Mitsubishi Outlander GS45X. Manual — part 1325

DIAGNOSIS

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ELECTRONIC CONTROL AWD

27C-23

STEP 10. 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 2 seconds.

(3) Fully depress the accelerator pedal, and maintain its

position for 2 seconds.
NOTE: The coupling coil electronic control is also based on
the accelerator pedal opening degree, thus the signal is
sent to the ECU.

(4) Check if the DTC is set.
Q: Is the DTC C145A set?

YES : Replace AWD-ECU (Refer to

P.27C-95

). Then go to

Step 11.

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 11. 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 2 seconds.

(3) Fully depress the accelerator pedal, and maintain its

position for 2 seconds.
NOTE: The coupling coil electronic control is also based on
the accelerator pedal opening degree, thus the signal is
sent to the ECU.

(4) Check if the DTC is set.
Q: Is the DTC C145A set?

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

DIAGNOSIS

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ELECTRONIC CONTROL AWD

27C-24

DTC C145D: Wiring harness and coupling coil open circuit failure

ELECTRONIC
CONTROL
COUPLING
SOLENOID

ETACS-ECU

FUSIBLE
LINK

34

IGNITION
SWITCH (IG1)

IG1
RELAY

AWD-ECU

ACA02787

AC901227AB

C-128

C-31

C-138

Connectors: C-31, C-128, C-138

AC901229AB

Connectors: D-113, D119

D-113

D-119

DIAGNOSIS

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ELECTRONIC CONTROL AWD

27C-25

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

If the current flowing in the electronic control coupling
solenoid coil is smaller than the command value from
AWD-ECU, the system is deactivated.

.

DTC SET CONDITIONS

If the following conditions are met when the system
is activated, AWD-ECU switches the control from
AWD to FWD, flashes the AWD/LOCK indicators
alternately, and sets the DTC C145D.

• Sets the specified current command value to the

electronic control coupling solenoid

• Drive current value of the electronic control cou-

pling solenoid: Deviated below from the normal
current range

.

TROUBLESHOOTING HINTS

Current trouble

• Open circuit inside the electronic control coupling

solenoid

• Damaged wiring harness and connectors

• Open circuit between AWD-ECU and the

electronic control coupling solenoid

• AWD-ECU internal error

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 electronic control coupling failure

(solenoid failure)

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.

AC901228AB

C-315

C-309
(B)

ETACS-ECU
(front view)

Connectors: C309, C-315

DIAGNOSIS

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ELECTRONIC CONTROL AWD

27C-26

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 2 seconds.

(3) Fully depress the accelerator pedal, and maintain its

position for 2 seconds.
NOTE: The coupling coil electronic control is also based on
the accelerator pedal opening degree, thus the signal is
sent to the ECU.

(4) Check if the DTC is set.
Q: Is the DTC C145D 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 04: Coupling current command value

• Item 05: Coupling current monitor value

Q: Is the check result normal?

YES : Go to Step 10.
NO : Go to Step 4.

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-138 intermediate connector

• D-113 intermediate connector

• D-119 electronic control coupling solenoid connector

• C-31 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 11.

STEP 5. Wiring harness check
Check the wiring harness between the C-128 AWD-ECU con-
nector and the C-138 intermediate connector, the wiring har-
ness between the C-138 intermediate connector and the D-113
intermediate connector, and the wiring harness between the
D-113 intermediate connector and the D-119 electronic control
coupling solenoid side 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 11.