Mitsubishi Outlander GS45X. Manual - part 1320

GENERAL INFORMATION

TSB Revision

ELECTRONIC CONTROL AWD

27C-3

CONSTRUCTION DIAGRAM

.

AC901131AC

ABS/ASC-ECU

Electronic 
control 
coupling

Engine-ECU

Combination meter

Drive mode 
selector

ETACS-ECU

AWD-ECU

Data link 
connector

Drive mode 
selector

Drive mode indicator

GENERAL INFORMATION

TSB Revision

ELECTRONIC CONTROL AWD

27C-4

SYSTEM COMPONENT AND FUNCTION

Parts name

Functional description

Engine control module

Sends the following signals required by AWD-ECU via CAN 
communication.

• Engine torque signal

• Throttle position signal

• Engine speed signal

ABS/ASC-ECU

Sends the following signals required by AWD-ECU via CAN 
communication.

• ABS sensor signal (wheel speed signal) [4 wheels]

• ABS operation signal

• AWD limitation torque signal

Drive mode selector

Sends the drive mode switch signal [FWD/AWD/LOCK] to AWD-ECU.

ETACS-ECU

• Receives the drive mode switch signal [FWD/AWD/LOCK] from 

AWD-ECU and flashes the indicators (AWD operation indicator and 
LOCK indicator) in the combination meter.

• Flashes the indicators (AWD operation indicator and LOCK indicator) in 

the combination meter in case of failure.

Controls diagnostic function (Compatible with scan tool).

AWD-ECU

Calculates the optimum differential limitation force judging from the vehicle 
condition and present drive mode based on the signals from each ECU and 
switch, and controls the current value flown to the electronic control 
coupling.
Controls the indicators (AWD operation indicator and LOCK indicator) in 
the combination meter.
Controls the self-diagnostic function and fail-safe function.
Controls diagnostic function (Compatible with scan tool).

Electronic control coupling

Transmits the torque corresponding to the current value controlled by 
AWD-ECU to the rear wheels.

Drive mode indicator

• AWD operation indicator

• LOCK indicator

Integrated in the combination meter, and indicates the selected drive mode 
(Not displayed in FWD mode).

• When the AWD operation indicator and LOCK indicator flash alternately, 

the system automatically enters the front wheel drive mode to protect 
the drive system components, and the drive mode changeover with the 
drive mode selector becomes unavailable.

• When the drive system generates heat, the AWD operation indicator 

flashes.

• The indicator light operation signal from AWD-ECU is sent to the 

combination meter via ETACS-ECU using CAN communication.

Data link connector

Outputs the diagnostic trouble code and establishes the communication 
with scan tool.

SERVICE PRECAUTIONS

TSB Revision

ELECTRONIC CONTROL AWD

27C-5

SERVICE PRECAUTIONS

M1274005600057

.

TOWING

• The vehicle must be towed by a tow truck with all 

four wheels raised. If a vehicle is towed with only 
the front or rear wheels are raised, the drive sys-
tem components may be damaged or the vehicle 
may jump out of a tow truck (cart).

• Even if the drive mode selector is switched to 

"FWD," the vehicle cannot be towed with only the 
front or rear wheels raised. The vehicle must be 
towed by a tow truck with all four wheels raised.

.

WHEEL AND TIRE

Normally, all four tires must be same in size, in type, 
and in brand, except for when a spare tire is tempo-
rarily used. If a wheel or tire with incorrect size is 
installed or tire pressure is excessively out of the 
specified value, the electronic control AWD system 
will not operate correctly. In addition, drive system 
components may be damaged.

.

DRIVING ON SANDY OR SLUSHY ROAD

As the vehicle is intended for on-road use, long-time 
driving on a sandy or slushy road must be avoided. 
When the vehicle is driven on a sandy or slushy road 
for a long time, the fail-safe function of the electronic 
control AWD system tends to enter the protective 
control mode which switches the control from AWD 
to FWD gradually in order to protect the drive sys-
tem, and the indicators ("AWD" and "LOCK") tends to 
illuminate.

.

SPEED MEASUREMENT

When using the chassis dynamometer to measure 
the speed, always measure it under synchronized 
condition between front wheels’ speed and rear 
wheels’ speed. If the speed is measured with front 
wheels or rear wheels fixed, or with speed difference 
between front wheels and rear wheels, drive system 
components may be damaged.

SERVICE SPECIFICATIONS

M1274000100080

SEALANT

M1272000500156

Item

Standard value

Electronic control coupling solenoid 
resistance 

Ω [at 20 °C (68°F)]

Electronic control 4WD 2.2 

− 4.0

S-AWC

1.6 

− 3.7

Electronic control coupling stud bolt length  mm (in)

22.3 

− 25.1 (0.88 − 0.99)

Item

Specified sealant

Remark

Differential carrier and electronic 
control coupling mounting part

ThreeBond 1215, 1216, 1217 or 
equivalent

Semi-drying sealant

SPECIAL TOOLS

TSB Revision

ELECTRONIC CONTROL AWD

27C-6

SPECIAL TOOLS

M1274000200054

Tool

Tool number and name Supersession

Application

MB991958

a: MB991824
b: MB991827
c: MB991910
d: MB991911
e: MB991914
f: MB991825
g: MB991826

M.U.T.-III Sub Assembly

a: Vehicle 

communication 
interface (V.C.I.) 

b: M.U.T.-III USB Cable
c: M.U.T.-III Main 

Harness A (Vehicles 
with CAN 
communication 
system)

d: M.U.T.-III Main 

Harness B (Vehicles 
without CAN 
communication 
system)

e: M.U.T.-III main 

harness C (for 
Chrysler models only)

f: M.U.T.-III Adapter 

Harness

g: M.U.T.-III Trigger 

Harness

MB991824-KIT
NOTE: G: MB991826 
M.U.T.-III Trigger Harness 
is not necessary when 
pushing V.C.I. ENTER 
key.

CAUTION

For vehicles with CAN 
communication, use 
M.U.T.-III main harness 
A to send simulated 
vehicle speed. If you 
connect M.U.T.-III main 
harness B instead, the 
CAN communication 
does not function 
correctly.
Check of the electronic 
control AWD (the 
diagnostic trouble code 
display, service data 
display, freeze frame data 
display, actuator test with 
scan tool)

MB991910

MB991826

MB991958

MB991911

MB991914

MB991824

MB991827

MB991825

Do not use

a

b

c

d

e

f

g

Do not use