102

115

117

112

118

116

114 113

120 119

AF

Connector: C-142 <LHD>

Connector: C-142 <RHD>

AC309479

Engine-A/T-ECU

Harness side

Engine-A/T-ECU

C-142 (GR)

C-142 (GR)

104

93

95

98

92

94

96

97

99

100

91

103
110

111

101

108

109

105

107

106

102

115

117

112

118

116

114 113

120 119

AF

Connector: C-142 <LHD>

Connector: C-142 <RHD>