Mitsubishi Outlander (2003+). Manual - part 200

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-95

STEP 14. 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 15.

NO : 

Repair the defective connector.

STEP 15. Check the harness between A/T control 
relay connector B-16X terminal No.2 and 
engine-A/T-ECU connector C-138 terminal 
No.127.

Check the output line for short 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

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>

AC309525

AB

Connector: B-16X

Front of 
vehicle

Relay box 
side

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-96

Code No.56: N range lamp system

OPERATION
If a fail-safe operation is activated during driving, the 
engine-A/T-ECU flashes the N range lamp at a 
frequency of 1 Hz to inform the driver.

diagnosis code set conditions
If the N range signal is OFF after the N range lamp 
illuminates (ON), it is judged that there is a 
short-circuit to earth or open circuit in the N range 
lamp, and code No. 56 is output.

Possible causes

•

Malfunction of the combination meter

•

Damaged harness wires and connectors

•

Malfunction of the engine-A/T-ECU

DIAGNOSIS

STEP 1. MUT-II/III diagnosis code.

Either of diagnosis codes 27 or 28 is set, inhibtor 
switch is defective.

Q: Are diagnosis codes 27 or 28 output?

YES <diagnosis code 27 is set> : 

Refer to 

diagnosis code 27: Inhibitor switch system 

P.23A-53

.

YES <diagnosis code 28 is set> : 

Refer to 

diagnosis code 28: Inhibitor switch system 

P.23A-61

.

NO : 

Go to Step 2.

STEP 2. Check the N range lamp.
(1) Turn the ignition switch to the ON position.
(2) Shift the selector lever to the N position.

Q: Does the N range lamp illuminate?

YES : 

Go to Step 10.

NO : 

Go to Step 3.

STEP 3. Check the N range lamp valve.
(1) Remove the combination meter. (Refer to 

GROUP 54A 

−

 Combination Meter Assembly 

Removal and Installation 

P.54A-72

.)

(2) Check the N range lamp valve.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Replace the valve.

ENGINE-
A/T-ECU

INHIBITOR
SWITCH

COMBINATION
METER

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue      
W : White     Y : Yellow     SB : Sky blue     BR : Brown 
O : Orange     GR : Gray     R : Red     P : Pink     V : Violet        

AC309569AC

N range lamp system circuit

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-97

STEP 4. Connector check: C-05 combination 
meter connector

Check for the contact with terminals.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the defective connector.

STEP 5. Measure the resistance at combination 
meter connector C-05.

Disconnect the connector, and measure the 
resistance between terminal 12 and earth at the 
wiring harness side.

OK: 2 

Ω

 or less

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Go to Step 6.

AC308769

AW

C-05 (L)

Connector: C-05

<RHD>

Harness side

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

AC308716

AT

C-05 (L)

Connector: C-05
<LHD>

Harness side

G

G

22

11

5

16

19

20

21

17

18

8

10 9

7 6

13

1514

12

2

4 3

1

AC308769

AW

C-05 (L)

Connector: C-05

<RHD>

Harness side

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

AC308716

AT

C-05 (L)

Connector: C-05
<LHD>

Harness side

G

G

22

11

5

16

19

20

21

17

18

8

10 9

7 6

13

1514

12

2

4 3

1

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-98

STEP 6. Check the harness between combination 
meter connector C-05 terminal No.12 and body 
earth.

Check the earth line for open circuit or short-circuit.

Q: Is the check result normal?

YES : 

Go to Step 10.

NO : 

Repair the wiring harness.

STEP 7. Measure the voltage at combination 
meter connector C-05.

(1) Disconnect the connector, and measure the 

voltage between terminal 2 and earth at the 
wiring harness side.

(2) Turn the ignition switch to the ON position.
(3) Shift the selector lever to the N position.

OK: System voltage

Q: Is the check result normal?

YES : 

Check the combination meter, and replace if 

necessary.

NO : 

Go to Step 8.

AC308769

AW

C-05 (L)

Connector: C-05

<RHD>

Harness side

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

AC308716

AT

C-05 (L)

Connector: C-05
<LHD>

Harness side

G

G

22

11

5

16

19

20

21

17

18

8

10 9

7 6

13

1514

12

2

4 3

1

AC308769

AW

C-05 (L)

Connector: C-05

<RHD>

Harness side

11

22

10

21

9

20

8

19

7

18

6

17

5

16

4

15

3

14

2

13

1

12

AC308716

AT

C-05 (L)

Connector: C-05
<LHD>

Harness side

G

G

22

11

5

16

19

20

21

17

18

8

10 9

7 6

13

1514

12

2

4 3

1