Mitsubishi Outlander GS45X. Manual — part 1327

DIAGNOSIS

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ELECTRONIC CONTROL AWD

27C-31

DTC C1460: Drive mode selector circuit failure

CAUTION

If there is any problem in the CAN bus lines, an
incorrect DTC may be set. Prior to this diagnosis,
always diagnose the CAN bus lines.

.

OPERATION

Due to the drive mode selector failure, the drive
mode is incognizable, AWD-ECU detects the drive
mode selector internal circuit failure, and flashes the
4WD/LOCK indicators.

.

ETACS-
ECU

IGNITION
SWITCH (IG1)

IG1
RELAY

AWD-ECU

DRIVE MODE
SELECTOR

ACA02788

AC901227AE

C-32

C-138

Connectors: C-32, C-128, C-138

C-128

AC703680AC

Connector: C-23

DIAGNOSIS

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ELECTRONIC CONTROL AWD

27C-32

DTC SET CONDITIONS

If the following conditions are met, AWD-ECU
switches the control from AWD mode to AWD AUTO
mode, flashes the 4WD/LOCK indicators alternately,
and sets the DTC C1460.

• Drive mode selector internal short

• IG1 voltage: 7 V or more

.

TROUBLESHOOTING HINTS

Current trouble

• Drive mode selector internal short

• Short to ground between AWD-ECU and the

drive mode selector

• AWD-ECU malfunction

Past trouble

• Intermittent wiring harness or connector failure

NOTE: For diagnosis procedures, refer to "How
to treat past trouble" (Refer to GROUP 00

−

How

to Use Troubleshooting/How to Treat Past Trou-
ble

P.00-17

).

• Intermittent malfunction of drive mode selector

DIAGNOSIS

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicle Communication Interface

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A

STEP 1. Scan tool MB991958 CAN bus diagnostics
Use scan tool MB991958 to diagnose the CAN bus lines.
Q: Is the check result normal?

YES : Go to Step 3.
NO : Repair the CAN bus line (Refer to GROUP 54C

−

Troubleshooting/CAN Bus Diagnostics Table

P.54C-17

). On completion, go to Step 2.

STEP 2. Check whether the DTC is reset after repairing the
CAN bus line.
(1) Erase the DTC.
(2) Turn the ignition switch from the "LOCK" (OFF) position to

the "ON" position and hold there for 15 seconds.

(3) Check if the DTC is set.
Q: Is the DTC C1460 set?

YES : Go to Step 3.
NO : The procedure is complete.

STEP 3. Scan tool MB991958 data list
Check the following data list (Refer to

P.27C-90

).

• Item 10: FWD SW

• Item 11: LOCK SW

Q: Is the check result normal?

YES : Go to Step 7.
NO : Go to Step 4.

DIAGNOSIS

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ELECTRONIC CONTROL AWD

27C-33

STEP 4. Check the following connector:
Check the connectors below for improper engagement, termi-
nal damage or terminal drawn in the connector case.

• C-128 AWD-ECU connector

• C-23 Drive mode selector connector

• C-138 intermediate connector

• C-32 intermediate connector

Q: Are the connectors and terminals in good condition?

YES : Go to Step 5.
NO : Repair the connector(s) or terminal(s). Then go to

Step 8.

STEP 5. Wiring harness check
Check the wiring harness between the C-128 AWD-ECU con-
nector and the C-23 drive mode selector connector for damage
or other problem.
Q: Is the wiring harness in good condition?

YES : Go to Step 6.
NO : Repair damage or other problem in the wiring

harness. Then go to Step 8.

STEP 6. Resistance measurement between the drive mode
selector connector terminals
Disconnect the C-23 connector, and measure the resistance
value between the connector terminals on the drive mode
selector side.

Q: Is the measured resistance value within the standard

value range?
YES : Go to Step 7.
NO : Replace the drive mode selector (Refer to

P.27C-96

).

Then go to Step 8.

Switch position

Terminal
number

Normal
conditions

2WD (FWD)

1

− 2

Continuity
exists (2 ohm
or less).

2

− 3

No continuity

4WD (AWD)

1

− 2

No continuity

2

− 3

LOCK

1

− 2

No continuity

2

− 3

Continuity
exists (2 ohm
or less).

DIAGNOSIS

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ELECTRONIC CONTROL AWD

27C-34

STEP 7. Check whether the DTC is reset.
(1) Erase the DTC.
(2) Turn the ignition switch from the "LOCK" (OFF) position to

the "ON" position and hold there for 15 seconds.

(3) Check that the meter display is correct when the drive mode

selector is switched to each position (FWD, AWD, and
LOCK).

(4) Check if the DTC is set.
Q: Is the DTC C1460 set?

YES : Replace AWD-ECU (Refer to

P.27C-95

). Then go to

Step 8 .

NO : The trouble can be an intermittent malfunction (Refer

to GROUP 00

− How to Use Troubleshooting/How to

Cope with Intermittent Malfunctions

P.00-15

).

STEP 8. Check whether the DTC is reset.
(1) Erase the DTC.
(2) Turn the ignition switch from the "LOCK" (OFF) position to

the "ON" position and hold there for 15 seconds.

(3) Check that the meter display is correct when the drive mode

selector is switched to each position (FWD, AWD, and
LOCK).

(4) Check if the DTC is set.
Q: Is the DTC C1460 set?

YES : Diagnose again from Step 1.
NO : The procedure is complete.