Mitsubishi Outlander XL. Manual - part 565

｠

Item 05: Coupling current monitor value

Q:Is the check result normal?

YES:

 Replace AWD-ECU. (Refer to P.27C-92.)

NO:

 Go to Step 4.

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

｠

C-128 AWD-ECU connector

｠

D-113 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 10.

STEP 5. Wiring harness check
Check  the  wiring  harness  between  the  C-128  AWD-ECU
connector  and  the  D-113  electronic  control  coupling  solenoid
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 10.

STEP 6. Resistance measurement between electronic
control coupling solenoid connector (coupling side)
terminals

1

2

ZC3052000001

D-119

Electronic
control coupling

Disconnect the D-119 connector, and measure the resistance
value between the connector terminals on the electronic control
coupling side.

Standard value: 2.2 - 4.0 ohm

Q:Is  the  measured  resistance  value  within  the  standard

value range?

YES:

 Go to Step 7.

NO:

 Replace the electronic control coupling. (Refer

to P.27C-94.) Then go to Step 10.

STEP 7. Voltage measurement at the AWD-ECU connector

(1)

Disconnect the C-128 AWD-ECU connector.

C-128 harness 
connector: 
harness side 

ZC3047190000

(2)

Measure the voltage between the C-128 wiring harness side
connector terminals No. 3/4 and No. 10.

OK: Battery voltage

Q:Is the check result normal?

YES:

 Go to Step 9.

NO:

 Go to Step 8.

ELECTRONIC CONTROL AWD

27C-19

DIAGNOSIS

C-128 harness 
connector: 
harness side 

ZC3047200000

STEP 8. Wiring harness check

NOTE: 

Prior to the wiring harness inspection, check the

C-315 ETACS-ECU connector, and repair if necessary.

｠

Wiring  harness  between  the  C-128  AWD-ECU  connector
(terminal  No.  3)  and  the  C-309  ETACS-ECU  connector
(terminal No. 1)

Check the wiring harness above for damage or other problem.

Q:Is the wiring harness in good condition?

YES:

 Go to Step 9.

NO:

 Repair the wiring harness. Then go to Step 10.

STEP 9. 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)

Use scan tool MB991958 to forcibly activate the electronic
control  coupling  from  0  N·m  to  100  N·m  in  10  N·m  steps.
(Refer to Actuator Test Table P.27C-89.)

(4)

Check if the DTC is set.

Q:Is the DTC No. C145A set?

YES:

 Replace AWD-ECU. (Refer to P.27C-92.) Then go to

Step 10.

NO:

 The trouble can be an intermittent malfunction.

(Refer to GROUP 00 - How to Cope with Intermittent
Malfunction P.00-15.)

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)

Use scan tool MB991958 to forcibly activate the electronic
control coupling from 0 to 100 N·m (0 to 73 ft-lb) in 10 N·m
(7.4 ft-lb) steps. (Refer to Actuator Test Table P.27C-89.)

(4)

Check if the DTC is set.

Q:Is the DTC No. C145A set?

YES:

 Diagnose again from Step 1.

NO:

 This diagnosis is complete.

27C-20

ELECTRONIC CONTROL AWD

DIAGNOSIS

DTC C145D: Wiring harness and coupling coil open circuit failure

M12704100015USA0000010000

ETACS-
ECU

FUSIBLE
LINK

34

AWD-ECU

ELECTRONIC
CONTROL
COUPLING
SOLENOID

D7G27M000A00

GRA

Y

BLUE

YELLO

W

GRA

Y

WHITE

C-309

C-31

C-128

D-113

D-119

YELLO

W

BLUE

ZC6000240000

Connectors: C-31, C-128

C-128

C-31

ZC6000250000

Connector: D-113

D-113

ZC6000260000

ETACS-ECU
(front view)

C-315

C-309
(B)

Connectors: C-309, C-315

ELECTRONIC CONTROL AWD

27C-21

DIAGNOSIS

 

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 No. C145D.

｠

Sets  the  specified  current  command  value  to  the
electronic control coupling solenoid

｠

Drive current value of the electronic control coupling
solenoid: Deviated from the normal current range

TROUBLESHOOTING HINTS

Current trouble

｠

Open circuit inside the electronic control coupling
solenoid

｠

Damaged wiring harness and connectors

｠

Short  to  earth  or  open  circuit  between  the
battery and AWD-ECU

｠

Short to power supply or open circuit between
AWD-ECU and the electronic control coupling
solenoid

｠

Short  to  earth  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 Treat Past Trouble 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 54D - CAN

bus diagnostic chart P.54D-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 2 seconds.

(3)

Use scan tool MB991958 to forcibly activate the electronic
control coupling from 600 to 730 N·m (443 to 538 ft-lb) in 10
N·m(7.4  ft-lb)  steps.  (Refer  to  Actuator  Test  Table  P.
27C-89.)

(4)

Check if the DTC is set.

Q:Is the DTC No. C145D set?

27C-22

ELECTRONIC CONTROL AWD

DIAGNOSIS