Mitsubishi Outlander XL. Manual - part 572

STEP 4. Wiring harness check
Check  the  wiring  harness  between  the  C-128  AWD-ECU
connector and the C-315 ETACS-ECU connector for damage or
other problem.

Q:Is the wiring harness in good condition?

YES:

 Go to Step 5.

NO:

 Repair damage or other problem in the wiring harness.

Then go to Step 8.

STEP 5. Voltage measurement at the AWD-ECU connector

(1)

Disconnect the C-128 AWD-ECU connector.

C-128 harness 
connector: 
harness side 

ZC3047190000

C-128 harness 
connector: 
harness side 

ZC3047200000

(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 8.

NO:

 Go to Step 6.

STEP 6. Wiring harness check
Check  the  wiring  harness  between  the  C-128  AWD-ECU
connector  (terminal  No.  3)  and  the  C-309  ETACS-ECU
connector (terminal No. 1) for damage or other problem.

Q:Is the wiring harness in good condition?

YES:

 Go to Step 7.

NO:

 Repair the wiring harness. Then go to Step 8.

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.

(3)

Check if the DTC is set.

Q:Is the DTC No. C211E set?

YES:

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

Step 8.

NO:

 The trouble can be an intermittent malfunction.

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

ELECTRONIC CONTROL AWD

27C-47

DIAGNOSIS

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.

(3)

Check if the DTC is set.

Q:Is the DTC No. C211E set?

YES:

 Diagnose again from Step 1.

NO:

 This diagnosis is complete.

DTC C211F: Abnormal power supply voltage (Too high)

M12704100022USA0000010000

ETACS-ECU

FUSIBLE
LINK

34

IGNITION
SWITCH (IG1)

IG1
RELAY

AWD-ECU

D7G27M002A00

GREY

GREY

GREY

WHITE

WHITE

C-128

C-31

C-309

27C-48

ELECTRONIC CONTROL AWD

DIAGNOSIS

ZC6000240000

Connectors: C-31, C-128

C-128

C-31

ZC6000260000

ETACS-ECU
(front view)

C-315

C-309
(B)

Connectors: C-309, C-315

 

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
AWD-ECU  detects  a  power  supply  voltage
abnormality,  and  if  any  abnormality  occurs,  it
interrupts the system.

DTC SET CONDITIONS
If the following conditions are met when the system is
activated,  AWD-ECU  gradually  switches  the  control
from AWD to FWD, flashes the AWD/LOCK indicators
alternately, and sets the DTC No. C211F.

｠

Power supply voltage: 17 V or more

｠

Battery power supply voltage (CAN line): Less than
16 V

TROUBLESHOOTING HINTS

Current trouble

｠

Damaged wiring harness and connectors

｠

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

｠

Malfunction  of  alternator  or  other  power  supply
systems

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.)

｠

Malfunction  of  alternator  or  other  power  supply
systems

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.

ELECTRONIC CONTROL AWD

27C-49

DIAGNOSIS

(3)

Check  if  the  alternator  is  correctly  operated.  (Refer  to
GROUP  16a  -  On-vehicle  Service,  Generator  Output  Line
Voltage Drop Test P.16a-6.)

(4)

Check if the DTC is set.

Q:Is the DTC No. C211F set?

YES:

 Go to Step 3.

NO:

 This diagnosis is complete.

STEP 3. 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

｠

C-309, C-315 ETACS-ECU connector

｠

C-31 intermediate connector

Q:Are the connectors and terminals in good condition?

YES:

 Go to Step 4.

NO:

 Repair the connector(s) or terminal(s). Then go to

Step 8.

STEP 4. Wiring harness check
Check  the  wiring  harness  between  the  C-128  AWD-ECU
connector and the C-315 ETACS-ECU connector for damage or
other problem.

Q:Is the wiring harness in good condition?

YES:

 Go to Step 5.

NO:

 Repair damage or other problem in the wiring harness.

Then go to Step 8.

STEP 5. Voltage measurement at the AWD-ECU connector

(1)

Disconnect the C-128 AWD-ECU connector.

C-128 harness 
connector: 
harness side 

ZC3047190000

C-128 harness 
connector: 
harness side 

ZC3047200000

(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 8.

NO:

 Go to Step 6.

27C-50

ELECTRONIC CONTROL AWD

DIAGNOSIS