Mitsubishi Outlander (2003+). Manual — part 197

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-83

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

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

connector C-138 terminal No.130 and earth.

OK: 6

−

9 V

Q: Is the check result normal?

YES :

Go to Step 8.

NO :

Go to Step 6.

STEP 6. Connector check: C-138 engine-A/T-ECU
connector

Check for the contact with terminals.

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Repair the defective connector.

AC309479

Engine-A/T-ECU

Harness side

C-138 (GR)

Engine-A/T-ECU

C-138 (GR)

124 123

130

131

132

133
141 140 139 138
146 145

129
137

128
136

127126

135
143

121
125
134
142

144

122

AC

Connector: C-138 <RHD>

Connector: C-138 <LHD>

AC309479

Engine-A/T-ECU

Harness side

C-138 (GR)

Engine-A/T-ECU

C-138 (GR)

124 123

130

131

132

133
141 140 139 138
146 145

129
137

128
136

127126

135
143

121
125
134
142

144

122

AC

Connector: C-138 <RHD>

Connector: C-138 <LHD>

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-84

STEP 7. Check the harness between A/T control
solenoid valve assembly connector B-34 terminal
No.7 and engine-A/T-ECU connector C-138
terminal No.130.

Check the output line for short or open circuit.

Q: Is the check result normal?

YES :

Go to Step 8.

NO :

Repair the wiring harness.

STEP 8. MUT-II/III actuator test

Item 06: Damper clutch solenoid valve

OK: Operating sound can be heard.

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 9. Connector check: B-34 A/T control
solenoid valve assembly connector

Check for the contact with terminals.

Q: Is the check result normal?

YES :

Go to Step 10.

NO :

Repair the defective connector.

STEP 10. Measure the resistance at A/T control
solenoid valve assembly connector B-34.

Disconnect the connector, and measure the
resistance between terminal No.7 and No.10 at the
solenoid valve side.

OK: 2.7

−

3.4

Ω

(A/T fluid temperature 20

°

C)

Q: Is the check result normal?

YES :

Go to Step 11.

NO :

Check the solenoid valve harness.

AC309511

B-34 (GR)

Harness side

AB

Connector: B-34

AC309479

Engine-A/T-ECU

Harness side

C-138 (GR)

Engine-A/T-ECU

C-138 (GR)

124 123

130

131

132

133
141 140 139 138
146 145

129
137

128
136

127126

135
143

121
125
134
142

144

122

AC

Connector: C-138 <RHD>

Connector: C-138 <LHD>

AC309511

B-34 (GR)

Harness side

AB

Connector: B-34

AC309511AC

B-34 (GR)

Connector: B-34

Sensor side

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-85

STEP 11. Connector check: B-16X A/T control
relay connector

Check for the contact with terminals.

Q: Is the check result normal?

YES :

Go to Step 12.

NO :

Repair the defective connector.

STEP 12. Check the harness between A/T control
solenoid valve assembly connector B-34 terminal
No.10 and A/T control relay connector B-16X
terminal No.1.

Check the power supply line for short or open circuit.

Q: Is the check result normal?

YES :

Go to Step 8.

NO :

Repair the wiring harness.

AC309525

AB

Connector: B-16X

Front of
vehicle

Relay box
side

AC309511

B-34 (GR)

Harness side

AB

Connector: B-34

AC309525

AB

Connector: B-16X

Front of
vehicle

Relay box
side

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-86

Code No.41 (1st), 42 (2nd), 43 (3rd), 44 (4th), 46 (reverse): Gear incorrect ratio

OPERATION
The engine-A/T-ECU detects the current gear/speed
according to the output signals from the input and
output shaft speed sensor.

diagnosis code set conditions
If the output from the output shaft speed sensor
multiplied by the gear ratio is not the same as the
output from the input shaft speed sensor after
completing of shifting, the corresponding diagnosis
code is output.
If each diagnosis code is output 4 times, the
transmission is fixed in 3rd as a fail-safe measure.

Possible causes

•

Malfunction of input shaft speed sensor

•

Malfunction of output shaft speed sensor

•

Damaged harness wires and connectors

•

Malfunction of the engine-A/T-ECU

•

Malfunction of solenoid valve

•

Malfunction of underdrive clutch retainer

•

Malfunction of valve body

•

Malfunction of transfer drive gear or driven gear

•

Malfunction of low-reverse brake system (for
diagnosis codes 41, 46)

•

Malfunction of underdrive clutch system (for
diagnosis codes 41, 42, 43)

•

Malfunction of second brake system (for
diagnosis codes 42, 44)

•

Malfunction of overdrive clutch system (for
diagnosis codes 43, 44)

•

Malfunction of reverse clutch system (for
diagnosis code 46)

•

Malfunction of one-way clutch system (for
diagnosis code 41)

DIAGNOSIS

STEP 1. MUT-II/III diagnosis code

Either of diagnosis codes 41, 42, 43, 44 or 46 is
output, the input shaft speed sensor or output shaft
speed sensor is defective.

Q: Are diagnosis codes 22 or 23 output?

YES <diagnosis code 22 is output> :

Refer to

diagnosis code 22 input shaft speed sensor
system

P.23A-28

.

YES <diagnosis code 23 is output> :

Refer to

diagnosis code 23 output shaft speed
sensor system

P.23A-37

.

NO :

Go to Step 2.

STEP 2. MUT-II/III diagnosis code

Either of diagnosis codes 41, 42, 43, 44 or 46 is
output, the corresponding solenoid valve is defective.

Q: Is either of diagnosis code 31, 32, 33, 34 output?

YES <diagnosis code 31 is output> :

Refer to

diagnosis code 31: Low-reverse solenoid
valve system

P.23A-65

.

YES <diagnosis code 32 is output> :

Refer to

diagnosis code 32: Underdrive solenoid
valve system

P.23A-70

.

YES <diagnosis code 33 is output> :

Refer to

diagnosis code 33: Second solenoid valve
system

P.23A-74

.

YES <diagnosis code 34 is output> :

Refer to

diagnosis code 34: Overdrive solenoid valve
system

P.23A-78

.

NO :

Go to Step 3.