Mitsubishi Outlander (2003+). Manual — part 205

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-115

OPERATION
The shift switch assembly detects the shift range
(sport mode) which the driver has selected, and
sends the information to the engine-A/T-ECU.

COMMENTS ON TROUBLE SYMPTOM
The cause is probably a malfunction of the shift
switch and engine-A/T-ECU.

Possible causes

•

Malfunction of shift switch assembly

•

Damaged harness wires and connectors

•

Malfunction of the engine-A/T-ECU

ENGINE-
A/T-ECU

IGNITION
SWITCH (IG1)

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

SHIFT
SWITCH
ASSEMBLY

SHIFT
SWITCH

SELECT
SWITCH

COMBINATION
METER

INHIBITOR
SWITCH

AC309570AC

Shift switch system circuit <LHD>

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-116

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. MUT-II/III data list

•

Item 67: Select switch

•

Item 68: Upshift switch

•

Item 69: Downshift switch

Check the above data list (Refer to data list reference
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 <"NG" for all items> :

Go to Step 3.

NO <"NG" for items 68 and 69> :

Go to Step 5.

NO <"NG" for item 67> :

Go to Step 10.

NO <"NG" for item 68> :

Go to Step 19.

NO <"NG" for item 69> :

Go to Step 22.

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-117

STEP 3. Connectors check: C-129 <RHD>, C-143
<LHD> shift switch assembly connector, C-141
engine-A/T-ECU connector, C-105 intermediate
connector <RHD>

Check for the contact with terminals.

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Repair the defective connector.

STEP 4. MUT-II/III data list

•

Item 67: Select switch

•

Item 68: Upshift switch

•

Item 69: Downshift switch

Check the above data list (Refer to data list reference
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 5. Check the shift switch assembly.

Refer to

P.23A-167

<RHD> or

P.23A-166

<LHD>.

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Replace the shift switch assembly.

AC308735

BI

C-129

Harness side

Connector: C-129
<RHD>

AC308718

BD

C-143

Connector: C-143
<LHD>

Harness side

AC309479 AE

Connector: C-141 <LHD>

Connector: C-141 <RHD>

Engine-A/T-ECU

Harness side

Engine-A/T-ECU

C-141 (GR)

C-141 (GR)

AC308735

AW

C-105

Connector: C-105
<RHD>

10

1

21

16

13

4

11

2

12

3

1415

1718

5

20

7

19

6

8

22

9

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-118

STEP 6. Connector check: C-129 <RHD>, C-143
<LHD> shift switch assembly connector

Check for the contact with terminals.

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Repair the defective connector.

STEP 7. Measure the voltage at shift switch
assembly connector C-129 <RHD>, C-143 <LHD>
(1) Disconnect the connector, and measure the

voltage between terminal 3 and earth at the
wiring harness side.

(2) Ignition switch: ON

OK: System voltage

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Go to Step 8.

AC308735

BI

C-129

Harness side

Connector: C-129
<RHD>

AC308718

BD

C-143

Connector: C-143
<LHD>

Harness side

AC308735

BI

C-129

Harness side

Connector: C-129
<RHD>

AC308718

BD

C-143

Connector: C-143
<LHD>

Harness side