Mitsubishi Outlander XL. Manual — part 581

ZC3054640000

Body ground No.6
(Passenger’s side)

ZC3049790000

Body ground No.17
(Driver’s side)

Check the wiring harness between the C-23 drive mode selector
connector (terminal No. 2) and the body earth (No. 4 and No. 16)
for damage or other problem.

Q:Is the wiring harness in good condition?

YES:

Go to Step 6.

NO:

Repair the wiring harness. Then go to Step 9.

STEP 6. 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-313, C-317 ETACS-ECU connector

Q:Are the connectors and terminals in good condition?

YES:

Go to Step 7.

NO:

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

Step 9.

STEP 7. Wiring harness check
Check the wiring harness between the C-128 AWD-ECU
connector and the C-313 ETACS-ECU connector for damage or
other problem.

Q:Is the wiring harness in good condition?

YES:

Go to Step 8.

NO:

Repair damage or other problem in the wiring harness.

Then go to Step 9.

STEP 8. Retest the system.

Q:Does the malfunction occur again?

YES:

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

Step 9.

NO:

The trouble can be an intermittent malfunction.

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

STEP 9. Check whether the DTC is reset.

Q:Does the malfunction occur again?

YES:

Diagnose again from Step 1.

NO:

This diagnosis is complete.

ELECTRONIC CONTROL AWD

27C-83

DIAGNOSIS

Inspection Procedure 3: The Tight Corner Braking Phenomenon*Appears with the
Drive Mode Selector in the FWD or AWD Position.

M12704100033USA0000010000

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

ZC6000240002

Connectors: C-128

C-128

ZC6000250000

Connector: D-113

D-113

NOTE:

｠

*Tight corner braking phenomenon: When a AWD
vehicle makes sharp cornering in a paved road at
low speed (ex. parallel parking), there is a
difference in turning radius between front and rear
wheels. If such a difference can no longer be
compensated by tire slippage, the vehicle behaves
as if it is under braking.

｠

The vehicle is tuned so that the tight corner braking
phenomenon appears at a certain level with the
drive mode selector in the LOCK position.

27C-84

ELECTRONIC CONTROL AWD

DIAGNOSIS

COMMENTS ON TROUBLE SYMPTOM
If the tight corner braking phenomenon occurs with
the drive mode selector being on the FWD position,
the electronic control coupling may have a problem. If
the tight corner braking phenomenon occurs only with
the drive mode selector being on the AWD position,
the data received by AWD-ECU from each ECU, the
electronic control coupling, or AWD-ECU may have a
problem.

TROUBLESHOOTING HINTS

｠

Malfunction of electronic control coupling

｠

Malfunction of data transmitted from ABS system

｠

Malfunction of data transmitted from the engine
control system

｠

AWD-ECU malfunction

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. Check for the tight corner braking phenomenon
occurrence during driving on a flat road
Check if the tight corner braking phenomenon occurs during
driving on a flat road with the drive mode selector being on the
FWD or AWD position.

Q:Does the tight corner braking phenomenon occur?

YES:

Go to Step 2.

NO:

Go to Step 5.

STEP 2. Wiring harness check
Check the wiring harness between the C-128 AWD-ECU
connector (terminal No. 1) and the D-113 electronic control
coupling solenoid connector (terminal No. 1) for damage or other
problem.

Q:Is the wiring harness in good condition?

YES:

Go to Step 3.

NO:

Repair damage or other problem in the wiring harness.

Then go to Step 7.

STEP 3. Scan tool MB991958 data list
Check the service data for the items below. (Refer to P.
27C-87.)

｠

Item 16: FL wheel speed sensor

｠

Item 17: FR wheel speed sensor

｠

Item 18: RL wheel speed sensor

｠

Item 19: RR wheel speed sensor

｠

Item 26: Throttle position

Q:Does the service data meet the standard value range?

YES:

Go to Step 5.

NO:

Perform the troubleshooting of the ABS system (refer

to GROUP 35B - Troubleshooting P.35B-9) or the
troubleshooting of the engine control system (refer to
GROUP 13Ab - Diagnostic Trouble Code Chart P.13Ab-44).
Then go to Step 4.

ELECTRONIC CONTROL AWD

27C-85

DIAGNOSIS

STEP 4. Check for the tight corner braking phenomenon
occurrence during driving on a flat road
Check if the tight corner braking phenomenon occurs during
driving on a flat road with the drive mode selector being on the
FWD position.

Q:Does the tight corner braking phenomenon occur?

YES (Coil current is 0 A):

Measure the coil current when

the tight corner braking occurs. If the coil current
measures 0 A, replace the electronic control coupling
(Refer to P.27C-94). Then go to Step 5.

YES (Coil current is other than 0 A):

Measure the coil

current when the tight corner braking occurs. If the coil
current is other than 0 A, go to Step 5.

NO:

Go to Step 6.

STEP 5. Retest the system.

Q:Does the malfunction occur again?

YES:

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

Step 6.

NO:

The trouble can be an intermittent malfunction.

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

STEP 6. Retest the system.

Q:Does the malfunction occur again?

YES:

Replace the electronic control coupling. (Refer

to P.27C-94.) Then go to Step 7.

NO:

This diagnosis is complete.

STEP 7. Check whether the DTC is reset.

Q:Does the malfunction occur again?

YES:

Diagnose again from Step 1.

NO:

This diagnosis is complete.

Inspection Procedure 4: No DTC is set even when the AWD/LOCK Indicator Lamps
Flash.

M12704100034USA0000010000

COMMENTS ON TROUBLE SYMPTOM

｠

In case that the AWD/LOCK indicator flashes but no
DTC is set, the AWD-ECU power supply circuit
system may have a problem.

｠

If the AWD-ECU power supply voltage is
approximately 6.5 V or less when the system is in
operation (always), the CPU of AWD-ECU
automatically shuts down. At this time, if the AWD
control is in operation, it switches to the FWD

control. AWD-ECU cannot set the DTC because the
CPU shuts down. In addition, the combination
meter determines the AWD-ECU time-out, and
flashes both AWD and LOCK indicators.

PROBABLE CAUSES

｠

Damaged wiring harness and connectors

｠

AWD-ECU malfunction

27C-86

ELECTRONIC CONTROL AWD

DIAGNOSIS